non-Hispanic Whites Research Articles

Optimal Pair Matching Combined with Machine Learning Predicts a Significant Reduction in Myocardial Infarction Risk in African Americans Following Omega-3 Fatty Acid Supplementation.

Conflicting clinical trial results on omega-3 highly unsaturated fatty acids (n-3 HUFA) have prompted uncertainty about their cardioprotective effects. While the VITAL trial found no overall cardiovascular benefit from n-3 HUFA supplementation, its substantial African American (AfAm) enrollment provided a unique opportunity to explore racial differences in response to n-3 HUFA supplementation. The current observational study aimed to simulate randomized clinical trial (RCT) conditions by matching 3766 AfAm and 15,553 non-Hispanic White (NHW) individuals from the VITAL trial utilizing propensity score matching to address the limitations related to differences in confounding variables between the two groups. Within matched groups (3766 AfAm and 3766 NHW), n-3 HUFA supplementation's impact on myocardial infarction (MI), stroke, and cardiovascular disease (CVD) mortality was assessed. A weighted decision tree analysis revealed belonging to the n-3 supplementation group as the most significant predictor of MI among AfAm but not NHW. Further logistic regression using the LASSO method and bootstrap estimation of standard errors indicated n-3 supplementation significantly lowered MI risk in AfAm (OR 0.17, 95% CI [0.048, 0.60]), with no such effect in NHW. This study underscores the critical need for future RCT to explore racial disparities in MI risk associated with n-3 HUFA supplementation and highlights potential causal differences between supplementation health outcomes in AfAm versus NHW populations.

Proteomic networks and related genetic variants associated with smoking and chronic obstructive pulmonary disease

BackgroundStudies have identified individual blood biomarkers associated with chronic obstructive pulmonary disease (COPD) and related phenotypes. However, complex diseases such as COPD typically involve changes in multiple molecules with interconnections that may not be captured when considering single molecular features.MethodsLeveraging proteomic data from 3,173 COPDGene Non-Hispanic White (NHW) and African American (AA) participants, we applied sparse multiple canonical correlation network analysis (SmCCNet) to 4,776 proteins assayed on the SomaScan v4.0 platform to derive sparse networks of proteins associated with current vs. former smoking status, airflow obstruction, and emphysema quantitated from high-resolution computed tomography scans. We then used NetSHy, a dimension reduction technique leveraging network topology, to produce summary scores of each proteomic network, referred to as NetSHy scores. We next performed a genome-wide association study (GWAS) to identify variants associated with the NetSHy scores, or network quantitative trait loci (nQTLs). Finally, we evaluated the replicability of the networks in an independent cohort, SPIROMICS.ResultsWe identified networks of 13 to 104 proteins for each phenotype and exposure in NHW and AA, and the derived NetSHy scores significantly associated with the variable of interests. Networks included known (sRAGE, ALPP, MIP1) and novel molecules (CA10, CPB1, HIS3, PXDN) and interactions involved in COPD pathogenesis. We observed 7 nQTL loci associated with NetSHy scores, 4 of which remained after conditional analysis. Networks for smoking status and emphysema, but not airflow obstruction, demonstrated a high degree of replicability across race groups and cohorts.ConclusionsIn this work, we apply state-of-the-art molecular network generation and summarization approaches to proteomic data from COPDGene participants to uncover protein networks associated with COPD phenotypes. We further identify genetic associations with networks. This work discovers protein networks containing known and novel proteins and protein interactions associated with clinically relevant COPD phenotypes across race groups and cohorts.

Derivation of human primary prostate epithelial cell lines by differentially targeting the CDKN2A locus along with expression of hTERT

Prostate cancer (PCa) is the most common cancer diagnosed in men worldwide and was the second leading cause of cancer-related deaths in US males in 2022. Prostate cancer also represents the second highest cancer mortality disparity between non-Hispanic blacks and whites. However, there is a relatively small number of prostate normal and cancer cell lines compared to other cancers. To identify the molecular basis of PCa progression, it is important to have prostate epithelial cell (PrEC) lines as karyotypically normal as possible. Our lab recently developed a novel methodology for the rapid and efficient immortalization of normal human PrEC that combines simultaneous CRISPR-directed inactivation of CDKN2A exon 2 (which directs expression of p16INK4A and p14ARF) and ectopic expression of an hTERT transgene. To optimize this methodology to generate immortalized lines with minimal genetic alterations, we sought to target exon 1α of the CDKN2A locus so that p16INK4A expression is ablated while the exons encoding p14ARF remains unaltered. Here we describe the establishment of two cell lines: one with the above-mentioned p16INK4A only loss, and a second line targeting both products in the CDKN2A locus. We characterize the potential lineage origin of these new cell lines along with our previously obtained clones, revealing distinct gene expression signatures. Based on the analyses of protein markers and RNA expression signatures, these cell lines are most closely related to a subpopulation of basal prostatic cells. Given the simplicity of this one-step methodology and the fact that it uses only the minimal genetic alterations necessary for immortalization, it should also be suitable for the establishment of cell lines from primary prostate tumor samples, an urgent need given the limited number of available prostate cancer cell lines.

Racial-ethnic differences in the associations between functional disabilities and subsequent depression among community-dwelling midlife and older adults in the US

BackgroundThe intersection of race/ethnicity with disability is a critical dimension of mental health outcomes in later ages that remains under-investigated. ObjectiveWe examined the role of race-ethnicity in moderating the associations between functional disabilities and subsequent depression among Americans 51 and older and stratified into the two age-groups of midlife (51-64) and older adults (≥65). MethodsUsing a nationally representative sample of community-dwelling Americans (≥51; n=7,475) in the 2016-2018 Health and Retirement Study, we conducted bivariate and multivariable regression analyses. Racial-ethnic groups included non-Hispanic (NH) Black, Hispanic, and NH White and a binary (0/1) outcome defined subsequent depression in 2018. The total number of difficulties on the Nagi, Lawton, and Katz disability scales represented baseline (2016) functional disabilities with a secondary four-level (no/mild/severe with assistance/severe without assistance) disability indicator incorporated to examine the role of assistance with daily living. ResultsAcross age-groups, subsequent depression was significantly more prevalent among NH Whites with functional disabilities compared to counterparts reporting no disabilities. Compared to NH Black and Hispanic counterparts, midlife NH Whites were three times more likely to report subsequent depression with each unit increase in the functional disability score, after adjusting for covariates. However, we observed no such racial-ethnic differences among older adults. Among the 51+ severe with no assistance group, adjusted odds of subsequent depression among NH Whites was 2.5 times higher than minority counterparts. ConclusionHealth programs and environmental adaptations supporting functional care needs in later ages could be beneficial for improving mental health of adults with disabilities.

Racial and Ethnic Disparities in Autologous Hematopoietic Cell Transplantation Utilization in Multiple Myeloma Have Persisted Over Time Even After Referral to a Transplant Center

Despite the use of autologous hematopoietic cell transplantation (AHCT) in treatment of multiple myeloma (MM) for almost 40 years and its persistence as standard of care in transplantation-eligible patients with MM even after the advent of novel agents, AHCT remains underutilized, especially in racial and ethnic minority populations. As part of a multipronged effort to quantify disparities in AHCT utilization in MM by race and ethnicity and over time in our own cancer center, we conducted an institutional review of all new patients seen at an academic transplant center for consultation for MM between 2012 and 2022, to calculate AHCT utilization and investigate the factors associated with AHCT utilization. Race and ethnicity were self-reported. Baseline characteristics were analyzed in 3 groups: non-Hispanic White (NHW), non-Hispanic Black (NHB), and Others. Reasons for not undergoing AHCT in the EHR were recorded. Multivariate analyses evaluated the effect of group on AHCT utilization, controlling for covariates related to patients not undergoing AHCT by overall cohort and consult period. Of the 1266 patients, 13.4% were NHB. The median age at consult was 66 (IQR, 23-97) years overall, 66 (IQR, 23-97) years for NHWs, 63 (IQR, 25-85) years for NHBs, and 59.5 (IQR, 31-79) years for Others (P < .01). AHCT utilization was 76% overall, 64.7% in NHBs, 76.8% in Others, and 77.8% in NHWs (P < .01). Age, cytogenetics, stage, comorbidities, and time from diagnosis to consult were associated with receipt of AHCT. From 2012-2017 to 2018-2022, NHB AHCT utilization increased from 57.5% to 69.8% (P = .10). For those who did not receive AHCT, patient preference, older age, comorbidity, early mortality, and lack of caregiver support were the most frequently documented reasons. The NHW group had greater AHCT utilization compared to the NHB group (odds ratio [OR], 3.32; 95% confidence interval [CI], 2.17-5.08; P < .0001). Absent cardiac (OR, 1.88; 95% CI, 1.35-2.62; P = .0002) or renal comorbidity (OR, 3.23; 95% CI, 2.03-5.15; P < .0001) was associated with receipt of AHCT. Older age at consult (OR, .89; 95% CI, .87-.90; P < .0001) and longer time from diagnosis to consult (OR, .97; 95% CI, .95-.98; P < .0001) were associated with lower AHCT utilization. While AHCT utilization increased from 2012-2017 to 2018-2022 in NHBs compared to NHWs, it remained significantly lower. Racial and ethnic AHCT underutilization has improved over time, but disparities persist. Younger age at consult, shorter time from diagnosis to consult, and lack of cardiac and renal comorbidities also are associated with AHCT utilization.

Social Determinants of Health and Disparities in Pregnancy Outcomes

OBJECTIVE: To examine the extent to which racial and ethnic disparities in adverse pregnancy outcomes between non-Hispanic Black women and non-Hispanic White women may be explained by social determinants of health (SDoH). METHODS: This study was a secondary analysis of a prospective cohort study (nuMoM2b [Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-Be]) that enrolled 10,038 nulliparous individuals with singleton pregnancies. This analysis included only individuals who identified as non-Hispanic Black or non-Hispanic White. We used the nonlinear extension of the Oaxaca-Blinder decomposition based on logistic regression to estimate the percentage contribution of SDoH to racial and ethnic disparity in preterm birth (PTB) and preeclampsia. Eleven SDoH variables in the models covered various SDoH domains (ie, sociodemographic, psychological, behavioral, social relationship, and health care access and quality). RESULTS: Of 10,038 individuals, 1,321 non-Hispanic Black and 5,762 non-Hispanic White individuals composed the study population. Compared with non-Hispanic White individuals, non-Hispanic Black individuals had 3.9% (95% CI, 2.0–5.7) and 4.1% (95% CI, 2.2–6.0) higher frequencies of PTB and preeclampsia, respectively. A large proportion of disparities between non-Hispanic White women and non-Hispanic Black women in PTB (56.4%; 95% CI, 2.9–100.0) and preeclampsia (71.2%; 95% CI, 17.5–100.0) may be explained by SDoH. CONCLUSION: A large percentage of the racial and ethnic disparities between non-Hispanic Black and non-Hispanic White individuals in PTB and preeclampsia were explained by SDoH. These findings underscore the contribution of SDoH to racial and ethnic disparities in adverse pregnancy outcomes and point to intervention targets to reduce racial health disparities.

Maryland opioid overdose deaths from 2018 to 2022: occupational patterns and their sociodemographic variations

IntroductionWe aimed to describe the occupational pattern of opioid overdose deaths in Maryland between 2018 and 2022 and determine the occupations at higher risk of opioid overdose death.MethodsThe sample included...

Racial disparities in access to liver transplantation in patients with early-stage hepatocellular carcinoma

BackgroundOrthotopic liver transplantation is the recommended treatment option for patients with early-stage hepatocellular carcinoma and concomitant cirrhosis. Waitlist candidacy can be affected by social determinants of health that vary across races and ethnicities. Our study sought to evaluate whether racial/ethnic disparities exist in access to orthotopic liver transplantation in patients with hepatocellular carcinoma. MethodsThe National Cancer Database participant use file was used to analyze data between 2004 and 2020. Patients 18–70 years of age with TNM clinical stage I and II hepatocellular carcinoma who received either orthotopic liver transplantation or liver directed/nonsurgical therapies were included. Baseline demographic variables and treatment modalities were collected. Patients were assigned fixed categories on the basis of race and ethnicity. Descriptive statistics, multivariable logistical regressions, effects modification analysis, and propensity matching were used. ResultsThere were 23,313 non-Hispanic White, 5,215 non-Hispanic Black, 5,581 Hispanic, and 2,768 other patients included in this analysis. Significant socioeconomic variation was observed across races. Non-Hispanic White patients were more likely to undergo orthotopic liver transplantation than non-Hispanic Black patients. The proportion of patients insured by Medicare was the same between non-Hispanic White and non-Hispanic Black patients. There was a graeter proportion of non-Hispanic Black patients with Medicaid compared with non-Hispanic White patients, whereas a lower proportion of non-Hispanic Black patients were insured via private insurance compared with non-Hispanic White patients. Effect modification analysis showed the non-Hispanic Black patients were less likely to undergo orthotopic liver transplantation for those with private and Medicare coverage compared with non-Hispanic White patients. Propensity matching showed a significantly decreased rate of orthotopic liver transplantation in non-Hispanic Black patients compared with non-Hispanic White patients. ConclusionNon-Hispanic Black patients were less likely to undergo orthotopic liver transplantation for early-stage hepatocellular carcinoma, despite adjusting for cancer stage and socioeconomic factors, compared with non-Hispanic White patients. Social determinants of health were associated with the probability of undergoing orthotopic liver transplantation. Understanding disparities related to social determinants of health will help guide health policy changes and improved access to care.

The Relationship Between Neighborhood Disadvantage and Markers of Chronic Pain Risk: Findings From the Oklahoma Study of Native American Pain Risk (OK-SNAP)

Socioeconomic disadvantage contributes to health inequities, including chronic pain. Yet, research examining socioeconomic disadvantage and pain risk in Native Americans (NAs) is scant. This exploratory analysis assessed relationships between socioeconomic position (SEP), ethnicity, and neighborhood disadvantage on pronociceptive processes in 272 healthy, chronic pain-free NAs (n = 139) and non-Hispanic Whites (NHWs, n = 133) from the Oklahoma Study of Native American Pain Risk (OK-SNAP). Neighborhood disadvantage was quantified using the Area Deprivation Index (ADI). Regression models tested whether ADI predicted pain-promoting outcomes (ie, peripheral fiber functionality, pain sensitivity, pain and nociceptive amplification, and endogenous pain inhibition) above-and-beyond SEP and ethnicity. The Ethnicity × ADI interaction was also tested. Of the 11 outcomes tested, 9 were not statistically significant. Of the significant findings, neighborhood disadvantage predicted impaired inhibition of the nociceptive flexion reflex above-and-beyond SEP and ethnicity. Additionally, ethnicity moderated the relationship between ADI and warm detection threshold; disadvantage was associated with higher thresholds for NAs, but not for NHWs. Together, the results suggest neighborhood disadvantage is associated with reduced C-fiber function and impaired spinal inhibition, thus pointing to a role of neighborhood disadvantage in the relationship between the environment and pain inequities. PerspectiveThis study assessed neighborhood socioeconomic disadvantage and pronociceptive processes in chronic pain-free Native Americans (NAs) and non-Hispanic Whites (NHWs). Irrespective of ethnicity, greater neighborhood disadvantage predicted less descending inhibition of spinal nociception. Neighborhood disadvantage was associated with a marker of C-fiber impairment (higher warm detection threshold) in NAs only.

Racial disparities in the utilization and outcomes of robotic bariatric surgery: an 8-year analysis of Metabolic and Bariatric Surgery Accreditation Quality Improvement Program data

BackgroundRobotic surgery utilization has been increasing across surgical specialties; however, racial disparities in patient access to care and outcomes have been reported. ObjectivesIn this study, we examined racial disparities in the utilization and outcomes of robotic bariatric surgery over an 8-year period. SettingMetabolic and Bariatric Surgery Accreditation Quality Improvement Program (MBSAQIP) centers of excellence across the United States. MethodsThe MBSAQIP database was used to identify adult patients who underwent robotic bariatric surgery between 2015 and 2022. Patients were stratified according to race and ethnicity into non-Hispanic White, non-Hispanic Black or African American (AA), Indigenous, Asian, and Hispanic patients. Multivariable analyses were used to assess predictors of robotic surgery use, odds of minor and major complications, prolonged length of stay (prolonged length of stay (pLOS): ≥3 days), readmissions, reoperations, and mortality within 30 days. ResultsOut of 1,288,359 patients included, robotic surgery was utilized in 196,314 patients (15.2%), with a mean age of 44 ± 12 years and 80.6% females. Rates of robotic surgery increased to 30% by 2022. Compared to White patients, Black/AA patients were more likely to undergo robotic surgery (adjusted odds ratio (aOR) = 1.22, 95% confidence interval (CI) = 1.21-1.24, P < .001). The safety of robotic bariatric surgery improved for both White and Black patients with decreased odds of major complications, readmissions, reoperations, and pLOS over the study period. However, Black/AA patients were more likely to experience minor and major complications, readmissions and have pLOS compared with White patients in 2022 (aOR:1.26, 95% CI:1.19-1.34, P < .001; aOR:1.22, 95% CI:1.06-1.41, P = .006; aOR:1.44, 95% CI:1.28-1.62, P < .001; aOR:2.26, 95% CI:2.06-2.47, P < .001, respectively). ConclusionThe utilization of robotic bariatric surgery has increased significantly over the past 8 years with continued improvements in its safety profile. While Black/AA patients have improved access to robotic surgery, their clinical outcomes continue to be worse than those of White patients. Efforts to address racial disparities in bariatric surgery outcomes must remain a priority to achieve health equity.

Traumatic brain injury is associated with the subsequent risk of atrial fibrillation or atrial flutter

BackgroundTraumatic brain injury (TBI) is associated with a variety of adverse long-term outcomes and increases sympathetic nervous system activation, which could increase the risk of arrhythmias including atrial fibrillation or atrial flutter (AF/AFL). ObjectiveWe examined episodes of TBI and subsequent AF/AFL in a large cohort of post-9/11 servicemembers and veterans. MethodsThe variable of interest was TBI, stratified by severity (mild, moderate/severe, and penetrating). The outcome was a subsequent diagnosis of AF/AFL. We used Fine-Gray competing risks models to evaluate the potential risk imparted by TBI on subsequent AF/AFL. ResultsOf the 1,924,900 participants included in the analysis, 369,891 (19.2%) experienced an episode of documented TBI. Most were young (63% <35 years), male (81.7%), and non-Hispanic White (62.7%). AF/AFL was diagnosed in 22,087 patients. On univariate analysis, only penetrating TBI (hazard ratio [HR], 2.02; 95% confidence interval [CI], 1.84–2.23; P < .001) was associated with AF/AFL compared with veterans without TBI. After adjustment in the full multivariable model (adjusted for age, sex, race and ethnicity, service branch, rank, component, and comorbidities), mild (HR 1.27, 95% CI 1.22–1.32; P < .001), moderate/severe (HR, 1.34; 95% CI, 1.24–1.44; P < .001), and penetrating TBI (HR, 1.82; 95% CI, 1.65–2.02; P < .001) were significantly associated with AF/AFL compared with no TBI. Post hoc analyses demonstrated that the risk of AF/AFL was concentrated in female and younger patients. ConclusionWe found that an episode of TBI, particularly penetrating TBI, significantly increased the risk for AF/AFL. Further work is needed to delineate the long-term risk of arrhythmias after TBI.

Abstract P371: Prevalence, Timing, and Location of Falls in an Older Population with Treated Hypertension

Background: Falls are common among older adults and predict subsequent morbidity and mortality. There is a dearth of knowledge about the timing and location of falls in community-based populations of older adults. Methods: We identified members of Kaiser Permanente Southern California aged ≥65 years diagnosed with hypertension enrolled in the AMBulatoRy blOod preSsure In older Adults (AMBROSIA) study. Demographic and clinical characteristics were obtained from electronic health records while self-administered surveys captured social history and presence of functional impairment. Participants submitted 12 monthly falls calendars recording the time and location of each fall, and whether the fall resulted in medical care. Fisher’s exact test was used to compare participant characteristics between those who reported a fall vs. no fall. Results: We included 632 participants (mean age 74.6 years [range 65-95]; 57% female; 44% non-Hispanic White, 23% non-Hispanic Black, 18% Hispanic, and 13% Asian/Pacific Islander). Overall, 240 participants (38%) reported 680 falls during follow-up with 9% of falls requiring medical care. Those who reported a fall were older, more likely to be White, have a history of self-reported falls, have consumed alcoholic beverages in the past year and have ≥1 functional impairment (all p-values &lt;.05) compared to those who reported no falls. Over a 24-hour period, 41%, 35%, and 24% of the falls occurred between 6am-12pm, 12pm-6pm, and 6pm-6am, respectively. Further, 59% of falls occurred at an indoor location. Conclusion: Falls among community-dwelling, older adults with hypertension were common with few requiring medical care. Although most falls occurred during daytime hours, approximately one fourth occurred during nighttime hours. Further, the majority of falls occurred at an indoor location. Providers should be informed that many falls occur among older adults without presentation to a healthcare facility, and strategies should include prevention of falls indoors and during the daytime.

Discussion of Emotions Among Newly Diagnosed Non-Hispanic White and Chinese American Patients With Breast Cancer and Their Oncologists.

This qualitative study analyzed how Chinese American (CA) and non-Hispanic White (NHW) breast cancer patients and their oncologists communicated about patients' emotional concerns. Data included twenty-four recordings of clinical encounters between oncologists and four CA and eight NHW women with a new breast cancer diagnosis between 2013 and 2015. Using an interactional sociolinguistics approach to discourse analysis, we examined how CA and NHW patients and their oncologists initiated conversations about patients' emotions. We also categorized oncologists' responses by whether oncologists turned toward, turned away, or remained neutral to patients' emotions. When bringing up emotions with oncologists, NHW patients brought up social and personal life topics, whereas CA patients only brought up biomedical topics. We also observed that oncologists initiated discussions about emotions with only English-speaking patients of both racial groups. There were no observed differences in how oncologists remained neutral to or turned away from both CA and NHW patients' emotional expressions. When oncologists turned away from patients' emotions, they did so to solve administrative or biomedical problems. In conclusion, the findings suggest that CA patients' racial backgrounds and the language spoken during the encounters may influence how patients and oncologists initiate discussion about patients' emotions. Furthermore, the findings suggest that oncologists remain neutral and turn away from CA and NHW patients' emotions in similar ways. This study provides preliminary data for more comprehensive investigations of Asian American cancer patients' actual communication with their providers regarding emotions and treatment decisions to facilitate patient-provider communication quality.

Evaluating Receipt of Optimal Medical Therapy Among Structurally Disadvantaged Groups Undergoing Amputation

Optimal medical therapy (OMT) for peripheral artery disease (PAD) is associated with decreased major amputation and mortality. OMT has several components, including antiplatelet and high-intensity statin therapy, blood pressure control, etc. While there are disparities in receipt of OMT among PAD patients, it is unknown if patients from disadvantaged neighborhoods, measured by the area deprivation index (ADI), are less likely to be on OMT. We performed a retrospective review of patients that underwent major lower extremity amputation between 2015 and 2019 at two large academic healthcare systems. Primary exposure was high ADI, defined as ADI ≥60th percentile, and secondary exposure was non-Hispanic Black (NHB) race. For each analysis, the primary outcome of interest was receipt of OMT, defined here as at least one antiplatelet agent and a high-intensity statin. The exposure outcome relationship was assessed using multivariable logistic regression. Among 354 patients with median age of 66 (interquartile range [IQR] 58-74), 267 (75.4%) were male, 219 (61.9%) identified as NHB and 116 (32.8%) as non-Hispanic White. Overall, 91 (25.7%) patients were on OMT at time of amputation despite 57.3% of the cohort being established with a vascular surgeon. Compared to those with low ADI, the category high ADI had a higher proportion of NHB patients (48.1% vs 70.3%, p= 0.001) and patients were more often hospitalized at the University-affiliated facilities (47.4% vs 63.0%, p= 0.004). High ADI was not associated with receipt of OMT prior to major amputation (adjusted odds ratio [aOR] 0.72, 95% confidence interval [CI] 0.42-1.24). In secondary analysis, NHB race was not associated with receipt of OMT. Stratification by facility type (Veterans Affairs and University-affiliated facilities) also showed no association between high ADI or race and receipt of OMT. Neighborhood economic well-being is not associated with receipt of OMT prior to major amputation. While the absence of socioeconomic disparities is notable, the proportion of patients on OMT is suboptimal. Care processes should be critically evaluated and quality measures potentially created to improve the rate of receipt of OMT among patients at risk for amputation.

Impact of lung allocation policy change on Hispanic lung transplant outcomes: Addressing disparities and improving access

ObjectiveRacial disparities in organ allocation may result in differential survival for marginalized groups. This study aims to examine the impact of the November 2017 lung allocation policy change (LAPC) on trends and outcomes of Hispanic lung transplant (LT) recipients. MethodsThe United Network for Organ Sharing database was used to identify adult (older than age 18 years) LT recipients between January 2010 and March 2023. Recipients were categorized into 3 self-identified racial groups (Hispanic, non-Hispanic White, and non-Hispanic other). The Mann-Kendall trend test was used to assess the trend in rates of Hispanic LT over 5 years pre- and 5 years post-LAPC. The primary outcome was 1-year mortality. ResultsA total of 28,495 recipients from 80 centers were included, with 15,343 (53.8%) prepolicy change and 13,152 (46.2%) postpolicy change. The racial distribution of LT recipients was pre-LAPC: Hispanic: 1013 (6.6%), White: 12,601 (82.1%), Other: 1729 (11.3%) and post-LAPC: Hispanic: 1522 (11.6%), White: 9873 (75.0%), Other: 1757 (13.4%) (P < .001). Between 2013 and 2017, the proportion of Hispanic LT recipients increased from 6.0% to 7.6% (P = .221). Post-LAPC, the proportion increased from 8.5% in 2018 to 14.4% in 2022 (P < .027). Unadjusted 1-year survival rates were pre-LAPC: Hispanic: 88.8%, White: 87.6%, Other: 86.8% (log-rank P = .260) and post-LAPC: Hispanic: 90.6%, White: 88.2%, Other: 86.1% (log-rank P < .001). ConclusionsThe LAPC has led to increased access to LT and improved 1-year survival rates among Hispanic patients. However, efforts should continue to address disparities among other racial groups and ensure equitable outcomes for all recipients of LT.

Abstract 17: First-Line Beta Blocker Use Among &gt;3.1 Million Veterans Initiating Hypertension Treatment, 2000-2022

Introduction: It is unknown how often beta blockers (BB) are used first line for high blood pressure (BP) treatment among patients without compelling indications, despite US BP guidelines not recommending this practice since 2014. Research Question: How many start, and what factors influence, first line BB use among patients without compelling indications? Methods: Serial cross-sectional study of outpatients newly diagnosed and initiating treatment in the Veterans Health Administration, 1/1/2000–12/31/2022. We removed prevalent users, categorized drugs by class, and presented compelling indication status by initial BB use (mono- or combination therapy). Among those without compelling indications (ie, aortic aneurysm/disease, angina, atrial fibrillation/tachyarrhythmia, chronic liver disease/cirrhosis, heart failure with reduced ejection fraction, myocardial infarction, or coronary revascularization), multivariable Poisson regression estimated factors associated with BB use. Results: Of 3138304 Veterans (mean age 61 years, 94% male, 65% Non-Hispanic White), 774821 (25%) initiated a BB, of which the proportion without compelling indications decreased over time from 91% to 81%; the proportion with compelling indications increased from 9% to 19% (Panel A). Specific BBs used changed over time (Panel B). Among those without compelling indications, BB initiation was more likely with increasing age, females, current smokers, alcohol abuse, aspirin or statin use, each additional antihypertensive prescribed, each pre-index hospitalization, and urban setting (Panel C). Conclusions: Most Veterans using BB first line for high BP do not have compelling indications. Interventions are needed to align real world treatments with guidelines.

A retrospective cohort study examining the outcomes of patients who present for fertility care and exceed a set body mass index threshold for treatment

ObjectiveTo evaluate the characteristics of patients who exceeded the BMI threshold for fertility treatment at their initial visit and identify those for whom treatment would be constrained. DesignRetrospective cohort study SettingAcademic medical center PatientsAll new patients who presented for infertility treatment at an academic center between January 2020 to December 2022 and had BMI measured and recorded. Main outcome measuresLikelihood of weight loss and treatment initiation for patients who exceed a set BMI threshold of 40 kg/m2. ResultsOf the 1,268 patients who had their BMI recorded at initial visit, 48% identified as non-Hispanic White, 15% as non-Hispanic Black, 13% as Asian, 11% as Hispanic, 0.2% as Native American, 4% as other; 9% were of unknown race/ethnicity. Overall, 6% of women exceeded the 40 kg/m2 cutoff. Among Latino women, 7.5% exceeded the cutoff; among non-Hispanic Black women, 12% exceeded the cutoff. These percentages were greater than the percentage of non-Hispanic White women who exceeded the BMI cutoff (4.8%). ConclusionBMI thresholds disproportionately affect the ability of ethnic minorities to utilize fertility treatment and could potentially be worsening barriers to care these population of patients already face.

Abstract P432: Screening for Primary Aldosteronism: Effect of Test and Cutoff Level on Positivity Rate

Background: The 2016 guidelines of the Endocrine Society proposed a screening test for primary aldosteronism (PA) based on an aldosterone renin ratio (ARR) ≥30. However, a plasma renin activity (PRA) suppressed to &lt;1 ng/mL/h may indicate PA status better than the ARR. Methods: We conducted a retrospective analysis to compare the effectiveness of various screening tests for PA in a cohort of 94,829 consecutive patients who underwent ARR testing at Quest Diagnostics. The tests that were compared include ARR ≥20, ARR ≥30, PRA &lt;1 ng/mL/h, and PRA &lt;0.5 ng/mL/h. This comparison was made because the ARR tests may not be highly sensitive, while the PRA tests may not be highly specific. We also analyzed differences in test volume and positivity rate by region, race, ethnicity, and the time of day when the test was performed. Results: We observed that PRA &lt;1 ng/mL/h identified 2.2 times as many PA cases as ARR ≥20 and 3.3 times as many cases as ARR ≥30. Likewise, PRA &lt;0.5 ng/mL/h identified 1.3 times as many cases as ARR ≥20 and 1.9 times as many cases as ARR ≥30 (Table). We also found that PA positivity rates using ARR ≥20, ARR ≥30, PRA &lt;1 ng/mL/h, and PRA &lt;0.5 ng/mL/h were higher for tests performed before noon than after noon. Additionally, positivity rates were similar across US regions, although the Midwest had lower positivity for ARR tests than PRA tests, and the West had lower positivity for PRA tests than ARR tests. The PRA-based test continued to be positive more frequently than the two ARR-based tests regardless of race; however, non-Hispanic Black patients had a higher positivity rate than Hispanic, non-Hispanic White, and Asian patients, irrespective of the test used. Conclusions: Our data show that compared to PRA &lt;1 ng/mL/h and &lt;0.5 ng/mL/h, the ARR screening tool set at ≥20 or ≥30 potentially misses many patients with PA. If future prospective studies confirm this finding, one of the two suppressed PRA-based tests could become the preferred screening tool for PA.

Rule-based natural language processing to examine variation in worsening heart failure hospitalizations by age, sex, race and ethnicity, and left ventricular ejection fraction

BackgroundPrior studies characterizing worsening heart failure events (WHFE) have been limited in using structured healthcare data from hospitalizations, and with little exploration of sociodemographic variation. The current study examined the impact of incorporating unstructured data to identify WHFE, describing age-, sex-, race and ethnicity-, and left ventricular ejection fraction (LVEF)-specific rates. MethodsAdult members of Kaiser Permanente Southern California (KPSC) with a HF diagnosis between 2014-2018 were followed through 2019 to identify hospitalized WHFE. The main outcome was hospitalizations with a principal or secondary HF discharge diagnosis meeting rule-based Natural Language Processing (NLP) criteria for WHFE. In comparison, we examined hospitalizations with a principal discharge diagnosis of HF. Age-, sex-, and race and ethnicity-adjusted rates per 100 person-years (PY) were calculated among age, sex, race and ethnicity (non-Hispanic (NH) Asian/Pacific Islander [API], Hispanic, NH Black, NH White) and LVEF subgroups. ResultsAmong 44,863 adults with HF, 10,560 (23.5%) had an NLP-defined, hospitalized WHFE. Adjusted rates (per 100 PY) of WHFE using NLP were higher compared to rates based only on HF principal discharge diagnosis codes (12.7 and 9.3, respectively), and this followed similar patterns among subgroups, with the highest rates among adults ≥75 years (16.3 and 11.2), men (13.2 and 9.7), and NH Black (16.9 and 14.3) and Hispanic adults (15.3 and 11.4), and adults with reduced LVEF (16.2 and 14.0). Using NLP disproportionately increased the perceived burden of WHFE among API and adults with mid-range and preserved LVEF. ConclusionRule-based NLP improved the capture of hospitalized WHFE above principal discharge diagnosis codes alone. Applying standardized consensus definitions to EHR data may improve understanding of the burden of WHFE and promote optimal care overall and in specific sociodemographic groups.

Investigating sex, race, and geographic disparities in bronchus and lung cancer mortality in the United States: a comprehensive longitudinal study (1999-2020) utilizing CDC WONDER data.

Lung and bronchus cancer has become the leading cause of cancer-related mortality in the United States. Understanding the patterns of mortality is an absolute requirement. This study analyzed Lung and Bronchus cancer-associated mortality rates from 1999 to 2020 using death certificate data from the Centers for Disease Control and Prevention Wide-Ranging OnLine Data for Epidemiologic Research (CDC WONDER). Age-adjusted mortality rates (AAMRs), per 100000 people, and annual percentage change (APCs) were also calculated. 3599577 lung and bronchus cancer-related deaths occurred in patients aged younger than 1-85+ years between 1999 and 2020. Overall AAMRs declined from 59.1 in 1999 to 58.9 in 2001 (APC: -0.1364) then to 55.9 in 2005 (APC: -1.4388*) 50.5 by 2010 (APC: -2.0574*) 44.7 by 2014 (APC: -2.9497*) and 35.1 by 2020 (APC: -4.1040*). Men had higher AAMRs than women (overall AAMR men: 61.7 vs. women: 38.3). AAMRs were highest among non-Hispanic (NH) Black or African American (52.7) patients followed by NH White (51.8), NH American Indian or Alaska Native (38.6), NH Asian or Pacific Islander (24.7) and Hispanic or Latino race (20.2). AAMRs varied in region (overall AAMR; South: 52.4; Midwest: 52.3; Northeast: 46.3; West: 39.1). Non-metropolitan areas had a higher AAMR (55.9) as compared to metropolitan areas (46.7). The top 90th percentile states of Lung and Bronchus cancer AAMR were Arkansas, Kentucky, Mississippi, Tennessee, and West Virginia. An overall decreasing trend in AAMRs for lung and bronchus cancer was seen. Public health measures to regulate risk factors and precipitating events are needed.