Hypertensive disorders of pregnancy and future health and mortality: a record linkage study

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Abstract

The objective of this register-based cohort study was to examine the relationship between hypertensive disorders of pregnancy and future hospital discharges from specified causes including cardiovascular disease, incident cancer registrations and mortality. From the Aberdeen Maternity and Neonatal Databank we identified 34,854 women who were born on or before 31st December 1967 and who had (i) preeclampsia/eclampsia, (ii) gestational hypertension or (iii) normal blood pressure in their first pregnancy. Hospital discharges from selected causes including cardiovascular disease, cancer registrations and deaths in these women were identified from the Scottish Morbidity Records.

There were 2026 women who had preeclampsia, 8891 who had gestational hypertension and 23,937 who were normotensive during their first pregnancy. Compared to normotensive women, women with preeclampsia had a higher mortality from ischaemic heart disease (adj. IRR 1.38, 95% CI 1.03, 1.84) and circulatory disease (adj. IRR 1.30, 95% CI 1.06, 1.60). Similar trends were seen with gestational hypertension. There was no difference in all cause mortality in the three groups. The odds of a hypertensive episode were higher in women with preeclampsia (adj. OR 1.79, 95% CI 1.55, 2.05) and gestational hypertension (adj. OR 1.68, 95% CI 1.55, 1.82) compared to normotensives. Compared to normotensives, women with gestational hypertension (adj. IRR 0.91, 95% CI 0.85, 0.96) or preeclampsia (adj. IRR 0.86, 95% CI 0.77, 0.97) had lower incidences of cancer.

Women with pregnancy induced hypertension are at a higher risk of incidence and mortality from ischaemic heart disease and a lower risk of cancer.

Keywords: Preeclampsia, Gestational hypertension, Mortality, Cancer, Cardiovascular disease

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalPregnancy Hypertension
Volume2
Issue number1
Early online date22 Aug 2011
DOIs
Publication statusPublished - Jan 2012

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Keywords

  • preeclampsia
  • gestational hypertension
  • mortality
  • cancer
  • cardiovascular disease

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