- Women with a history of hypertension during pregnancy have a higher mortality rate from cardiovascular disease compared to women who are normotensive during pregnancy.
- Women who delivered at Royal Prince Alfred Women and Babies, Sydney Austrailia, between 1980 and 1989 provided the pregnancy cohort.
- A sub cohort of these women included those who were coded as having hypertension during pregnancy and a separate cohort that remained normotensive throughout pregnancy.
- The entire cohort was then linked to health registries (New South Wales Births, Deaths, Marriages Registry and the Australian Bureau Statistics Death Registry; linkage dates 1980-2009).
- Cardiovascular deaths were identified using ICD codes.
- 14% of this population were identified as having hypertension in pregnancy.
- Women with hypertension during pregnancy had a greater risk of death from cardiovascular disease than those who were normotensive during pregnancy (OR 1.56 CI 95% 1.28-1.89 p<0.001). ...0.001).