Fig. 2From: Age-period-cohort effects in pre-existing and pregnancy-associated diseases amongst primiparous womenPredicted probability of pre-existing and pregnancy-associated diseases by a Maternal age group, b Period of delivery, and c Maternal birth cohort (based upon age-period-cohort models adjusted for temporal trends in smoking and gestational weight gain) amongst primiparous women delivering singleton, liveborn infants in the USABack to article page