Disparities In Clinical Outcomes Research Articles

Racial, Ethnic, and Socioeconomic Disparities in Pediatric Aquaporin-4-Positive Neuromyelitis Optica Spectrum Disorder

BackgroundOnly 5% of aquaporin-4-positive neuromyelitis optica spectrum disorder (AQP4+ NMOSD) cases emerge during childhood. Poorer outcomes have been suggested in black/African American (AA) adults with NMOSD; however, conflicting and limited data exist for pediatric-onset NMOSD. This study evaluates racial, ethnic, and socioeconomic disparities in pediatric AQP4+ NMOSD outcomes. MethodsThirty-eight pediatric patients with AQP4+ NMOSD cared for at three pediatric tertiary care centers between 2009 and 2021 were identified. Patient addresses connected to socioeconomic measures available from the US Census. Demographic characteristics, pertinent clinical outcomes, and health care utilization in the two years following diagnosis were captured. ResultsCompared with non-Hispanic White children, Black/AA children had a significantly higher Expanded Disability Status Scale (EDSS) (2.46 vs 0.33, P = 0.003), 2.37 more hospital admissions (P = 0.002), and 28.40 additional inpatient days (P = 0.002) in the two years following their NMOSD diagnosis. Additionally, children with public insurance had higher relapse rates than those with private insurance (P = 0.046). At two years and at the most recent follow-up, a significantly higher EDSS was correlated with children living in census tracts with a lower median income, higher deprivation index, and higher proportion of population on assisted income, in poverty, and with vacant housing (all P < 0.05). ConclusionsWe identified racial, ethnic, and socioeconomic disparities in clinical outcomes and health care utilization in pediatric AQP4+ NMOSD. Further prospective and household-level data are needed to dissect the interplay of genetics, structural racism, and social determinants of health so that interventions to optimize care and outcomes for this population may be developed.

Exploring Rural-Urban Differences in the Receipt of Nonelective Cancer-specific Gastrointestinal Surgery Using a Multilevel Mixed-Effects Approach

BackgroundRural communities constitute a populace marked by various social challenges influencing health outcomes. As such, nonelective surgeries for cancer may have a disproportionate impact on rural populations. We explored patient and county-level factors contributing to differences in the receipt of nonelective cancer-specific surgery between rural and urban residents. MethodsThis retrospective study included adult patients captured in the SEER-Medicare data between January 2008 and December 2015 with an incident stage I-IV cancer of the stomach, liver/intrahepatic bile duct, pancreas, gallbladder/other biliary origin, or small intestine who underwent a cancer-specific surgery. The primary outcome was nonelective cancer-directed surgery among rural versus urban residents. We conducted a multivariable mixed-effects logistic regression model to adjust for confounders while accounting for county-level clustering. ResultsThe sample included 10,136 patients who underwent a surgical intervention; 2,941 (29%) were nonelective. The incidence of nonelective surgery was lower among rural compared tourban patients [351 (27%) and 2590(29%); p= 0.05]. There was no statistically significant difference in the unadjusted and adjusted odds of nonelective surgery between rural and urban residents [OR 0.88, 95% CI (0.76-1.03); p= 0.11] and [aOR 0.86, 95% CI (0.72-1.02); p= 0.080]. Additionally, high social vulnerability index counties or Black race was significantly associated with increase odds of nonelective surgery [aOR 1.33, 95% CI (1.07-1.65); p=0.009] and [aOR 1.49, 95% CI (1.26-1.77); p<0.0001], respectively. ConclusionThis study found no difference in the odds of receiving nonelective surgery for GI foregut cancers between rural and urban populations. However, Black race and high SVI were associated with higher odds of the receipt of nonelective surgery. Further research is warranted to explore if disparities in clinical outcomes exist despite the comparable likelihood of receiving nonelective surgery between rural and urban communities.

Associations between language, telehealth, and clinical outcomes in patients with cancer during the COVID-19 pandemic.

The COVID-19 pandemic prompted a surge in telehealth utilization. However, language barriers have emerged as a potential obstacle to effective telemedicine engagement, impacting millions of limited English proficient (LEP) individuals. Understanding the role of language spoken in telehealth outcomes is critical, particularly in cancer care, in which consistent follow-up and communication are vital. The primary objective was to assess the impact of telehealth utilization and primary language spoken on clinical outcomes in cancer patients. This study utilized a retrospective cohort design, encompassing cancer patients seen at the Chao Family Comprehensive Cancer Center between March 1, 2020, and December 31, 2022. The study incorporated both in-person and telehealth visits, examining the association between encounter type and clinical outcomes. The study included 7890 patients with more than one outpatient visit during the study period. There was decreased telehealth utilization in non-English speaking cancer patients throughout the pandemic. Increased telehealth utilization was associated with higher rates of admission, irrespective of cancer type. Additionally, telehealth visits were associated with longer duration of subsequent admissions compared to in-person visits. Spanish-speaking patients utilizing telehealth had higher rates of re-admission compared to English speakers utilizing telehealth. Patients who died had higher rates of telehealth utilization compared to patients who survived. This study demonstrates that primary language spoken is associated with differences in telehealth utilization and associated outcomes in cancer patients. These differences suggest that the interplay of telehealth and language could contribute to widening of disparities in clinical outcomes in these populations. The study underscores the need to optimize telehealth usage and minimize its limitations to enhance the quality of cancer care in a telehealth-driven era.

Racial and ethnic disparities in clinical outcomes among patients with takotsubo syndrome; A nation-wide analysis

BackgroundTakotsubo syndrome (TTS), a stress-induced transient left ventricular dysfunction, remains poorly understood, with an estimated incidence of 1–2 % among acute coronary syndrome cases. This study investigates racial and ethnic disparities in hospital outcomes and clinical characteristics of TTS. MethodsWe conducted a retrospective cohort study using the National Inpatient Sample data from 2016 to 2020, identifying TTS cases through validated ICD-10 codes. Statistical analysis was performed using Stata 18, with logistic regression models adjusting for confounders to identify disparities in outcomes. ResultsThe study included 32,785 TTS hospitalizations; the majority were White (80.5 %), followed by Black (6.7 %) and Hispanic (5.8 %) patients. Minority groups, mainly Black and Hispanic patients, were younger (average age 63) and predominantly from lower-income brackets, while Asians had the highest income bracket. Length of stay (5.1 days) and Total cost ($22,707.60) were highest among Native Americans. Notable findings include Black patients showing the highest rate of stroke (4.8 %, OR 2.1, 95 % CI 1.2 to 3.4, p = 0.003). The rate of cardiogenic shock was highest among Asians (11 %, OR 2, 95 % CI 1.5 to 2.5, p < 0.001). Mortality rates were elevated in Black (2 %, OR 1.5, 95 % CI 1.3 to 1.7 p < 0.001) and Asian populations (1.8 %, OR 1.97, 95 % CI 1.5 to 2.5, p < 0.001). ConclusionSignificant racial and ethnic disparities exist in TTS outcomes, with minority groups having more in-hospital outcomes. These findings highlight the urgent need for targeted interventions and further research to reduce healthcare inequities in TTS management.

Sex differences outcomes in conduction system pacing for patients with typical left bundle branch block

BackgroundBiventricular pacing (BVP) appears to confer more pronounced advantages in women, yet the impact of conduction system pacing (CSP) remains insufficiently characterized. This investigation seeks to elucidate sex-specific disparities in clinical outcomes among patients with typical left bundle branch block (LBBB) undergoing CSP, with a particular focus on assessing contributory factors. MethodsConsecutive patients diagnosed with nonischemic cardiomyopathy, exhibiting left ventricular ejection fraction (LVEF) ≤ 40%, and manifesting typical LBBB as Strauss criteria, underwent CSP. Subsequent longitudinal monitoring assessed improvements in LVEF and the composite endpoint of mortality or heart failure hospitalization (HFH). ResultsAmong the included 176 patients, women (n = 84, mean age: 69.5 ± 8.8 years) displayed smaller heart size (LVEDd, 62.0 ± 8.3 mm vs. 64.8 ± 7.9 mm, P = 0.023) and shorter baseline QRSd (163.5 ± 17.7 ms vs. 169.7 ± 15.1 ms; P = 0.013) than men. Of the 171 patients who completed the follow-up, super-response was observed in 120 (70%), with a higher occurrence in women than men (78.3% vs. 62.5%, P = 0.024). The incidence of death or HFH was numerically lower in women (7.1% Vs 13%, Log-rank P = 0.216). Notably, the super-response showed a significant difference in women compared to men at the same electrocardiography and/or echocardiographic parameters value. Mediation analysis between sex and super-response revealed that LVEDd and pQRSd play an intermediary role, with the mediation proportion of 26.07% and 27.98%, respectively. ConclusionsWomen may derive more benefits from CSP, and pQRSd and LVEDd partly drive this difference.

Racial and Ethnic Disparities in Emergency General Surgery Outcomes Among Older Adult Patients

IntroductionRacial and ethnic disparities in emergency general surgery (EGS) patients have been well described in the literature. Nonetheless, the burden of these disparities, specifically within the more vulnerable older adult population, is relatively unknown. This study aims to investigate racial and ethnic disparities in clinical outcomes among older adult patients undergoing EGS. MethodsThis retrospective analysis used data from 2013 to 2019 American College of Surgeons National Surgery Quality Improvement Program database. EGS patients aged 65 y or older were included. Patients were categorized based on their self-reported race and ethnicity. The primary outcomes evaluated were in-hospital mortality, 30-d mortality, and overall morbidity. Multivariable logistic regression was performed to examine the relationship between race/ethnicity and postoperative outcomes while adjusting for relevant factors including age, comorbidities, functional status, preoperative conditions, and surgical procedure. ResultsA total of 54,132 patients were included, of whom 79.8% identified as non-Hispanic White, 9.5% as non-Hispanic Black (NHB), 5.8% as Hispanic, and 4.2% as non-Hispanic Asian. After risk adjustment, compared to non-Hispanic White patients, NHB, non-Hispanic Asian, and Hispanic patients had decreased odds of 30-d mortality. For 30-d readmission and reoperation, differences among groups were comparable. However, NHB patients had significantly increased odds of overall morbidity (adjusted odds ratio, 1.18; 95% confidence interval: 1.10-1.26; P < 0.001) and postoperative complications including sepsis, venous thromboembolism, and unplanned intubation. Hispanic ethnicity was associated with lower odds of postoperative myocardial infarction and stroke. ConclusionsAmong older adult patients undergoing emergency general surgery, minority patients experienced higher morbidity rates, but paradoxical disparities in mortality were detected. Further research is necessary to identify the cause of these disparities and develop targeted interventions to eliminate them.

Comparison of clinical outcomes and complications of biportal and uniportal endoscopic decompression for the treatment of cervical spondylotic radiculopathy: A systematic review and meta-analysis.

This study aimed to compare the clinical efficacy and complication rates of decompression with unilateral biportal endoscopy (UBE) and percutaneous endoscopy (PE) in cervical spondylotic radiculopathy (CSR). A comprehensive literature review was conducted up to April 2024 across multiple databases, including EMBASE, PubMed, Cochrane Library, China National Knowledge Infrastructure, and Wanfang Data, focusing on clinical studies that compare UBE with PE for posterior foraminotomy and discectomy decompression in CSR. The meta-analysis was performed with an emphasis on evaluating clinical outcomes such as operation time, blood loss, incision length, Neck Disability Index (NDI), Visual Analog Scale (VAS) for neck pain and arm pain, and complications. Out of an initial 1,041 studies identified from electronic databases, eight were deemed eligible based on title, abstract, and full-text screening. These studies involved 552 patients (269 males, 283 females; mean age: 53.9±11.4 years; range, 30 to 79 years), with 287 in the UBE group and 265 in the PE group. Meta-analysis indicated no significant difference in operation time between UBE and PE (mean difference [MD]=-3.68; 95% confidence interval [CI]:-19.38, 12.02; p=0.65). However, both blood loss (MD=17.01; 95% CI: 2.61, 31.41; p=0.02) and incision length (MD=11.62; 95% CI: 9.23, 14.01; p<0.00001) were significantly lower in the PE group compared to the UBE group. Regarding clinical outcomes, no significant differences were observed between the two groups in terms of NDI (MD=0.12; 95% CI:-0.10, 0.34; 0.28), VAS for neck pain (MD=-0.06; 95% CI:-0.19, 0.06; p=0.32), VAS for arm pain (MD=-0.14; 95% CI:-0.26, -0.01; p=0.84), or complications (OR=1.07; 95% CI: 0.54, 2.10; p=0.85). Our findings suggest that there are no significant disparities in clinical outcomes between UBE and PE, encompassing NDI, VAS for arm pain, and VAS for neck pain, as well as complication rates. Notably, compared to PE, UBE results in increased bleeding and longer incision lengths when treating CSR, without substantially reducing operation time.

Nationwide analysis of patients with ovarian cancer: Racial status and risk of metastasis.

124 Background: Literature review has found profound disparities in clinical outcomes, for patient with ovarian cancer. Metastasis is the primary cause of cancer morbidity and mortality. However, data on the metastasis risks on hospitalized individuals with ovarian cancer is still limited. Therefore, we aim to assess the association between metastatic ovarian cancer and racial differences using large database analysis. Methods: We analyzed the 2020 U.S. National Inpatient Sample (NIS) to explore patients who have ovarian cancer as the primary diagnosis. Additionally, we identified evidence of metastasis, as recorded by ICD-10-CM. Adjusted odds ratios (aORs) for specified outcomes were calculated through multivariable logistic and linear regression analyses. The primary outcome was racial differences in organ metastasis and secondary outcomes included mortality and length of stay. Statistical significance was established at p-value of 0.05. Results: We identified 19,789 patients with primary diagnosis of ovarian cancer at discharge. The mean age was 61.6 years. Caucasians accounted for 68.3%, with Hispanics at 11.1 % and African Americans at 9.7%. We found that 7% of the patients had liver metastasis. In a multivariate analysis adjusting for patient, COVID-19, chemotherapy usage and hospital factors, African Americans and Hispanics had higher risk of liver metastasis (aOR 1.95; 95%CI (1.32, 2.88), p = 0.001) (aOR 1.78; 95%CI (1.19, 2.66), p = 0.004). We also observed reduced length of stay for Asian Americans (b = -0.74; 95%CI (-1.31, -0.17), p = 0.011). We observed an increase in risk of metastasis and mortality but non-statistically significant in some parameters and races, as shown in table provided. Conclusions: In conclusion, our study revealed that racial difference is associated with higher risk of metastasis, as well as other outcomes. More studies following patients over time are needed to determine if race directly affects how ovarian cancer spreads and other clinical outcomes. [Table: see text]

Racial Disparities in Clinical Outcomes of Takotsubo Cardiomyopathy: An Analysis of the National Inpatient Sample 2006 to 2018.

This study aimed to evaluate the impact of race on in-hospital outcomes of Takotsubo cardiomyopathy using the National Inpatient Sample. We conducted a retrospective study using data from the National Inpatient Sample database 2006 to 2018. We focused on Takotsubo cardiomyopathy hospitalizations, excluding those with acute coronary syndrome as the primary diagnosis. Two study groups consisted of White patients or Black patients. Univariate and multivariable logistic models evaluated race's effect on death, cardiac arrest, cardiogenic shock, length of stay, while adjusting for potential confounders. The Bayesian model averaging technique was used to further elucidate the factors influencing death within each racial group. Significant differences were observed between the 2 racial groups. Black patients presented at a younger age, had a higher proportion of men, a higher burden of comorbidities, and a lower median household income compared with their White counterparts. In the univariate model, the Black cohort showed an increased risk of cardiac arrest (odds ratio, 1.45 [95% CI, 1.15-1.82]). However, the difference did not reach statistical significance in the multivariable model. Black patients also had a significantly longer hospital stay in both the univariate model (risk ratio, 1.26 [95% CI, 1.22-1.31]) and the multivariable model (risk ratio, 1.06 [95% CI, 1.04-1.07]). No significant difference in all-cause death was observed between the racial groups. The outcome differences between 2 racial groups in our study are likely influenced by racial disparities in demographics, comorbidities, and socioeconomic factors. Individualized care based on racial group needs is crucial in clinical practice.

Persistent income-based disparities in clinical outcomes of cardiac surgery across the United States: A contemporary appraisal

ObjectiveAlthough national efforts have aimed to improve the safety of inpatient operations, income-based inequities in surgical outcomes persist, and the evolution of such disparities has not been examined in the contemporary setting. We sought to examine the association of community-level household income with acute outcomes of cardiac procedures over the past decade. MethodsAll adult hospitalizations for elective coronary artery bypass grafting/valve operations were tabulated from the 2010-2020 Nationwide Readmissions Database. Patients were stratified into quartiles of income, with records in the 76th to 100th percentile designated as highest and those in the 0 to 25th percentile as lowest. To evaluate the change in adjusted risk of in-hospital mortality, complications, and readmission over the study period, estimates were generated for each income level and year. ResultsOf approximately 1,848,755 hospitalizations, 406,216 patients (22.0%) were classified as highest income and 451,988 patients (24.4%) were classified as lowest income. After risk adjustment, lowest income remained associated with greater likelihood of in-hospital mortality (adjusted odds ratio, 1.61, 95% CI, 1.51-1.72), any postoperative complication (adjusted odds ratio, 1.19, CI, 1.15-1.22), and nonelective readmission within 30 days (adjusted odds ratio, 1.07, CI, 1.05-1.10). Overall adjusted risk of mortality, complications, and nonelective readmission decreased for both groups from 2010 to 2020 (P < .001). Further, the difference in risk of mortality between patients of lowest and highest income decreased by 0.2%, whereas the difference in risk of major complications declined by 0.5% (both P < .001). ConclusionsAlthough overall in-hospital mortality and complication rates have declined, low-income patients continue to face greater postoperative risk. Novel interventions are needed to address continued income-based disparities and ensure equitable surgical outcomes.

CO121 Evaluating Disparities in Clinical Outcomes Among Medicare Beneficiaries With Peripheral Artery Disease (PAD): A Call To Action for Health Equity

CO121 Evaluating Disparities in Clinical Outcomes Among Medicare Beneficiaries With Peripheral Artery Disease (PAD): A Call To Action for Health Equity

Increased disease severity during COVID-19 related hospitalization in black non-hispanic, hispanic and medicaid-insured young children.

The COVID-19 pandemic has disproportionately affected marginalized groups in the United States. Although most children have mild or asymptomatic COVID-19, some experience severe disease and long-term complications. However, few studies have examined health disparities in severe COVID-19 outcomes among US children. To examine disparities in the clinical outcomes of infants and children aged <5 years hospitalized with COVID-19 by race/ethnicity and payer status. Children aged <5 years hospitalized with an admission diagnosis of COVID-19 (April 2021-February 2023) were selected from the PINC AI™ Healthcare Database. Hospital outcomes included length of stay (LOS), intensive care unit (ICU) admission, oxygen supplementation, invasive mechanical ventilation (IMV), and prolonged duration of each outcome. Multivariable logistic regression models compared hospitalization outcomes by race/ethnicity and payer status. Among 10,190 children (mean age: 0.9 years, 56.5% male, 66.7% Medicaid-insured), race/ethnicity was distributed as follows: White non-Hispanic (35.1%), Hispanic (any or Unknown race; 28.3%), Black non-Hispanic (15.2%), Other race/ethnicity (8.9%) and Unknown (12.5%). Payer status varied by race/ethnicity. White non-Hispanic children had the highest proportion with commercial insurance (42.9%) while other racial/ethnic groups ranged between 13.8% to 26.1%. Black non-Hispanic children had the highest proportion with Medicaid (82.3%) followed by Hispanic children (76.9%). Black non-Hispanic children had higher odds of prolonged outcomes: LOS (adjusted odds ratio [aOR] = 1.20, 95% confidence interval [CI]:1.05-1.38), ICU days (aOR = 1.44, 95% CI: 1.07-1.93), and IMV days (aOR = 1.80, 95% CI: 1.09-2.97) compared to White non-Hispanic children. Similar patterns were observed for Hispanic and children of Other race/ethnicity. Medicaid-insured and children with other insurance had higher odds of prolonged LOS and oxygen days than commercially insured patients. There were disparities in clinical outcomes of COVID-19 by race/ethnicity and insurance type, particularly for prolonged-duration outcomes. Further research is required to fully comprehend the causes and consequences of these disparities and develop strategies to reduce them while ensuring equitable healthcare delivery.

Diminished vibration perception and greater pressure pain sensitivity are associated with worse knee osteoarthritis outcomes across sex and race

ObjectiveTo examine associations of vibration sensitivity and pressure pain sensitivity with knee osteoarthritis (OA) outcomes across sex and race, which may relate to known sex and race disparities in clinical outcomes. DesignData were from the 2013-2015 visit of the Johnston County Osteoarthritis Project. Exposures were vibration perception threshold (VPT) measured at the bilateral medial femoral condyle (MFC) and first metatarsophalangeal joint (MTP), and pressure pain threshold (PPT) measured at the bilateral upper trapezius. Outcomes were knee pain severity and presence of knee symptoms, radiographic knee OA, and symptomatic knee OA in each knee. Cross-sectional associations of the exposures with the outcomes were examined using logistic regression models, overall and separately by sex and race. ResultsIn the VPT and PPT analyses, 851 and 862 participants (mean age 71 years, 68% female, 33% Black, body mass index 31 kg/m2) and 1585 and 1660 knees were included, respectively. Higher VPT (lower vibration sensitivity) at the MFC and first MTP joint was associated with all outcomes. Lower PPT (greater pressure pain sensitivity) was associated with greater knee pain severity. Associations of VPT and PPT with all outcomes were similar among females and males and Black and White individuals. ConclusionsDiminished vibration perception and greater pressure pain sensitivity were cross-sectionally associated with worse knee OA outcomes. Despite differences in VPT and PPT among females and males and Black and White adults, associations with knee OA outcomes did not differ by sex or race, suggesting neurophysiological differences do not relate to established disparities.

Socioeconomic disparities in survival outcomes of patients with NSCLC with brain metastases: A real-world analysis.

8569 Background: Racial and ethnic disparities have been previously reported in outcomes of metastatic cancer patients. While novel therapies have improved outcomes of NSCLC patients with brain metastases (BM), however, barriers to therapy persist, warranting updated evaluations of socioeconomic disparities in clinical outcomes. Methods: A retrospective cohort study was conducted on patients diagnosed with NSCLC BM in 2018-2020 in the National Cancer Database. Patients were classified as White, Black, American Indian, Aleutian or Pacific Islander (AAPI), or Asian. Sociodemographic and clinical outcomes were analyzed and reported using median overall survival (mOS) (95% CI). Multivariate analyses were performed using Cox proportional hazard models adjusting for sex, race, facility type, and income and reported using hazard ratios for death (HR) (95% CI). Results: 13850 patients with NSCLC BM were included: 81% (N=11123) were White, 14% (N=1914) Black, 0.5% (N=73) AAPI, 3.7% (N=508) Asian. 8% were treated in community cancer centers (CCC) and 39% in comprehensive CCCs (CCCC). 55% were Medicare-insured and 30% had annual income &gt;$74063. Compared to White, Asian patients had significantly better mOS of 29.1 months (24.57-36.5). Compared to non-Hispanic, Hispanic patients had significantly better mOS at 18.1 months (14.5-24.3). Medicaid and Medicare-insured had significantly worse outcomes vs. private-insured patients – mOS of 14.62 months (12.75-16.49) and 8.84 months (8.41-9.36) vs. 21.72 months (20.37-23.29). In multivariate analyses, compared to White, Asians had an HR of 0.61 (0.53-0.70). Hispanic had a HR of 0.77 (0.67-0.88) compared to non-Hispanic patients (P&lt;0.05). Compared to academic centers, patients treated at CCC (HR 1.42 (1.29-1.57)) and CCCC (HR 1.25 (1.19, 1.32)) had worse outcomes. Patients with higher annual income (&gt;$74063) had better outcomes compared to those with low income (&lt;$46277) (HR 0.83 (0.78-0.89), P&lt;0.002). Conclusions: Asian and Hispanic patients with NSCLC BM had better 3-year survival compared to White and non-Hispanic patients, respectively. Patients at community centers had worse outcomes than those at academic centers. Medicare-insured and Medicaid-insured patients had unfavorable outcomes. Targeted efforts are warranted to improve disparities in outcomes across racial and ethnic groups. [Table: see text]

Impact of environmental temperature on the survival outcomes of breast cancer: A SEER-based study

BackgroundExperimental evidence in tumor-bearing mouse models shows that exposure to cool, that is, sub-thermoneutral environmental temperature is associated with a higher tumor growth rate and an immunosuppressive tumor immune microenvironment than seen at thermoneutral temperatures. However, the translational significance of these findings in humans is unclear. We hypothesized that breast cancer patients living in warmer climates will have better survival outcomes than patients living in colder climates.MethodsA retrospective population-based analysis was conducted on 270,496 stage I-III breast cancer patients, who were retrieved from the Surveillance, Epidemiology and End Results (SEER) over the period from 1996 to 2017. The average annual temperature (AAT) was calculated based on city level data from the National Centers for Environmental Information.ResultsA total of 270, 496 patients were analyzed. Temperature as assessed in quartiles. After adjusting for potential confounders, patients who lived in the 3rd and 4th quartile temperature regions with AAT 56.7–62.5°F (3rd quartile) and > 62.5°F (4th quartile) had a 7% increase in the OS compared to patients living at AAT < 48.5°F (1st quartile) (HR 0.93, 95% CI 0.90–0.95 and HR 0.93, 95% CI 0.91–0.96, respectively). For DSS, When comparing AAT quartiles, patients living with AAT in the range of 56.7–62.5°F and > 62.5°F demonstrated a 7% increase each in DSS after adjustment (HR 0.93, 95% CI 0.90–0.96 and HR 0.93, 95% CI 0.90–0.96).ConclusionsHigher environmental temperatures are associated with significantly better OS and DSS in breast cancer patients. Future research is warranted to confirm this observation using large datasets to elucidate the underlying mechanisms and investigate novel therapeutic strategies to minimize this geographic disparity in clinical outcomes.

Abstract PO4-09-12: Academic-community partnership bridges disparities in African American patient representation in accelerated partial breast irradiation clinical trials

Abstract Purpose/Objectives: Clinical outcomes in African American (AA) patients diagnosed with breast cancer continue to lag behind other racial groups. Thus, AA women are 41% more likely to die from breast cancer than White women despite lower incidence of breast cancer in AA women. Some of these disparities are related to barriers in access to standard-of-care treatments such as radiation therapy (RT). The prolonged nature of radiation treatments confers disproportionate higher burden (due to lost wages, transportation costs etc.) on economically disadvantaged groups such as AA women. Accelerated partial breast irradiation (ABPI), which dramatically reduces treatment time in appropriately selected patients, has the potential to mitigate financial toxicity, and improve access and treatment compliance for AA. However, underrepresentation of AA patients in APBI trials may pose a barrier to wide adoption of APBI treatments in this patient population. At our institution, we have established a unique partnership between our University Hospital and a county hospital that serves as a safety-net hospital for many economically disadvantaged groups and treats a large proportion of AA patients. The goal of this study is to determine if our unique academic-community partnership improves disparities in representation of AA patients in APBI trials. Methods: We performed a PUBMED search to identify 197 clinical trials involving ABPI. After excluding international trials and multiple reports from the same trials, we identified 80 unique studies that were based in the United States. A total of 20 studies investigating APBI provided demographics data, comprising 1735 total patients. AA enrollment rate in these trials was compared to APBI trials completed at our institution in partnership with our county hospital partner. Results: Out of 1785 patients enrolled in APBI trials in the United States where demographic information was available, 1488 patients were White (85.7%), 124 were Black (7.1%), 67 were Hispanic (3.9%), and 46 were Asian (2.7%), and 10 patients were classified as multiple or unknown (0.6%). We compared these results to two APBI trials conducted at our institution investigating 5-fraction and single fraction APBI regimens. Out of a total of 104 patients treated, 17 patients (16.3%) were Black. This difference in proportion of AA patient enrollment between our institution (16.3%) versus those reported in APBI trials across the United States (7.1%) was statistically significant (p &amp;lt; 0.05). Conclusion: Reporting and representation of AA patients in APBI trials remains low, which may lead to lower adoption of APBI treatments in AA patients. This may lead to underutilization of APBI, a convenient treatment with lower financial toxicity, among AA patients. Our study shows that effective academic-community partnerships can bridge such disparities in AA patient representation in APBI trials. Expansion of such academic-community partnerships across the country may bridge systemic disparities in AA patient representation in oncology clinical trials. Future studies are needed to determine if improved access to novel and convenient treatments such APBI will bridge existing disparities in clinical outcomes in patients diagnosed with breast cancer. Citation Format: Ev Kakadiaris, Brian Lue, Young Suk Kwon, Prasanna Alluri, D Nathan Kim, Ann Sprangler, Mona Arbab, Robert Timmerman, Asal Rahimi. Academic-community partnership bridges disparities in African American patient representation in accelerated partial breast irradiation clinical trials [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 PO4-09-12.

Abstract 4834: Racial disparities in pain and psychiatric medication use in patients with metastatic colorectal cancer

Abstract Background: In the United States, colorectal cancer (CRC) is a public health concern, as it is the second leading cause of cancer-related death, accounting for over 50,000 deaths annually. In addition to its high mortality, CRC is associated with significant comorbidities including pain and psychiatric symptoms, particularly in late-stage disease. Supportive care medications (SCM) are frequently used for symptom management and improving health-related Quality of Life (HRQoL). Racial disparities in clinical outcomes including HRQoL have been reported in CRC. While racial disparities have been described in the use of SCM for some cancer types, no investigation of SCM use in late-stage CRC have been performed. The purpose of our study was to explore the relationship between SCM use and race/ethnicity in patients with metastatic CRC. Methods: We used the National Cancer Institute Surveillance Epidemiology and End Results (NCI SEER)- Medicare-linked database to analyze all patients with a CRC diagnosis and a newly initiated outpatient prescription claim for an SCM of interest from 2009-2018. Patients on SCM before cancer diagnosis or who had non-metastatic CRC at diagnosis were excluded. We assessed six SCM classes: opioids, non-opioid analgesics, skeletal muscle relaxants, antidepressants, anxiolytics, and antipsychotics. Results: After application of inclusion/exclusion criteria, 28, 212 patients were included in the final analysis (White: 72.8%, Black: 12.7%, Hispanic: 9.5%, Asian: 4.6%, Native American: 0.4%). After controlling for socioeconomic factors and compared to non-Hispanic White patients, there were significant differences across multiple SCM drug classes. When considering pain medications, these differences were bi-directional. Black patients were less likely to receive opioids (adjusted Odds Ratio [aOR] 0.86, 95% CI: 0.80-0.93), while Hispanic patients were more likely to receive opioids (aOR: 1.12, 95% CI: 1.03-1.22) and non-opioid analgesics (aOR 1.22, 95% CI: 1.06-1.40). Asian patients were more likely to receive non-opioid analgesics (aOR 1.71, 95% CI: 1.45-2.03), but less likely to receive skeletal muscle relaxants (aOR 0.60, 95% CI: 0.43-0.82). When considering psychiatric medications, decreased use among all racial groups was noted for antidepressants (Black: aOR 0.53, 95% CI: 0.50-0.60; Hispanic: aOR 0.82, 95% CI: 0.75-0.90; Asian: aOR 0.48, 95% CI: 0.42-0.56), and anxiolytics (Black: aOR 0.43, 95% CI: 0.38-0.49; Hispanic: aOR 0.76, 95% CI: 0.67-0.85; Asian: aOR 0.45, 95% CI: 0.37-0.55). Among antipsychotics, only Asian patients had less use compared to non-Hispanic White patients. Conclusion: Racial disparities in the use of pain and psychiatric medications among patients with late-stage CRC were present, even after controlling for multiple confounders. Further investigation is needed to understand drivers and their impact on HRQoL outcomes. Citation Format: John M. Allen, Olga M. Trejos Kweyete, Yi Guo, Sherise C. Rogers, Lisa Scarton, David L. DeRemer, Chardae Whitner, Diana J. Wilkie. Racial disparities in pain and psychiatric medication use in patients with metastatic colorectal cancer [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 4834.

Trends in pediatric firearm-related injuries and disparities in acute outcomes.

Firearm-related injuries (FRI) are an increasing cause of death and injury in children. The etiology for this rise is multifactorial and includes socioeconomic factors. Despite its prevalence and documented increase over COVID-19, there is a paucity of research on disparities and the influence of social determinants of health (SDH) in pediatric FRI. This study aims to explore the epidemiology of this vulnerable population in Atlanta, trends over time and relevant dates such as COVID-19 and a state firearm law, and disparities in clinical outcomes. Retrospective cohort of patients with FRI (0-20 years-old, x̄=9.8, Median = 11) presenting to our hospital EDs from January 2014 to April 2023 (N = 701) and eligible for the Trauma Registry. This period includes two major events, namely the COVID-19 pandemic (March 2020), and passage of state law Constitutional Carry Act (SB 319) (April 2022), allowing for permit-less concealed firearm carry. Single series interrupted time series (ITS) models were run and clinical outcome differences between race and insurance groups were calculated unadjusted and adjusted for confounders using inverse propensity treatment weights (IPTW). The primary outcome was mortality; secondary are admission and discharge. Majority of FRI involved patients who were male (76.7%), Black (74.9%), publicly insured (82.6%), ≤12 years-old (61.8%), and injured by unintentional shootings (45.6%) or assault (43.7%). During COVID-19, there was a sustained increase in FRI rate by 0.42 patients per 1,000 trauma visits per month (95% CI 0.02-0.82, p = 0.042); post-SB 319 it was 2.3 patients per 1,000 trauma visits per month (95% CI 0.23-4.31, p = 0.029). Publicly insured patients had 58% lower odds of mortality than privately insured patients (OR 0.42, 95% CI 0.18-0.99, p = 0.047). When controlled for race and mechanism of injury, among other confounding factors, this association was not significant (p = 0.652). Pediatric FRI are increasing over time, with disproportionate burdens on Black patients, at our hospitals. Disparities in mortality based on insurance necessitate further study. As social and economic repercussions of COVID-19 are still present, and state firearm law SB 319 is still in effect, assessment of ongoing trends is warranted to inform preventative strategies.

Gender disparities and predictors of in-hospital mortality with Takotsubo cardiomyopathy

BackgroundTakotsubo cardiomyopathy (TCM) is classically associated with significant gender disparities, such that it is more prevalent in females, but the clinical outcomes are worse for male patients. The goal of this study was to assess contemporary gender disparities in clinical outcomes of TCM hospitalizations and to determine predictors of male in-hospital mortality. MethodsThis was a retrospective analysis involving adult hospitalizations for TCM in the U.S between 2016 and 2020. Multivariable Logistic regression was used to estimate Odds Ratio (OR) for in-hospital mortality between the two genders. Univariable Cox regression was performed to identify predictors associated with in-hospital mortality for male hospitalizations. All factors from the univariable analysis with p < 0.20 were included in a multivariable Cox regression model. ResultsA total of 199,920 patients with TCM were identified. Female patients with TCM had 50% lower risk of in-hospital mortality compared to male patients (Adjusted OR 0.50, 95% CI 0.46–0.55, p < 0.001). Older age, higher Charlson comorbidity index, history of intracranial hemorrhage, cardiac arrest, need for vasopressor agents, mechanical intubation, and cardiogenic shock without the use of temporary mechanical circulatory support (MCS) were associated with higher in-hospital male mortality. ConclusionsAlthough TCM is more prevalent among females, gender disparities exist in the clinical outcomes of TCM patients. Cardiac arrest and cardiogenic shock without the use of temporary MCS were found to be the most significant predictors of male in-hospital mortality. Cardiogenic shock with use of temporary MCS did not lead to higher male in-hospital mortality.

Spatial and temporal analysis of HIV clinical outcomes in Florida reveals counties with persistent racial and ethnic disparities during 2012-2019

BackgroundRacial/ethnic disparities in the HIV care continuum have been well documented in the US, with especially striking inequalities in viral suppression rates between White and Black persons with HIV (PWH). The South is considered an epicenter of the HIV epidemic in the US, with the largest population of PWH living in Florida. It is unclear whether any disparities in viral suppression or immune reconstitution—a clinical outcome highly correlated with overall prognosis—have changed over time or are homogenous geographically. In this analysis, we 1) investigate longitudinal trends in viral suppression and immune reconstitution among PWH in Florida, 2) examine the impact of socio-ecological factors on the association between race/ethnicity and clinical outcomes, 3) explore spatial and temporal variations in disparities in clinical outcomes.MethodsData were obtained from the Florida Department of Health for 42,369 PWH enrolled in the Ryan White program during 2008-2020. We linked the data to county-level socio-ecological variables available from County Health Rankings. GEE models were fit to assess the effect of race/ethnicity on immune reconstitution and viral suppression longitudinally. Poisson Bayesian hierarchical models were fit to analyze geographic variations in racial/ethnic disparities while adjusting for socio-ecological factors.ResultsProportions of PWH who experienced viral suppression and immune reconstitution rose by 60% and 45%, respectively, from 2008-2020. Odds of immune reconstitution and viral suppression were significantly higher among White [odds ratio =2.34, 95% credible interval=2.14-2.56; 1.95 (1.85-2.05)], and Hispanic [1.70 (1.54-1.87); 2.18(2.07-2.31)] PWH, compared with Black PWH. These findings remained unchanged after accounting for socio-ecological factors. Rural and urban counties in north-central Florida saw the largest racial/ethnic disparities.ConclusionsThere is persistent, spatially heterogeneous, racial/ethnic disparity in HIV clinical outcomes in Florida. This disparity could not be explained by socio-ecological factors, suggesting that further research on modifiable factors that can improve HIV outcomes among Black and Hispanic PWH in Florida is needed.