Research Article

WWOX CNV-67048 Functions as a Risk Factor for Epithelial Ovarian Cancer in Chinese Women by Negatively Interacting with Oral Contraceptive Use

Table 2

Associations between WWOX CNV-67048 copy numbers and EOC risk and stages.

CNV-67048 genotypes (%) (%)Crude
OR (95% CI)
Adjusted
OR (95% CI)

Case-control studyPatientsControls
Total number 549571
 2-copy339 (61.75)397 (69.53)0.0051.000 (ref.)1.000 (ref.)
 1-copy181 (32.97)160 (28.02)1.325 (1.024–1.714)1.268 (0.967–1.663)
 0-copy29 (5.28)14 (2.45)2.425 (1.261–4.665)2.198 (1.111–4.348)
 1 + 0-copy210 (38.25)174 (30.47)1.413 (1.103–1.811)1.346 (1.037–1.747)
Trend test value0.0020.009

Case only studyStages III + IVStages I + II
Total number506430.308
 2-copy309 (61.07)30 (69.77)1.000 (ref.)1.000 (ref.)
 1-copy168 (33.20)13 (30.23)1.255 (0.637–2.470)1.330 (0.655–2.701)
 0-copy29 (5.73)0 (0.00)
 1 + 0-copy197 (38.93)13 (30.23)1.471 (0.749–2.888)1.554 (0.771–3.129)
Trend test value0.1290.112

Adjusted in a logistic regression model that included age, age at menarche, number of births, menstrual history, oral contraceptive use, family history of cancer, smoking status, and alcohol intake.