Pregnancy, Childbirth, and the Pueperium

Abstract

First our analyses focused on cases with CA but case-control studies also needed matched controls without CA. The control group of HCCSCA also helped us to evaluate PB and LBW. The third aspect of our analysis was the evaluation of pregnancy complications as possible co-morbidities of maternal diseases. In these studies we only used medically recorded information from the prenatal maternity logbook because in our validation studies the retrospective maternal information proved to be inaccurate regarding to the diagnoses of maternal illnesses and were significantly distorted by recall bias.