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Racial/ethnic differences in the epidemiology of ovarian cancer: a pooled analysis of 12 case-control studies.

Abstract：

Background:Ovarian cancer incidence differs substantially by race/ethnicity, but the reasons for this are not well understood. Data were pooled from the African American Cancer Epidemiology Study (AACES) and 11 case-control studies in the Ovarian Cancer Association Consortium (OCAC) to examine racial/ethnic differences in epidemiological characteristics with suspected involvement in epithelial ovarian cancer (EOC) aetiology. Methods:We used multivariable logistic regression to estimate associations for 17 reproductive, hormonal and lifestyle characteristics and EOC risk by race/ethnicity among 10 924 women with invasive EOC (8918 Non-Hispanic Whites, 433 Hispanics, 911 Blacks, 662 Asian/Pacific Islanders) and 16 150 controls (13 619 Non-Hispanic Whites, 533 Hispanics, 1233 Blacks, 765 Asian/Pacific Islanders). Likelihood ratio tests were used to evaluate heterogeneity in the risk factor associations by race/ethnicity. Results:We observed statistically significant racial/ethnic heterogeneity for hysterectomy and EOC risk (P = 0.008), where the largest odds ratio (OR) was observed in Black women [OR = 1.64, 95% confidence interval (CI) = 1.34-2.02] compared with other racial/ethnic groups. Although not statistically significant, the associations for parity, first-degree family history of ovarian or breast cancer, and endometriosis varied by race/ethnicity. Asian/Pacific Islanders had the greatest magnitude of association for parity (≥3 births: OR = 0.38, 95% CI = 0.28-0.54), and Black women had the largest ORs for family history (OR = 1.77, 95% CI = 1.42-2.21) and endometriosis (OR = 2.42, 95% CI = 1.65-3.55). Conclusions:Although racial/ethnic heterogeneity was observed for hysterectomy, our findings support the validity of EOC risk factors across all racial/ethnic groups, and further suggest that any racial/ethnic population with a higher prevalence of a modifiable risk factor should be targeted to disseminate information about prevention.

journal_name

Int J Epidemiol

journal_title

International journal of epidemiology

authors

Peres LC,Risch H,Terry KL,Webb PM,Goodman MT,Wu AH,Alberg AJ,Bandera EV,Barnholtz-Sloan J,Bondy ML,Cote ML,Funkhouser E,Moorman PG,Peters ES,Schwartz AG,Terry PD,Manichaikul A,Abbott SE,Camacho F,Jordan SJ,Nagle C

doi

10.1093/ije/dyx252

subject

Has Abstract

pub_date

2018-04-01 00:00:00

pages

460-472

issue

eissn

0300-5771

issn

1464-3685

pii

4683726

journal_volume

pub_type

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Racial/ethnic differences in the epidemiology of ovarian cancer: a pooled analysis of 12 case-control studies.