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Socioeconomic disparities in prepregnancy BMI and impact on maternal and neonatal outcomes and postpartum weight retention: the EFHL longitudinal birth cohort study


Ng, S-K and Cameron, CM and Hills, AP and McClure, RJ and Scuffham, PA, Socioeconomic disparities in prepregnancy BMI and impact on maternal and neonatal outcomes and postpartum weight retention: the EFHL longitudinal birth cohort study, BMC Pregnancy and Childbirth, 14 pp. 1-15. ISSN 1471-2393 (2014) [Refereed Article]

DOI: doi:10.1186/1471-2393-14-314


Background: Long-term obesity after pregnancy is associated with obesity prior to pregnancy and retention of weight postpartum. This study aims to identify socioeconomic differences in prepregnancy body mass index, quantify the impact of prepregnancy obesity on birth outcomes, and identify determinants of postpartum weight retention.

Methods: A total of 2231 pregnant women, recruited from three public hospitals in Southeast Queensland in Australia during antenatal clinic visits, completed a questionnaire to elicit information on demographics, socioeconomic and behavioural characteristics. Perinatal information was extracted from hospital records. A follow-up questionnaire was completed by each participant at 12 months after the birth to obtain the motherís postpartum weight, breastfeeding pattern, dietary and physical activity characteristics, and the childís health and development information. Multivariate logistic regression method was used to model the association between prepregnancy obesity and outcomes.

Results: Being overweight or obese prepregnancy was strongly associated with socioeconomic status and adverse behavioural factors. Obese women (18% of the cohort) were more likely to experience gestational diabetes, preeclampsia, cesarean delivery, and their children were more likely to experience intensive- or special-care nursery admission, fetal distress, resuscitation, and macrosomia. Women were more likely to retain weight postpartum if they consumed three or fewer serves of fruit/vegetables per day, did not engage in recreational activity with their baby, spent less than once a week on walking for 30 minutes or more or spent time with friends less than once per week. Mothers who breastfed for more than 3 months had reduced likelihood of high postpartum weight retention.

Conclusions: Findings provide additional specificity to the increasing evidence of the predisposition of obesity prepregnancy on adverse maternal and perinatal outcomes. They may be used to target effective behavioural change interventions to address obesity in women.

Item Details

Item Type:Refereed Article
Keywords:Birth cohort, Obesity, Postpartum weight retention, Body mass index, Obstetric-neonatal outcome
Research Division:Health Sciences
Research Group:Health services and systems
Research Field:Health services and systems not elsewhere classified
Objective Division:Health
Objective Group:Evaluation of health and support services
Objective Field:Social structure and health
UTAS Author:Hills, AP (Professor Andrew Hills)
ID Code:109218
Year Published:2014
Web of Science® Times Cited:65
Deposited By:Health Sciences
Deposited On:2016-06-03
Last Modified:2017-11-06

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