*Multinomial logistic regression model. Adjusted for age (10-year age groups), smoking habit status (never vs. ever), oral contraceptive use (never vs. ever), number of child births (0, 1, 2, ≥3), phy
OR Odds ratio. CI Confidence interval. & Mandatory variable. #Due to a contingency coefficient of 1.0 of sed, sej, ser, only sed was included in the multivariable logistic regression model.
