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AuthorShaukat, Shazia
AuthorNur, Ula
Available date2019-09-18T06:00:31Z
Publication Date2019-09-01
Publication NameBMJ Openen_US
Identifierhttp://dx.doi.org/10.1136/bmjopen-2019-029757
CitationShaukat S, Nur UEffect of prepregnancy maternal BMI on adverse pregnancy and neonatal outcomes: results from a retrospective cohort study of a multiethnic population in QatarBMJ Open 2019;9:e029757. doi: 10.1136/bmjopen-2019-029757
URIhttp://hdl.handle.net/10576/11881
AbstractGiven the small number of studies on the topic, we aimed to identify the impact of prepregnancy maternal body mass index (BMI) on adverse pregnancy outcomes (POs) in a low-risk, multiethnic population, and to calculate related population attributable fractions (PAFs). This retrospective cohort study included 1134 nulliparous women of 50 nationalities (classified into Arab and non-Arab ethnicity) in Qatar who had their first antenatal visit at a Primary Healthcare Corporation (PHCC) facility in June 2016-March 2017 and their PO at a Hamad Medical Corporation facility before 10 November 2017. We used multiple imputation to handle missing values and multivariate logistic regression to calculate adjusted ORs (aORs) for adverse POs in overweight and women with obesity. Overweight Arab women and women with obesity were at high risk for gestational diabetes mellitus (GDM) (aOR=2.38, 95% CI 1.51 to 3.84) and caesarean section (aOR=1.57, 95% CI 1.00 to 2.48). Non-Arab women with obesity were at high risk for pre-eclampsia (aOR=3.83, 95% CI 1.00 to 15.00). PAFs showed that 41.63% of pre-eclampsia, 17.36% of pregnancy-induced hypertension, 17.17% of large for gestational age, 15.89% of preterm deliveries, 14.75% of GDM and 13.99% of caesarean sections could be avoided if all mothers had normal prepregnancy BMI. There were no major differences in PAFs by ethnicity. Adverse POs were attributable to maternal obesity. This suggests that, in contrast to existing PHCC protocol, overweight and women with obesity in Qatar should be targeted earlier in their pregnancy; preferably prior to getting pregnant. We observed ethnic differences in the risk of adverse POs.
SponsorThis work has been funded by Qatar University (grant no: QUST-1-CHS-2018-14) and Qatar National Library.
Languageen
PublisherBMJ Publishing Group
Subjectmaternal BMI
Subjectmaternal health
Subjectnulliparous
Subjectpregnancy outcomes
TitleEffect of prepregnancy maternal BMI on adverse pregnancy and neonatal outcomes: results from a retrospective cohort study of a multiethnic population in Qatar.
TypeArticle
Issue Number9
Volume Number9
dc.identifier.essn 2044-6055


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