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Occup Med (Lond). 2010 Jan;60(1):66-71. doi: 10.1093/occmed/kqp119. Epub 2009 Aug 21.

Working hours and risk of gestational hypertension and pre-eclampsia.

Author information

1
Department of Nursing, National Taipei College of Nursing, Taipei 11219, Taiwan.

Abstract

BACKGROUND:

The potential impact of employment on maternal health, particularly in relation to gestational hypertension and pre-eclampsia, has been subject to research. However, there is limited evidence on associations between shift work and long working hours on the incidence of these conditions.

AIMS:

To evaluate potential associations between maternal shift work and long working hours during pregnancy and gestational hypertension or pre-eclampsia.

METHODS:

Multistage stratified systematic sampling was used to recruit 24 200 post-partum women from the Taiwan national birth registration database in 2005. Subjects underwent home interview 6 months after their deliveries by structured questionnaire to obtain characteristics of maternal employment and potential confounders. Diagnosis of gestational hypertension and pre-eclampsia was obtained from the birth registration.

RESULTS:

There was no association between employment status and gestational hypertension or pre-eclampsia. Also, no significant association between gestational hypertension or pre-eclampsia and maternal shift work or long working hours during pregnancy was found in all or primiparous women.

CONCLUSIONS:

There was no convincing evidence that maternal shift work or long working hours had a higher risk of gestational hypertension or pre-eclampsia. However, further research is warranted to confirm these negative findings.

PMID:
19700491
DOI:
10.1093/occmed/kqp119
[Indexed for MEDLINE]

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