The puzzling association between smoking and hypertension during pregnancy

J Zhang, MA Klebanoff, RJ Levine, M Puri… - American journal of …, 1999 - Elsevier
Objective: The object of this study was to examine the association between maternal
smoking and hypertension during pregnancy. Study Design: We used data from the
Collaborative Perinatal Project, a large prospective cohort study that collected detailed
information on blood pressure, proteinuria, smoking, and placental morphologic and
histologic characteristics. A total of 9651 healthy primigravid women without chronic
hypertension who had been enrolled in the study at the first or second trimester (average 18 …