Black Breast Cancer Survivors Research Articles

Systemic DNA Damage and Repair Activity Vary by Race in Breast Cancer Survivors

Non-Hispanic Black breast cancer survivors have poorer outcomes and higher mortality rates than White survivors, but systemic biological mechanisms underlying these disparities are unclear. We used circulating leukocytes as a surrogate for measuring systemic mechanisms, which might be different from processes in the target tissue (e.g., breast). We investigated race-based differences in DNA damage and repair, using a novel CometChip assay, in circulating leukocytes from breast cancer survivors who had completed primary cancer therapy and were cancer free. We observed novel race-based differences in systemic DNA damage and repair activity in cancer survivors, but not in cells from healthy volunteers. Basal DNA damage in leukocytes was higher in White survivors, but Black survivors showed a much higher induction after bleomycin treatment. Double-strand break repair activity was also significantly different between the races, with cells from White survivors showing more sustained repair activity compared to Black leukocytes. These results suggest that cancer and cancer therapy might have long-lasting effects on systemic DNA damage and repair mechanisms that differ in White survivors and Black survivors. Findings from our preliminary study in non-cancer cells (circulating leukocytes) suggest systemic effects beyond the target site, with implications for accelerated aging-related cancer survivorship disparities.

Abstract PO3-27-06: Investigating The Association Between Exercise and Quality of Life Among Breast Cancer Survivors in The Black Women’s Health Study

Abstract Background: Black breast cancer survivors (BCS) experience suboptimal quality of life (QoL) compared to White BCS. QoL is a multi-dimensional concept focused on different aspects of wellbeing. Exercise (a subset of physical activity) has been shown to improve QoL in cancer survivors. However, there is limited evidence on the benefits of exercise in relation to QoL among Black BCS and warrants further investigation. Purpose: To examine the association between exercise intensity (e.g., moderate activity) and multiple domains of QoL (e.g., physical wellbeing) among BCS in the Black Women’s Health Study (BWHS). Methods: The BWHS is the largest prospective cohort study following 59,000 Black women in the United States since 1995. Self-reported questionnaires are distributed every two years to obtain current health information, including lifestyle factors and disease occurrence. The 2019 survey data, completed by 3,608 Black BCS, were used to address the primary aim. Of the 3,608 Black BCS, 1,085 females were eligible to participate in this cross-sectional study. The primary predictors were moderate and vigorous exercise intensity. The outcomes (physical, mental, functional, social functioning, and financial wellbeing) were categorized as excellent, very good or good, and fair or poor health. The covariates were marital status, occupation, education, age, body mass index, time since diagnosis, breast cancer stage, and general health. Adjusted multinomial logistic regressions were performed to estimate the odds ratios and 95% confidence intervals for the associations with each predictor. Multiple imputation was used to address missing data. Results: At baseline, the majority of the BCS were 64 years or younger (99%), premenopausal (69%), employed (95%), and had more than a high school degree (86%). About 50% of the participants were married or living as married. There were significant and positive associations between exercise intensity and QoL (p< .05). Compared to BCS who reported little or no exercise (< 60 minutes/week), those who reported at least 60 minutes/week of vigorous exercise had greater odds of experiencing excellent QoL including financial wellbeing (OR=1.70, 95% CI: 1.08-2.67), functional wellbeing (OR=3.64, 95% CI: 1.56-8.49), social functioning (OR=4.56, 95% CI: 2.42-8.60), and physical wellbeing (OR=4.26, 95% CI: 2.12-8.52). Similarly, BCS who engaged in at least 150 minutes of moderate exercise/week had increased odds of reporting excellent social functioning (OR=2.59, 95% CI: 1.41-4.76) and functional wellbeing (OR=4.40, 95% CI: 1.89-10.24) than those who engaged in less than 150 minutes/week of moderate exercise. Conclusions: Black BCS who engage in certain durations (e.g., 150 minutes/week) and exercise intensities (e.g., moderate activity) tend to have better QoL. These findings may help to build upon the relevance of exercise in the context of supportive care for racial and ethnic minority cancer survivors and encourage healthcare professionals to assess the frequency, intensity, time, and type of exercise during routine or follow-up care. Future longitudinal studies are needed to examine the proposed associations among Black BCS and to compare the current study findings. Citation Format: Natasha Burse, Chris Wiesen, Todd Schwartz, Shawn Kneipp, Ashley Leak Bryant. Investigating The Association Between Exercise and Quality of Life Among Breast Cancer Survivors in The Black Women’s Health Study [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO3-27-06.

Abstract PO3-09-06: Role of Obesity-Related Biomarkers on Mortality Among Black Breast Cancer Survivors in the Women’s Circle of Health Followup Study

Abstract Background: Central obesity and higher adiposity have been recently associated with higher all-cause and breast cancer-specific mortality in Black breast cancer survivors participating in the Women’s Circle of Health Followup Study. Adipose tissue is a dynamic organ producing adipocytokines, including leptin, adiponectin, adipsin, resistin, lipocalin-2/NGAL, plasminogen-activator inhibitor type 1 (PAI-1) and CXCL11, TNFα, and IL-6, which modulate inflammatory markers in obesity, including the release of proinflammatory C-reactive protein (CRP). These circulating biomarkers play important roles linking obesity with insulin resistance, hyperinsulinemia, chronic inflammation, and altered immunity, which may impact overall and breast cancer mortality. The goal of this analysis was to determine if circulating adipocytokines and obesity-related biomarkers of systemic inflammation are associated with breast cancer and overall survival in Black breast cancer survivors. Methods: Circulating biomarkers were assayed for 460 Black breast cancer survivors who provided a blood sample 2 years post-diagnosis in the Women’s Circle of Health Followup Study, a population-based cohort of Black breast cancer survivors in New Jersey enrolled within 12 months of diagnosis. Associations between biomarkers (by tertiles) and overall survival were assessed using multivariable Cox regression models. Breast cancer specific survival was assessed based on competing risk analyses using the Fine and Gray subdistribution hazard model. Multivariable models were adjusted for age, body mass index as a measure of overall adiposity, education, menopausal status, stage, grade, subtype, and chemotherapy, hormonal therapy, and radiation treatments received. All tests were two-sided at Analyses were conducted at P=0.05. Results: In multivariable analyses, lipocalin-2, CXCL11, and CRP, biomarkers of adipose tissue inflammation closely related to insulin resistance, were associated with worse overall but not breast cancer specific survival. Compared to women in the lowest tertile of lipocalin-2, women in the highest tertile had a 3-fold increased risk of dying from any cause (T3 vs T1, HR=3.08, 95% CI: 1.29-7.39, p= 0.004) and a ~2-fold increased risk of dying from breast cancer, which was not statistically significant (HR= 1.84, 95% CI: 0.59-5.79, p=0.30). Similarly, women in the highest tertile of CXCL11 were at 2-fold increased risk of dying of any cause (HR: 2.10, 95% CI: 0.96-4.57, p=0.06) but no associations were observed with risk of dying from breast cancer (HR:1.31, 0.42-4.13, p=0.64). Circulating CRP, as a marker of systemic inflammation, was also associated with worse overall survival (T3 vs T1 HR: 2.51, 95% CI: 1.07-5.89, p=0.03), showing a borderline significant association with increased breast cancer specific survival (T3 vs T1 HR: 4.32, 95% CI: 0.87-21.38, p=0.07). No associations with overall or breast cancer specific mortality were observed for any of the other adipocytokines examined. Conclusion: In this population-based cohort study of Black breast cancer survivors, biomarkers associated with adipose tissue related inflammation and insulin resistance were associated with reduced overall survival. Relationships with breast cancer survival were not significant, possibly due to limited sample size. Citation Format: Shipra Gandhi, Chi-Chen Hong, Anthony George, Kristopher Attwood, Bo Quin, Nur Zeinomar, Yong Lin, Christine Ambrosone, Kitaw Demissie, Elisa Bandera. Role of Obesity-Related Biomarkers on Mortality Among Black Breast Cancer Survivors in the Women’s Circle of Health Followup Study [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO3-09-06.

Abstract PO3-27-07: Age at diagnosis and the food environment are associated with postdiagnosis weight gain among Black American breast cancer survivors in Maryland

Abstract Background: Weight management is now included in the American Cancer Society/American Society of Clinical Oncology Breast Cancer Survivorship Care Guidelines due to its clinical impact on breast cancer (BC) survivorship outcomes. While numerous individual-level risk factors for weight gain after BC diagnosis have been identified, such as younger age at diagnosis, cancer stage, and cancer treatments (chemotherapy), there are limited data on the impact of neighborhood-level factors associated with weight change postdiagnosis among Black BC survivors. Methods: Utilizing social media recruitment strategies and survivor networks, we recruited 100 Black female BC survivors to complete an online survey, including demographic, clinical characteristics, and lifestyle factors, between January 5, 2022, and August 18, 2022. To capture the food environment, we utilized the 2023 Food Environment Index County Health Rankings, which accounts for access to healthy foods due to proximity and income (considering the distance an individual lives from a grocery store or supermarket, locations for health food purchases in most communities, and the inability to access healthy food because of cost barriers). The index ranges from 0 (worst) to 10 (best). Our outcome of postdiagnosis weight gain was calculated as percent weight change from time at diagnosis to time of survey, calculated as ([weight at survey – weight at diagnosis]/weight at diagnosis) × 100. Participants were grouped into mutually exclusive categories of stable weight (within ± 3%) or weight loss (≤-3%) compared to weight gain (≥ 3%). Adjusted odds ratios (aORs) and 95% confidence intervals (CI) were calculated for the associations between clinical factors, county-level food environment index, and postdiagnosis weight gain. Results: The average ages at time of survey and at primary BC diagnosis were 58.6 years (standard deviation [SD]= 10.1) and 49.1 years (SD=10.2), respectively. Most women (70%) were diagnosed with invasive BC and only 22% were currently undergoing treatment at the time of the survey. While only 7% reported being obese at the time of BC diagnosis, 54% reported being obese at the time of survey which was on average 9 years post-BC diagnosis; and while 61 women had weight loss or stable weight, 34 women experienced weight gain postdiagnosis. Among the 95 women included in multivariable models who reported weight and height measurements for calculating weight change, women ≥50 years of age at BC diagnosis (versus < 50 years) were 3.43 times more likely to gain weight after diagnosis (95% CI 1.13-11.50). Women living in counties with a Food Environment Index ≥8.8 (median cut-point compared to < 8.8) were significantly less likely to experience weight gain (aOR 0.11; 95% CI 0.01-0.90). Stage and BC treatments were not significantly associated with weight gain. Conclusions: Our study findings demonstrate the importance of evaluating the food environment during BC survivorship and longitudinal monitoring of weight postdiagnosis to mitigate weight gain among Black BC survivors. Our findings will be used to inform a larger prospective study and future interventions among this population. Citation Format: Avonne Connor, Katherine Ho, Kate Dibble, Kala Visvanathan. Age at diagnosis and the food environment are associated with postdiagnosis weight gain among Black American breast cancer survivors in Maryland [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO3-27-07.

Abstract PO2-11-12: The power of storytelling to heal, build community, and understand the experiences of Black breast cancer survivors

Abstract Background: The BRIDGE community focus group was designed to support and empower current and former Black breast cancer patients. The overarching goals of the focus group were to provide a mechanism for participants to amplify their voices through storytelling, foster healing, and establish a supportive community. Additionally, the research team aimed to gather qualitative data on social support, treatment adherence barriers, interactions with medical providers, and experiences with race and racism within and outside of the healthcare system. Approach: The focus group consisted of six sessions, each with a specific agenda and activities. Participants were encouraged to keep journals throughout the program. Each session began with an icebreaker and journal discussion. Session-specific activities were designed to encourage self-reflection, exploration of personal identities, and discussion of fears. These topics were explored through creative outlets such as role-play, storyboards, and jewelry-making. Each session ended with a unifying affirmation and opportunity for fellowship. Results: We enrolled 10 Black women previously diagnosed with breast cancer and provided a safe space for them to reflect on their breast cancer journey, associated fears, and the role of race in their healthcare experience. Participants discussed positive and negative experiences with healthcare providers, highlighting the knowledge and access gaps that often exist in marginalized communities. The program also provided insights into the multi-level concept of support and its impact on breast cancer outcomes. Participants discussed the positive aspects of familial and community support but identified several areas where system and structural supports may have improved their outcomes. After completing all six sessions, women reported an improvement in their overall self-actualization and purpose—with several describing their time in the program as ‘life-changing’. Notably, the focus group facilitated deep connection and friendship among participants and improved general wellness and satisfaction. Discussion: Through the sharing of personal narratives and supportive discussions, the focus group created a safe environment where participants felt empowered to express their emotions, address challenges, and dismantle fears related to breast cancer mortality. The BRIDGE research team will summarize the themes that emerged across sessions to share with scientific, clinical, and community stakeholders. In parallel, they will explore opportunities for continued community building and support for participants beyond the focus group sessions. Overall, this storytelling focus group showcased the significance of amplifying the voices of historically marginalized groups, providing support, and fostering community. The insights gained have the potential to inform future interventions and support services for Black breast cancer survivors, addressing their unique needs and challenges and ultimately improving cancer health equity. Citation Format: Lauren McCullough, Cynthia Young, Chava Bowden, Madison Gardner, Breanna Berry, Alexix Smith, Jacquelyn Anthony Bryant. The power of storytelling to heal, build community, and understand the experiences of Black breast cancer survivors [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO2-11-12.

Barriers to endocrine therapy adherence: perspectives of Black breast cancer survivors and their providers.

Adherence to oral endocrine therapy (ET) remains an issue for up to half of women prescribed these medications. There is emerging data that Black breast cancer survivors (BCS) have lower rates of ET adherence. Given the disparities in breast cancer recurrence and survival for Black BCS compared to their White counterparts, the goal of this study is to better understand barriers to ET adherence among Black BCS from the patient and provider perspectives. In this qualitative study, we conducted semi-structured interviews between October 29, 2021, and March 1, 2023. Interviews were recorded and transcribed, and coded data were organized into primary and secondary themes. Participants were recruited from a single academic cancer center. A convenience sample of 24 Black BCS and 9 medical oncology providers was included. Eligible BCS were 18years or older, English-speaking, diagnosed with stage I-III hormone receptor-positive breast cancer, who had initiated ET. Mean age of the BCS was 55years (interquartile range, IQR 17years). About one-fourth had a high school diploma or less (26.1%) and 47% completed a college education or higher. Approximately one-third of participants had annual household incomes of $40,000 or less (30.4%) or more than $100,000 (30.4%). Forty-three percent of the patient participants had private insurance; 11% were insured through Medicaid or the federal healthcare exchange; 26.1% had Medicare; and 13% were uninsured. Of the 9 medical oncology providers interviewed, 2 were advanced practice providers, and 7 were medical oncologists. We found 3 major themes: (1) Black BCS often had concerns about ET before initiation; (2) after initiation, both BCS and providers reported side effects as the most impactful barrier to ET adherence; and (3) survivors experienced challenges with managing ET side effects. Our results suggest that multifaceted support interventions for managing ET-related symptoms may lead to improved adherence to ET among Black women and may reduce disparities in outcomes. Multifaceted support interventions for managing ET-related symptoms may lead to improved adherence to ET among Black breast cancer survivors.

Abstract 3474: Racial disparities in receipt of surveillance mammography after breast cancer diagnosis

Abstract Background: The 5-year survival rate for breast cancer (BC) stands at an estimated 91%, with approximately 3.8 million BC survivors in the U.S. This large population of breast cancer survivors remains at risk of loco-regional recurrence, with variations noted across racial groups. White survivors face a locoregional breast cancer recurrence rate of 1.8%, whereas Black, Asian, and Hispanic survivors experience higher rates of 3.9%, 3.6%, and 3.1%, respectively. Notably, Black BC survivors with recurrent breast cancer exhibit a median survival time of 1.8 years compared with 3.6 years observed for White BC survivors. Current recommendations from the U.S. Preventative Services Task Force and the American College of Radiology advocate for surveillance through annual mammography and routine clinical visits following breast-conserving surgery and lumpectomies. However, there are gaps in the data available regarding disparities in the utilization of surveillance mammography by race/ethnicity. Thus, the goal of this study is to estimate race/ethnic disparities in surveillance mammography utilization and its impact on survival among breast cancer survivors at a large comprehensive cancer center. Methods: A retrospective cohort study of female breast cancer survivors ≥19 years diagnosed and/or treated at the Duke Cancer Institute (DCI) between 2014 and 2022 was conducted. Data was abstracted on patient socio-demographics, cancer type (invasive ductal and ductal in situ carcinomas) and utilization of surveillance mammography within 2-5 years post initial breast cancer diagnosis. Chi-squared testing will be used to analyze rates of mammography surveillance receipt among different races presenting with BC at DCI. Kaplan-Meier estimates will be used for analysis on survival. Results: A total of 10,904 women with a mean age of 43.7 years were included in the study. The study cohort is comprised of 69% non-Hispanic (NH) White, 24% NH Black, 2.2% Hispanic, 0.5% NH Native American, 1% NH other, and 3.2% NH Asian women. There were 1,791 cases of ductal in situ carcinomas and 9,113 invasive ductal carcinoma cases. NH Black women had the lowest 5-year relative survival rate (81.5%) of all represented racial groups: NH White 89.1%, Hispanic 95.3%, NH Native 87.8%, Asian 97.9%, and NH Other 88.0%. Ongoing analysis will be completed to estimate disparities in the use of post-treatment surveillance mammography amongst breast cancer survivors. Conclusions: This study will inform efforts to increase post-treatment surveillance and improve adherence to survivorship guidelines with the ultimate goal of reducing mortality disparities among breast cancer survivors. Citation Format: Jasmine G. Wilkerson, Frances Wang, Yadurshini Raveendran, Tomi Akinyemiju. Racial disparities in receipt of surveillance mammography after breast cancer diagnosis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 3474.

Abstract 6297: “They should get a cardiologist to be a part of the team when you first go”: A qualitative analysis of racial differences in the cancer care experience amongst breast cancer patients receiving cardiotoxic therapy

Abstract Background: Black breast cancer survivors are up to three times more likely to develop cancer therapy-related cardiac dysfunction (CTRCD) when compared to White survivors. Reasons behind this disparity are not fully understood, and studies examining these disparities have been limited. One contributor may be variations in communications about CTRCD risk and risk prevention strategies between providers and patients by race and ethnicity. This study assessed racial differences in Black versus White breast cancer patients with provider communication regarding cardiotoxic treatments. Methods: Study participants were recruited from a comprehensive cancer center. Eligibility included identifying as a Black/African American or White woman, a diagnosis of stage I-III breast cancer, and receipt of anthracyclines and/or trastuzumab. Semi-structured interviews were conducted with survivors. Interviews were audio-recorded, transcribed, and were reconciled using Dedoose. Results: Interviews were conducted with 16 survivors (8 Black, 8 White) with a median age at diagnosis of 53 years. Prior to starting treatment, 100% of white survivors reported that a provider discussed CTRCD risk, however only 75% black survivors reported CTRCD discussion. Although all women received information on prevention strategies including exercise and nutrition, there were differences in timing of information delivered. Black women desired to have information at the beginning of treatment, but no White women mentioned a desire to receive information earlier. A greater proportion of White women reported engaging in prevention strategies such as exercising and eating healthy during treatment. In terms of knowledge gained, 75% of White Women reported being satisfied with the information given regarding cardiotoxic risk and prevention whereas only 45% of Black women reported being satisfied.As 65% of Black women (vs. White) reported being less than satisfied with the information given, Black women were also more likely to recommend access to additional resources. For example, one Black woman suggested that “they [care team] should get a cardiologist to be a part of the team when they first go. Conclusion & Implications: Fewer Black women reported being satisfied with their medical visits regarding CTRCD risk and prevention strategies. Racial differences in assessments of these experiences highlight opportunities to develop culturally-tailored communication interventions to reduce racial disparities in CTRCD; however, future research is needed to assess interpersonal aspects of care during the receipt of cardiotoxic treatment. Citation Format: Ashley Turner, America Vijil, Sara Gómez-Trillos, Victoria Williams, Paulette Omeaku, Susan Hong, Arnethea L. Sutton. “They should get a cardiologist to be a part of the team when you first go”: A qualitative analysis of racial differences in the cancer care experience amongst breast cancer patients receiving cardiotoxic therapy [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 6297.

Gynecologic Care of Black Breast Cancer Survivors.

Black patients suffer from breast cancer-related racial health disparities, which could have implications on their gynecologic care. This review explores considerations in the gynecologic care of Black breast cancer survivors. Black people have a higher risk of leiomyoma and endometrial cancer, which could confound bleeding patterns such as in the setting of tamoxifen use. As Black people are more likely to have early-onset breast cancer, this may have implications on long-term bone and heart health. Black patients may be more likely to have menopausal symptoms at baseline and as a result of breast cancer treatment. Furthermore, Black patients are less likely to utilize assisted reproductive technology and genetic testing services. It is important for healthcare providers to be well-versed in the intersections of breast cancer and gynecologic care. Black breast cancer survivors may have unique considerations for which practitioners should be knowledgeable.

Cardio-oncology disparities: Interplay of psychosocial stress, inflammation, and cardiometabolic health among Black breast cancer survivors

Black breast cancer (BC) survivors have a lower survival rate at every stage of the disease, largely due to a higher BC mortality rate of 41 %, more aggressive forms of BC, cardiovascular comorbidities, and stress related to structural inequities. An underexplored factor is Black women's increased risk for cardiometabolic syndrome (CM), exacerbating cardio-oncology disparities. Many factors associated with increased risk for CM are modifiable through lifestyle behavior interventions and generally fail to improve outcomes among Black women. This lack of efficacy is likely due to the interventions' failure to address the cumulative effects of long-term exposure to psychosocial stressors unique to Black women using cultural frameworks. The protocol design of an 8-week pilot study was presented at the inaugural UF Health Cardio-Oncology Symposium, “Emerging Topics in Cardio-Oncology.” Twenty-six selfreported Black BC survivors will be randomized using a two-group parallel random assignment experimental design, and study details are reported on ClinicalTrials.gov (#NCT05473026). Our primary aim is to assess the feasibility and acceptability of a culturally relevant gratitude journaling intervention to manage stress and promote goalsetting techniques. The second aim is to test the preliminary efficacy of the intervention on stress, inflammatory biomarkers (TNF-α, IL-6, GDF15, CRP), dispositional gratitude, spiritual well-being, and a culturally relevant framework (Superwoman Schema) to examine stressors unique to Black women. If found to be effective, this clinical trial will provide evidence of a viable non-pharmacological intervention for managing psychosocial stressors, improving CM risk, and reducing cardio-oncology disparities.

Abstract IA038: Neighborhood factors for adiposity change and cardiovascular health among Black breast cancer survivors

Abstract Maintaining a healthy weight and cardiovascular health (CVH) after a breast cancer (BC) diagnosis is gaining clinical attention because they are essential for reducing the burden of cardiovascular disease, achieving optimal cancer survivorship, and possibly reducing mortality after a BC diagnosis. Individual behaviors and choices are largely influenced by the surrounding social and built environment; however, the neighborhood risk factors influencing post-diagnosis weight change and CVH are unclear among Black women, who have higher rates of obesity, unfavorable CVH and mortality than any other racial/ethnic group. To address this knowledge gap, we conducted analyses based on the Women's Circle of Health Follow-Up Study (WCHFS), a population-based prospective cohort of Black BC survivors in New Jersey. In the first analysis, adiposity changes during the period ~10 months to 2 years after diagnosis were evaluated among 785 women enrolled in the WCHFS. We found that despite a high baseline prevalence of overweight or obesity, weight gain was common. Greater density of fast-food restaurants and lower walkability were identified as neighborhood-level risk factors for weight gain. We also showed that intentional weight loss was much less common than weight gain, and its neighborhood risk factors were considerably different from unintentional weight loss. In a subsequent analysis, we aimed to capture the complex interplay between neighborhood features through neighborhood archetype analysis based on 16 social and built environment features, and to estimate their associations with CVH around 2 years after diagnosis among Black women. The CVH index used American Heart Association definition and scoring criteria for BMI, diet, smoking, physical activity, blood pressure, cholesterol, glucose, and sleep. We found that Black BC survivors, on average, reached only half of the recommended optimal CVH score, and no participant met all ideal CVH metrics. Among the four neighborhood archetypes identified, we found that the archetype associated with the most favorable post-diagnostic CVH was characterized by diverse racial and ethnic populations, a higher neighborhood socioeconomic status, greater densities of restaurants, food stores, physical activity facilities, walkable destinations, and ambulatory care. However, only 16% of our participants lived in this type of neighborhood. In summary, our work revealed that residential environments may considerably impact adiposity change and CVH among Black BC survivors. Through these studies, we provided insights into the distinct neighborhood characteristics and archetypes that may influence BC survivorship for Black women. Recognizing that social determinants of health act at multiple levels, domains, and factors, it is crucial that future research comprehensively investigates neighborhood and other multilevel determinants to identify the specific social barriers that must be addressed to achieve the most measurable improvements in BC survivorship for Black women. Citation Format: Bo Qin, Carola T. Sánchez-Díaz, Hari S. Iyer, Noreen Goldman, Nur Zeinomar, Andrew G. Rundle, Christine B. Ambrosone, Kitaw Demissie, Chi-Chen Hong, Gina S. Lovasi, Elisa V. Bandera. Neighborhood factors for adiposity change and cardiovascular health among Black breast cancer survivors [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr IA038.

Abstract C020: Racial differences in distress levels among Black and White hormone receptor–positive breast cancer survivors over a 3-year period

Abstract Purpose: The purpose of this study was to determine longitudinal racial variations in distress levels among Black and White women with hormone receptor-positive (HR+) breast cancer. Methods: This is a secondary data analysis from the Women’s Hormonal Initiation and Persistence (WHIP) Study, an observational study of HR+ breast cancer survivors. Data regarding patient demographics (e.g., race, age, education, income) were collected via surveys. Clinicopathologic factors (e.g., stage, type of surgery, chemotherapy, and radiation) and medication type (tamoxifen vs. aromatase inhibitors) were extracted from medical records. The National Comprehensive Cancer Network’s Distress Thermometer was used to capture distress following AET initiation at 4 timepoints (baseline, year 1, year 2 and year 3). Mixed linear effects models were used to identify differences in distress by race over the 3-year period. An unadjusted model included race and time as covariates, whereas the adjusted model controlled for demographics, clinicopathologic factors and medication type. Results: The total sample was comprised of 572 women (410 White and 162 Black). For the unadjusted model, the race by time interaction was not statistically significant (F3, 1002.53= 2.2895, p = 0.077). However, the race by time interaction was statistically significant in the adjusted model (F3, 670.99 = 2.68, p = 0.04576), such that Black survivors experienced increased distress over time compared to White survivors. Age was the only statistically significant covariate as older women had lower distress compared to their younger counterparts (p= 0.01) Conclusion. Black and White HR+ breast cancer survivors had different distress levels over a 3-year period. Over time Black survivors’ distress remained high compared to their White counterparts. It is important to consider these differences, given that Black women have higher breast cancer related morbidity and mortality. Future work should focus on the development of culturally appropriate interventions for distress management in HR+ Black breast cancer survivors. Citation Format: Fariha Tariq, Teletia Taylor, Robert A. Perera, Vanessa B. Sheppard. Racial differences in distress levels among Black and White hormone receptor–positive breast cancer survivors over a 3-year period [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr C020.

Abstract B072: Reproducibility of plasma metabolome over 1 year in a population-based study of Black breast cancer survivors

Abstract Background: African American/Black women have higher rates of breast cancer (BrCa) mortality and morbidity than White women. The metabolomics approach using blood samples from epidemiological studies has the potential to elucidate pathways or uncover biomarkers for adverse BrCa outcomes. Therefore, understanding the within-person reproducibility of the blood metabolome of BrCa survivors and factors that influence metabolite levels over time is crucial. However, the stability of blood metabolome among Black BrCa survivors is unknown. Objective: This study aimed to estimate the within-person reproducibility of metabolites over 1 year via global untargeted metabolomic profiling of plasma samples collected in the Women’s Circle of Health Follow-Up Study (WCHFS), a population-based longitudinal study of Black BrCa survivors in New Jersey. The study also aims to identify factors associated with reproducibility. Methods: We estimated the metabolite reproducibility among 61 Black women with BrCa diagnosed between 2012 and 2017 in WCHFS. Plasma samples were collected once for each participant at ~2 and 3 years post-diagnosis, respectively, and analyzed at Metabolon via ultrahigh performance liquid chromatography-tandem mass spectrometry. Using a mixed-effects model, we calculated the intraclass correlation coefficients (ICC) for each metabolite by dividing the between-person variance by the total variance (i.e., within- and between-person variances). ICCs were compared by age, obesity status, estrogen receptor (ER) status, and seasons, fasting status and time interval between two visits when blood samples were collected. Statistical significance was determined using the Wilcoxon test. Results: Of the 857 named metabolites identified after excluding those undetectable in ≥80% of samples or with a coefficient of variance≥0.25, the median ICC was 0.58 (interquartile range [IQR]: 0.44-0.70). 16.6% had high within-person reproducibility (ICC≥0.75), spanning across all metabolite classes, while 65.6% had an ICC within 0.4-0.75, and the remaining 17.9% had an ICC<0.4. Significant differences in ICCs were noted by participants’ age (median ICC [IQR; same below]: 0.56 [0.40 - 0.68] for younger women, i.e. ≤ 55.6 years vs. 0.61 [0.44 - 0.73] for older women), obesity status (0.55 [0.40 - 0.68] for non-obese vs. 0.62 [0.46 - 0.75] for obese), and ER status (0.56 [0.41 - 0.68] for ER+ vs. 0.62 [0.45 - 0.79] for ER-). The reproducibility also differed by fasting status (0.63 [0.45 - 0.77] for fasting vs. 0.53 [0.39 - 0.67] for non-fasting), but not the seasons or time interval between blood collections. Conclusion: The within-person reproducibility of plasma metabolites over 1 year among Black breast cancer survivors was generally reasonable, suggesting a single-time-point measurement could be useful in evaluating associations between metabolites and BrCa outcomes. However, the reproducibility varied across metabolites and was influenced by participant characteristics and certain sample collection conditions, which need consideration in future analysis or design.   Citation Format: Bo Qin, Madhir Vyas, Steven C. Moore, Xiaoyang Su, Eileen White, Christine B. Ambrosone, Kitaw Demissie, Chi-Chen Hong, Elisa V. Bandera. Reproducibility of plasma metabolome over 1 year in a population-based study of Black breast cancer survivors [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr B072.

Abstract B144: Associations between experiences of discrimination and quality of life in a cohort of Black/African American breast cancer survivors

Abstract Introduction: Racism and discrimination have been associated with poorer mental and physical health, and decreased health-related quality of life (QoL) in the general population, however; there are limited studies examining the impact of discrimination in cancer survivors. We examined the relationship between experiences of discrimination and QoL in Black women diagnosed with breast cancer.  Methods: Data were obtained from women enrolled in the Women’s Circle of Health Follow-up Study, a population-based cohort study of Black breast cancer survivors in New Jersey, enrolled within 10 months of diagnosis. Women included in these analyses were diagnosed between 2015-2019. Self-reported experiences of discrimination along with information on potential covariates and effect modifiers were collected during baseline in-person interviews. QoL was assessed at follow-up visits approximately 24 months post-diagnosis using a validated self-reported QoL of measure, the Functional Assessment of Cancer Therapy – Breast (FACT-B), which consists of 5 individual domains (emotional, functional, social/family, and physical wellbeing, as well as a disease specific domain for breast cancer). We examined the association of experiences of discrimination (none, low (<median 43%), high (≥ median 43%)) with continuous total QoL score using linear regression, adjusted for age at diagnosis, tumor stage, educational attainment, household income, smoking status, insurance, and body mass index. We also examined statistical interaction by neighborhood socioeconomic index (nSES), coping strategy (assessed using the Brief Resilient Coping Scale), and spirituality (assessed using the Functional Assessment of Chronic Illness Therapy - Spiritual Well-Being (FACIT-Sp-12) scale) using cross-product terms with experiences of discrimination. Results: Of 220 study participants, 73% of participants reported experiencing any discrimination. In age adjusted models, women who reported the highest experiences of discrimination had lower QoL for overall FACT-B scores and the subscale scores (no discrimination, mean overall FACT-B:117.7, 95% confidence interval (CI): 112.4, 122.9; high discrimination, mean overall FACT-B: 106.8, 95% CI: 102.1, 111.5). Similar associations were observed in fully adjusted models, where women who reported the highest experiences of discrimination had lower QoL. For example, for women who reported no discrimination the mean overall FACT-B score was 114.7 (95% CI: 107.9, 121.4) and 100.8 (95% CI: 94.2, 107.5) for women who reported the highest level of discrimination. No evidence of statistically significant interaction was observed for nSES, spirituality, or coping strategy. Conclusions: In a population-based study of Black breast cancer survivors, experiences of discrimination were associated with poorer QoL, as measured by FACT-B. Citation Format: Nur Zeinomar, Marley M. Perlstein, Bo Qin, Hari S. Iyer, Jesse J. Plascak, Christine B. Ambrosone, Kitaw Demissie, Chi-Chen Hong, Elisa V. Bandera. Associations between experiences of discrimination and quality of life in a cohort of Black/African American breast cancer survivors [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr B144.

Exploring Quality of Life Experiences and Concerns of Black Breast Cancer Survivors: a Narrative Approach.

Black breast cancer survivors (BCS) in comparison with White BCS are more likely to experience suboptimal quality of life (QoL). QoL is a multi-dimensional concept that focuses on different aspects of well-being (e.g., emotional well-being). There is limited evidence on the perspectives and experiences of QoL (e.g., theinfluence of breast cancer on QoL) and the QoL concerns (e.g., negative perceptions of body appearance) among Black BCS. The purpose of this study was to explore the QoL experiences and QoL concerns ofBlack BCS. Primary data was collected in semi-structured interviews and analyzed using a thematic analysis. A narrative approach (detailed stories or life experiences of a small group of people) was used to better understand the research topic among the target group. Ferrell's Conceptual Framework on QoL in Breast Cancer was used to guide the development of the interview questions, codes, and themes. There were 10 Black BCS, averaging 58years of age. Two coders achieved a moderate level of agreement (i.e., Kappa) of 0.77. Five major themes were identified: defining QoL (what QoL means to them), behavioral changes (e.g., altering behaviors due to cancer), phases of cancer (e.g., breast cancer diagnosis), QoL experiences and factors affecting QoL, and impactful statements from cancer survivors (other meaningful information shared by the participants). The survivors reported multiple QoL concerns and body image issues. The study findings warrant cancer education interventions or programs to address the relevant survivorship issues of Black BCS.

Breast cancer survivorship experiences among Black women.

Black women experience significant disparities in breast cancer across the care continuum, including survivorship. Ensuring that Black women obtain high-quality follow-up care is critical but understudied. This study was aimed at understanding the experiences and needs of Black women during breast cancer survivorship. Black patients diagnosed with invasive breast cancer within the past 5years were invited to participate in a focus group and complete a survey. Focus groups examined the following: (1) the transition from active treatment to survivorship; (2) interactions with health care providers; (3) survivorship experiences, information needs, and preferences; and (4) existing educational materials. Results were thematically coded and analyzed for main themes. Surveys collected information on sociodemographics, health care experiences, quality of life, lifestyle, and education needs. The study enrolled 53 participants, 43 of whom completed a survey and participated in one of 11 focus groups. The median age was 54 years, 44% had private insurance, 81% were English speaking, and 86% had completed their treatment more than a year before. Participants identified the importance of relationships with health care providers, gaps in survivorship care, experiences with cancer-related symptoms, challenges with mental health, worry about recurrence, body image, cancer financial toxicity, and coping through religion and spirituality. Unmet needs were centered around preparation for long-term symptoms, diet and physical activity, emotional support, and more explanations of information resources. Participants reported preferences for educational videos, personal stories, and culturally relevant content. Some Black breast cancer survivors may have specific challenges and preferences. Supportive interventions that address these concerns can be responsive and help to ameliorate disparities.

Neighborhood Disadvantage, African Genetic Ancestry, Cancer Subtype, and Mortality Among Breast Cancer Survivors.

Racial disparities in breast cancer (BC) survival arise from multilevel causes, which may exert influence at different stages of BC progression. Clarifying the importance of genetic and social factors could help prioritize interventions. To jointly examine associations between African genetic ancestry, social environment, and mortality from any cause and BC in Black BC survivors. This population-based cohort study enrolled self-identified Black women aged 20 to 75 years with histologically confirmed BC from June 2005 to May 2019 and followed them up until death or censoring in September 2021. Participants lived in 10 New Jersey counties. Data were analyzed between December 2022 and April 2023. A neighborhood socioeconomic status (nSES) index composed of census tract measures (education, income, wealth, employment status, and occupation) was linked to residential addresses at diagnosis. Percentage African ancestry was estimated using the ADMIXTURE program. Sequentially adjusted (age adjusted: age and interview year; fully adjusted: age adjusted with individual SES, lifestyle factors, and comorbidities) logistic regression models were fit to estimate associations with tumor subtypes (estrogen receptor-negative [ER-] vs estrogen receptor-positive [ER+]; triple-negative breast cancer [TNBC] vs luminal A), and Cox models were fit for associations with all-cause mortality (ACM) and breast cancer-specific mortality (BCSM). Models for BCSM were fit using Fine-Gray competing risks models, and robust standard errors were used to account for census tract-level clustering. Among 1575 participants, median (IQR) African ancestry was 85% (76%-90%), and median (IQR) age was 55 (46-63) years. A 10-percentage point increase in African ancestry was associated with higher odds of ER- vs ER+ (adjusted odds ratio [aOR], 1.08; 95% CI, 0.98-1.18) and TNBC vs luminal (aOR, 1.15; 95% CI, 1.02-1.31) tumors, but not with ACM or BCSM. A 1-IQR increase in nSES was associated with lower ACM (adjusted hazard ratio [aHR], 0.76; 95% CI, 0.63-0.93), and the HR for BCSM was less than 1 but not statistically significant (aHR, 0.81; 95% CI, 0.62-1.04) in age-adjusted models, but associations attenuated following further adjustment for potential mediators (individual SES, lifestyles, comorbidities). In this cohort study of Black female BC survivors, higher African ancestry was associated with aggressive tumor subtypes. Compared with genetic ancestry, mediating pathways related to social environments may be more important for survival in these patients.

Racial disparities in aging-related comorbidity among breast cancer survivors.

10555 Background: Black breast cancer (BC) patients have a higher mortality rate than their white counterparts, potentially due to age acceleration caused by cancer and its treatments. However, epidemiological evidence is limited. Methods: Our study includes 1885 BC patients and 1224 cancer free women (controls) recruited at Vanderbilt University Medical Center from 2004 to 2021. Patient demographics and aging-related outcomes were extracted from the tumor registry or electronic health records. Aging-related outcomes included 28 comorbidities and the Charlson Comorbidity Index (CCI) at baseline (biopsy) and follow-up (latest clinical visit). The associations of BC status with CCI and specific comorbidities were evaluated by linear and logistic regression models, respectively. The associations of race with aging-related outcomes were evaluated among cases. All analyses were adjusted for age, and follow-up outcomes were adjusted for baseline information. Results: The median follow-up time is 10 years. BC patients had a higher mean CCI at baseline (1.32 vs 0.59, p<0.01) and follow-up (beta=1.04, 95% CI=0.94-1.14) than controls. Results from individual comorbidities showed that BC survivors had a higher risk of developing cardiovascular disease, liver disease, hypertension, hyperlipidemia, gastroesophageal reflux disease (GERD), and depression. Among BC patients, Black women were diagnosed at a younger age (52.0 vs 55.8, p<0.01), but had a higher baseline and follow-up CCI than Whites. Black BC survivors were more likely to develop peptic ulcer disease, diabetes, second malignancy, hypertension, and GERD than White BC survivors, even after adjustment for baseline comorbidities. [Table: see text]

Designing a Dyad-Based Digital Health Intervention to Reduce Sedentary Time in Black Breast Cancer Survivors and Their First-degree Relatives: Human-Centered Design Study.

Breast cancer, the most commonly diagnosed cancer and second leading cause of cancer-related death in women in the United States, disproportionately affects women from minoritized or low socioeconomic backgrounds. The average woman has an approximately 12% lifetime risk of developing breast cancer. Lifetime risk nearly doubles if a woman has a first-degree relative with breast cancer, and the risk increases as multiple family members are affected. Decreasing sedentary behaviors through moving more and sitting less reduces breast cancer risk and improves outcomes for cancer survivors and healthy adults. Digital health solutions, such as mobile apps that are culturally appropriate, designed with input from the target audience, and include social support, are effective at improving health behaviors. This study aimed to develop and evaluate the usability and acceptability of a prototype app designed with a human-centered approach to promote moving more and sitting less in Black breast cancer survivors and their first-degree relatives (parent, child, or sibling). This 3-phase study consisted of app development, user testing, and evaluation of user engagement and usability. Key community stakeholders were engaged in the first 2 (qualitative) phases to provide input into developing the prototype app (MoveTogether). After development and user testing, a usability pilot was conducted. Participants were adult breast cancer survivors who identified as Black and agreed to participate with a relative. Participants used the app and a step-tracking watch for 4 weeks. App components included goal setting and reporting, reminders, dyad messaging, and educational resources. Usability and acceptability were assessed with a questionnaire that included the System Usability Scale (SUS) and semistructured interviews. Data were analyzed with descriptive statistics and content analysis. Participants in the usability pilot (n=10) were aged 30 to 50 years (6/10, 60%), not married (8/10, 80%), and college graduates (5/10, 50%). The app was used on average 20.2 (SD 8.9) out of 28 days-SUS score of 72 (range 55-95)-and 70% (7/10) agreed that the app was acceptable, helpful, and gave them new ideas. Additionally, 90% (9/10) found the dyad component helpful and would recommend the app to friends. Qualitative findings suggest that the goal-setting feature was helpful and that the dyad partner (buddy) provided accountability. Participants were neutral regarding the cultural appropriateness of the app. The MoveTogether app and related components were acceptable for promoting moving more in dyads of breast cancer survivors and their first-degree relatives. The human-centered approach, which involved engaging community members in the development, is a model for future technology development work. Future work should be done to further develop the intervention based on the findings and then test its efficacy to improve sedentary behavior while considering culturally informed strategies for adoption and implementation within the community. ClinicalTrials.gov NCT05011279; https://clinicaltrials.gov/ct2/show/NCT05011279.

"I'm Fighting for My Life": Exploring Interactions Between Black Women with Breast Cancer and Healthcare Providers.

Black Americans face a multitude of problems in the healthcare system, including challenges during interactions with healthcare providers. The present study examined the quality of healthcare provider-Black patient interactions in a sample of Black American women with a breast cancer diagnosis. More specifically, the study examined potential contributors to Black Americans' current healthcare experiences and lack of trust by identifying their specific negative and positive encounters in the healthcare system. Three in-person Gatherings (i.e., culturally curated focus groups; N = 37) were conducted as part of a community-academic research partnership, Project SOAR (Speaking Our African American Realities). Four themes were identified through reflexive thematic analysis: Individual and Systemic Injustice Directed at Black Breast Cancer Survivors; Protecting Myself from an Untrustworthy Medical System; Stereotypes Interfered with My Care; and Good Care Should Include Compassion, Respect, Shared Decision Making, and Tailored Support. The present findings highlight the importance of addressing systemic and individual injustice toward Black Americans in healthcare settings generally, and Black women diagnosed with breast cancer specifically.