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Effect of maternal stress during pregnancy on the risk for preterm birth
Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Sciences. Region Östergötland, Center of Paediatrics and Gynaecology and Obstetrics, Department of Gynaecology and Obstetrics in Linköping. Linköping University, Faculty of Medicine and Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Sciences. Linköping University, Faculty of Medicine and Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Sciences. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center of Paediatrics and Gynaecology and Obstetrics, Department of Gynaecology and Obstetrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Sciences. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center of Paediatrics and Gynaecology and Obstetrics, Department of Gynaecology and Obstetrics in Linköping.
2016 (English)In: BMC Pregnancy and Childbirth, ISSN 1471-2393, E-ISSN 1471-2393, Vol. 16, no 5Article in journal (Refereed) Published
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Abstract [en]

Background: Preterm birth defined as birth prior to 37 weeks of gestation is caused by different risk factors and implies an increased risk for disease and early death for the child. The aim of the study was to investigate the effect of maternal stress during pregnancy on the risk of preterm birth. Methods: A case-control study that included 340 women; 168 women who gave birth preterm and 172 women who gave birth at term. Data were manually extracted from standardized medical records. If the medical record contained a psychiatric diagnosis or a self-reported stressor e.g., depression or anxiety the woman was considered to have been exposed to stress during pregnancy. Adjusted odds ratio (AOR) was used to calculate the attributable risk (AR) of maternal stress during pregnancy on preterm birth, both for the women exposed to stress during pregnancy (AR1 = (AOR-1)/AOR) and for the whole study population (AR2 = AR1*case fraction). Results: Maternal stress during pregnancy was more common among women who gave birth preterm compared to women who gave birth at term (p <0.000, AOR 2.15 (CI = 1.18-3.92)). Among the women who experienced stress during pregnancy 54 % gave birth preterm with stress as an attributable risk factor. Among all of the women the percentage was 23 %. Conclusions: Stress seems to increase the risk of preterm birth. It is of great importance to identify and possibly alleviate the exposure to stress during pregnancy and by doing so try to decrease the preterm birth rate.

Place, publisher, year, edition, pages
BIOMED CENTRAL LTD , 2016. Vol. 16, no 5
Keyword [en]
Premature birth; Stress; Pregnancy; Attributable risk
National Category
Clinical Medicine
Identifiers
URN: urn:nbn:se:liu:diva-124632DOI: 10.1186/s12884-015-0775-xISI: 000368071000001PubMedID: 26772181OAI: oai:DiVA.org:liu-124632DiVA: diva2:901779
Note

Funding Agencies|The Medical Research Council of Southeast Sweden

Available from: 2016-02-09 Created: 2016-02-08 Last updated: 2017-11-30

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Lilliecreutz, CarolineSydsjö, GunillaJosefsson, Ann

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Division of Clinical SciencesDepartment of Gynaecology and Obstetrics in LinköpingFaculty of Medicine and Health Sciences
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