Background Asian and Pacific Islander (Asian/PI) adults have lower hip fracture incidence than non‐Hispanic White (NHW) adults, but data regarding Asian/PI subgroups are limited. We compared hip fracture incidence among older US Asian/PI and NHW populations, including ethnic subgroup differences. Methods Using observational data from a California healthcare system, we identified Asian/PI and NHW adults aged ≥50 years (2000–2019) and followed subjects to 2021 for hip fracture determined by principal/primary hospital diagnosis or by secondary hospital diagnosis with hip/femur procedure codes. Age‐adjusted hip fracture incidence was calculated with 95% confidence intervals (CIs). Log‐Poisson regression was used to determine fracture incidence rate ratios (IRRs, [CI]; NHW or Chinese as reference) adjusting for age and year. Results Among 215,359 Asian/PI and 776,839 NHW women, hip fracture incidence was 1.34 (1.28–1.40) and 2.97 (2.94–3.01) per 1000 person‐years, respectively, with IRR 0.45 (0.43–0.47). Among 188,328 Asian/PI and 697,046 NHW men, hip fracture incidence was 0.62 (0.58–0.67) and 1.81 (1.78–1.84) per 1000 person‐years, respectively, with IRR 0.34 (0.32–0.37). For the four largest Asian/PI subgroups, Filipina women (IRR 0.85 [0.75–0.96]) had lower, and Japanese (IRR 1.36 [1.20–1.54]) and South Asian (IRR 1.36 [1.07–1.72]) women had higher hip fracture incidence compared to Chinese women. Hip fracture incidence was only higher among South Asian (IRR 1.61 [1.21–2.14]) compared to Chinese men. Conclusion Hip fracture incidence among US Asian/PI adults was 55% (women) and 66% (men) lower than NHW adults, but incidence varied by Asian/PI subgroup. The heterogeneity among Asian/PI adults highlights the importance of examining fracture risk by ethnic subgroup.

PURPOSE:Reports suggest that up to 50% of women with hormone receptor positive (HR+) breast cancer (BC) do not complete the recommended 5 years of adjuvant endocrine therapy (AET). We examined the impact of an outreach program at Kaiser Permanente Northern California (KPNC) on adherence and discontinuation of AET among patients who initiated AET. METHODS:We assembled a retrospective cohort of all KPNC patients diagnosed with HR+, stage I-III BC initiating AET before (n=4,287) and after (n=3,580) implementation of the outreach program. We compared adherence proportions and discontinuation rates before and after program implementation, both crude and adjusted for age, race/ethnicity, education, income and stage. We conducted a pooled analysis of data from six Cancer Research Network (CRN) sites that had not Terms of use and reuse: academic research for non-commercial purposes, see here for full terms. https://www.springer.com/aamterms-v1

Ambulatory patients with COVID-19 have a low risk of developing venous thromboembolism (VTE); whereas hospitalization is associated with a higher risk, necessitating thromboprophylaxis. 1,2 The use of extended thromboprophylaxis following COVID-19 hospitalization is controversial, and risk stratification tools are needed to better predict who may benefit. We report the 90-day incidence of VTE following hospitalization, stratified by COVID-19 surge period and vaccination status among adults tested for SARS-CoV-2.

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