Menopausal hormones and breast cancer in a biracial population.
OBJECTIVE
This study examined the association between menopausal hormones and breast cancer in a biracial population.


METHODS
Logistic regression was used to calculate odds ratios for breast cancer associated with hormone use among 397 cases and 425 controls, all menopausal women.


RESULTS
Odds ratios for ever use of hormones were 0.8 (95% confidence interval [CI] = 0.5, 1.2) for White women and 0.7 (95% CI = 0.4, 1.2) for Black women. Risk was not increased with longer duration of use or more recent use.


CONCLUSIONS
Breast cancer risk was not increased among White or Black women who used menopausal hormones, despite patterns of use varying considerably between races.
Moorman
P G
PG
Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, Conn., USA. patricia.moorman@yale.edu
Kuwabara
H
H
Millikan
R C
RC
Newman
B
B
D000328:Adult; D000368:Aged; D044383:Black People; D015992:Body Mass Index; D001943:Breast Neoplasms / Q000139:chemically induced / Q000208:ethnology*; D016022:Case-Control Studies; D003276:Contraceptives, Oral / Q000009:adverse effects; D004966:Estrogens, Conjugated (USP) / Q000009:adverse effects*; D005260:Female; D020249:Hormone Replacement Therapy / Q000009:adverse effects* / Q000706:statistics & numerical data; D006801:Humans; D016015:Logistic Models; D008593:Menopause; D008875:Middle Aged; D009657:North Carolina / Q000453:epidemiology; D011372:Progestins / Q000009:adverse effects; D012307:Risk Factors; D044465:White People; D001741:Black or African American
D003276:Contraceptives, Oral; D004966:Estrogens, Conjugated (USP); D011372:Progestins