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Consanguineous marriage, prepregnancy maternal characteristics and stillbirth risk: A population-based case-control study

Maghsoudlou, S. and Cnattingius, S. and Aarabi, M. and Montgomery, S.M. and Semnani, S. and Stephansson, O. and Wikström, A.-K. and Bahmanyar, S. (2015) Consanguineous marriage, prepregnancy maternal characteristics and stillbirth risk: A population-based case-control study. Acta Obstetricia et Gynecologica Scandinavica, 94 (10). pp. 1095-1101.

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Abstract

Introduction. Consanguineous marriage is associated with increased risks for congenital anomalies, low birthweight, and other adverse perinatal outcomes. In this population-based, case-control study we investigated the association between consanguineous marriage (first-cousin marriage) and stillbirth risk, using prospectively collected information from prepregnancy visits. Material and methods. From 2007 to 2009, we identified 283 stillbirths (cases) and 2088 randomly selected live control births through prepregnancy visits in rural Golestan, Iran. The associations between consanguinity and prepregnancy maternal characteristics and stillbirth risk were examined using multivariate logistic regression. Results. The rate of consanguineous marriage was 19.4% among cases and 13.6% among controls. Consanguinity was associated with increased stillbirth risk [odds ratio (OR) 1.53; 95% CI 1.10-2.14]. The association was significantly increased for preterm stillbirth (< 37 gestational weeks) (OR 2.43; 95% CI 1.46-4.04) but not for term stillbirth (≥ 37 weeks) (OR 1.14; 95% CI 0.75-1.74). Low and high maternal age, underweight, obesity, nulliparity, a history of infertility or miscarriage, previous obstetric complications (preeclampsia, preterm delivery, and stillbirth in previous pregnancies) were also associated with increased stillbirth risks. Conclusions. Consanguineous marriage is associated with increased risk of stillbirth, particularly preterm stillbirth. Findings for other maternal risk factors for stillbirth in rural Iran are consistent with previously reported findings from high-income countries. © 2015 Nordic Federation of Societies of Obstetrics and Gynecology.

Item Type: Article
Additional Information: cited By 1
Uncontrolled Keywords: adult; Article; consanguineous marriage; consanguinity; controlled study; female; female infertility; gestational age; high risk pregnancy; human; Iran; live birth; major clinical study; maternal age; maternal obesity; medical history; nullipara; population based case control study; preeclampsia; pregnancy complication; premature labor; prenatal period; priority journal; rural area; spontaneous abortion; stillbirth; underweight; young adult; adolescent; case control study; consanguinity; epidemiology; genetics; risk factor; stillbirth, Adolescent; Adult; Case-Control Studies; Consanguinity; Female; Gestational Age; Humans; Iran; Risk Factors; Stillbirth; Young Adult
Subjects: مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
Divisions: معاونت تحقیقات و فناوری
Depositing User: GOUMS
Date Deposited: 08 Sep 2016 10:07
Last Modified: 24 Dec 2016 08:56
URI: http://eprints.goums.ac.ir/id/eprint/4663

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