Abstract
BackgroundWe aimed to determine whether the association between obesity and a range of adverse maternal and perinatal outcomes differed in South Asian and Australian and New Zealand born women.MethodsA retrospective cohort study of singleton births in South Asian (SA) and Australian/New Zealand (AUS/NZ) born women at an Australian hospital between 2009 and 2013. The interaction between maternal region of birth and obesity on a range of maternal and perinatal outcomes was assessed using multivariate logistic regression.ResultsObesity was more strongly associated with gestational hypertension/Preeclampsia/HELLP and Gestational Diabetes Mellitus in AUS/NZ born women (p = 0.001 and p < 0.001, respectively for interaction) and was only associated with shoulder dystocia in SA born women (p = 0.006 for interaction). There was some evidence that obesity was more strongly related with admission to NICU/Special care nursery (SCN) (p = 0.06 for interaction) and any perinatal morbidity (p = 0.05 for interaction) in SA born women.ConclusionsInterventions targeted at reducing maternal obesity will have different impacts in SA compared to AUS/NZ born women.
Highlights
We aimed to determine whether the association between obesity and a range of adverse maternal and perinatal outcomes differed in South Asian and Australian and New Zealand born women
Many of the adverse outcomes associated with maternal obesity, such as stillbirth, gestational diabetes mellitus (GDM), and operative delivery [1], are more common in Asian women, with some of the highest rates of poor outcome seen in south Asian(SA) born women with obesity [2, 3]
18 768 (45 %) were to women born either in Australia or New Zealand (AUS/ NZ) and 8342 (20 %) were to women born in South Asian countries (SA)
Summary
We aimed to determine whether the association between obesity and a range of adverse maternal and perinatal outcomes differed in South Asian and Australian and New Zealand born women. Maternal obesity has emerged as one of the key contributors to adverse pregnancy outcomes in high-income nations [1], with no evidence that this trend is likely to reverse in the near future. In these countries almost half of women enter pregnancy with a body mass index (BMI) of 25 or more [1]. Davies-Tuck et al BMC Pregnancy and Childbirth (2016) 16:288 undertook this study to determine whether the association between maternal obesity and a range of adverse maternal and perinatal outcomes differed in South Asian and Australian born women
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