Delayed childbearing and risk of adverse perinatal outcome: a population-based study
S Cnattingius, MR Forman, HW Berendes, L Isotalo - Jama, 1992 - jamanetwork.com
Objective.—To investigate the effect of advancing maternal age on pregnancy outcome
among healthy nulliparous women, after adjustment for demographic characteristics,
smoking, history of infertility, and other medical conditions. Design.—A population-based
cohort study was conducted with prospectively collected data from the Swedish Medical
Birth Register. Patients.—Nulliparous Nordic women (N= 173715), aged 20 years and
above, who delivered single births at Swedish hospitals from 1983 through 1987. Outcome …
among healthy nulliparous women, after adjustment for demographic characteristics,
smoking, history of infertility, and other medical conditions. Design.—A population-based
cohort study was conducted with prospectively collected data from the Swedish Medical
Birth Register. Patients.—Nulliparous Nordic women (N= 173715), aged 20 years and
above, who delivered single births at Swedish hospitals from 1983 through 1987. Outcome …