P42 Maternal chronic hypertension and the risk of adverse maternal and birth outcomes: a population-based study

Abstract

Background Chronic hypertension (CH) has been linked with adverse pregnancy outcomes, but it is unclear whether these associations are changing by maternal characteristics or over time.The objective of this study was to examine the association between maternal CH and adverse pregnancy outcomes, and to determine whether the risk varies over time. We also aimed to assess the associations according to maternal age (younger or ! 35 yrs.) and other maternal characteristics. Methods This population-based cohort study included women who had singleton births in Sweden between 1982 and 2012.

Perinatal outcomes of socially disadvantaged women in Australia: A population‐based retrospective cohort study

“…9,17,22,35,46 Similarly, other confounders were adjusted for based on their known impact on maternal and neonatal outcomes. These included maternal medical conditions (pre-existing diabetes mellitus, 47 gestational diabetes mellitus, 48 hypertension, 49 pre-eclampsia, 50 eclampsia 51 ), country of birth 52 (dichotomised as 'Australia [and territories]' and 'other'), birth type (dichotomised as 'caesarean birth -any type' [including elective or emergency caesarean] and 'vaginal birth -any type' [including normal vaginal or instrumental]), gestation (dichotomised as 'greater than or equal to 37 weeks' or 'preterm') and parity 53 (dichotomised as 'nullipara' and 'multipara').…”