Table 3.

Mutually adjusted ORsa for invasive ovarian cancer in Los Angeles County non-Hispanic whites, Hispanics, and African Americans

Non-Hispanic whites (1,265/1,868)Hispanics (308/380)African Americans (128/143)All (1701/2391)
ca/coOR (95% CI)ca/coOR (95% CI)ca/coOR (95% CI)ca/coOR (95% CI)
Live-births
 Yes913/1,4261.00253/3281.00107/1191.001,273/1,8731.00
 No352/4421.43 (1.19–1.73)55/522.22 (1.28–3.84)21/241.42 (0.54–3.75)428/5181.47 (1.24–1.75)
 Per birth0.70 (0.58–0.84)0.45 (0.26–0.78)0.70 (0.27–1.86)0.68 (0.57–0.81)
Oral contraceptive (OC)
 Yes539/1,0921.0093/1721.0064/751.00696/1,3391.00
 None/<1 year726/7761.55 (1.31–1.84)215/2081.29 (0.87–1.92)64/681.30 (0.64–2.63)1,005/1,0521.47 (1.26–1.70)
 Per 5 years OC0.64 (0.54–0.76)0.77 (0.52–1.15)0.77 (0.38–1.55)0.68 (0.59–0.79)
Tubal ligation
 Yes119/2631.0050/1001.0025/441.00194/4071.00
 No1,146/1,6051.41 (1.10–1.81)258/2801.71 (1.07–2.74)103/991.65 (0.73–3.74)1,507/1,9841.52 (1.23–1.87)
Endometriosis
 No1,125/1,7281.00291/3671.00116/1351.001,532/2,2301.00
 Yes140/1401.51 (1.15–1.98)17/132.21 (0.89–5.48)12/81.74 (0.45–6.74)169/1611.56 (1.21–2.00)
First-degree family history of ovarian cancer
 No1,200/1,8221.00293/3671.00119/1391.001,612/2,3281.00
 Yes65/462.12 (1.40–3.21)15/132.38 (0.94–6.01)9/47.84 (1.66–37.0)89/632.26 (1.58–3.25)
Genital talc use
 None/<1 year744/1,3001.00189/2701.0067/801.001,000/1,6501.00
 Yes521/5681.41 (1.21–1.67)119/1101.77 (1.20–2.62)61/631.56 (0.80–3.04)701/7411.46 (1.27–1.69)
 Per 5 years talc1.14 (1.08–1.21)1.18 (1.02–1.36)1.15 (0.90–1.47)1.14 (1.09–1.20)
  • aRace/ethnic specific multivariate logistic regression analyses were jointly stratified for age group (<30, 5-year age groups to age 79), interviewer and study, and adjusted for menopausal status, age at menarche, hormone therapy use, BMI, income, education, and each of the six factors shown. In analyses on “all subjects,” we also jointly stratified by race/ethnicity.