Jennifer C. Livaudais|Dawn L. Hershman|Laurel A. Habel|Lawrence H. Kushi|Scarlett Lin Gomez|Christopher I. Li|Alfred I. Neugut|Louis Fehrenbacher|Beti Thompson|Gloria D. Coronado
Racial/ethnic differences in initiation of adjuvant hormonal therapy among women with hormone receptor-positive breast cancer
Icahn School of Medicine at Mount Sinai|Columbia University Irving Medical Center|Kaiser Permanente Oakland Medical Center|Kaiser Permanente Oakland Medical Center|Cancer Prevention Institute of California|University of Washington|Seattle University|Fred Hutch Cancer Center|Columbia University Irving Medical Center|Kaiser Permanente Oakland Medical Center|University of Washington|Seattle University|Fred Hutch Cancer Center|Kaiser Permanente Center for Health Research
mortality breast cancer diagnosis known vary raceethnicity even adjustment differences tumor characteristics adjuvant hormonal therapy decreases risk recurrence increases overall survival among women hormone receptorpositive tumors treatment disparities may play role explored racialethnic differences initiation adjuvant hormonal therapy defined two prescriptions tamoxifen aromatase inhibitor filled within first year diagnosis hormone receptorpositive localized regionalstage breast cancer sample included women diagnosed breast cancer enrolled kaiser permanente northern california kpnc odds ratios 95 confidence intervals ci compared initiation raceethnicity hispanic african american chinese japanese filipino south asian vs nonhispanic white nhw using logistic regression covariates included age year diagnosis arealevel socioeconomic status comorbidities tumor stage histology grade breast cancer surgery radiation chemotherapy use sample included 13753 women aged 2079 years diagnosed 1996 2007 70 initiated adjuvant hormonal therapy multivariable analysis hispanic chinese women less likely nhw women initiate adjuvant hormonal therapy 082 ci 071096 078 ci 063098 respectively within equal access insured population lower levels initiation adjuvant hormonal therapy found hispanic chinese women findings need confirmed insured populations reasons underinitiation among groups need explored