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Brenda J Wilson a Department of Public Health, University of
Aberdeen, Foresterhill, Aberdeen AB25 2ZD, b Department of
Obstetrics and Gynaecology, University of Aberdeen, c Department of General Practice and
Primary Care, University of Aberdeen
Correspondence to: W C S
Smith w.c.s.smith{at}abdn.ac.uk
Objective:
To examine the association between
hypertensive diseases of pregnancy (gestational hypertension and
pre-eclampsia) and the development of circulatory diseases in later life.
What is already known on this topic
Retrospective studies, based on patient recall, suggest that
hypertension in pregnancy may be associated with increased risk of
cardiovascular diseases in later life What this study adds
Women who experience raise blood pressure in pregnancy have an
increased risk of stroke and, to a lesser extent, an increased risk of
ischaemic heart disease Long term cardiovascular risks are greater for women who had
pre-eclampsia than those who experienced gestational hypertension
(hypertension without proteinuria)
Design:
Cohort study of women who had pre-eclampsia during their first singleton pregnancy. Two comparison groups were
matched for age and year of delivery, one with gestational hypertension
and one with no history of raised blood pressure.
Setting:
Maternity services in the Grampian region of Scotland.
Participants:
Women selected from the Aberdeen
maternity and neonatal databank who were resident in Aberdeen and who
delivered a first, live singleton from 1951 to 1970.
Main outcome measures:
Current vital and
cardiovascular health status ascertained through postal questionnaire
survey, clinical examination, linkage to hospital discharge, and
mortality data.
Results:
There were significant positive associations between pre-eclampsia/eclampsia or gestational hypertension and later
hypertension in all measures. The adjusted relative risks varied from
1.13-3.72 for gestational hypertension and 1.40-3.98 for pre-eclampsia
or eclampsia. The adjusted incident rate ratio for death from stroke
for the pre-eclampsia/eclampsia group was 3.59 (95% confidence
interval 1.04 to 12.4).
Conclusions:
Hypertensive diseases of pregnancy seem
to be associated in later life with diseases related to hypertension. If greater awareness of this association leads to earlier diagnosis and
improved management, there may be scope for reducing a proportion of
the morbidity and mortality from such diseases.
Much is known about the effect of cardiovascular risks factors that are
shared by men and women, but less on those specific to women
Prospective recording of blood pressure and proteinuria shows that
women who experienced raised blood pressure in pregnancy have a long
term risk of hypertension
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