a Adjusted for age category (23-26, 27-30, 31-34), education (high school or less, some education beyond high school, college degree) and parity (parous, nulliparous). Analysis for N=1195 due to one o
†Adjusted odds ratio; adjusted for age, gender, SES, and site type.‡Fisher's exact test for difference of proportions.NB: Different Ns are due to different question non-response rates.Association betw
