alexa Pre-pregnancy body mass index, weight change during pregnancy, and risk of intellectual disability in children.
Healthcare

Healthcare

Journal of Womens Health Care

Author(s): Mann JR, McDermott SW, Hardin J, Pan C, Zhang Z

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Abstract OBJECTIVE: This study investigated pre-pregnancy body mass index (BMI) and weight change in pregnancy as potential risk factors for intellectual disability (ID) in children. DESIGN: Retrospective cohort study. SETTING: South Carolina, USA. POPULATION: A total of 78,675 mother-child pairs, insured by the South Carolina Medicaid programme, born in the period 2004-2007. METHODS: We analysed South Carolina Medicaid data, linked to data from both the South Carolina Department of Education (DOE) and the South Carolina Department of Disabilities and Special Needs (DDSN). Maternal pre-pregnancy BMI and weight change during pregnancy were obtained from birth certificates. ID cases were identified from the three sources listed above. We used generalised estimating equation logistic regression models to model the odds of ID in children. MAIN OUTCOME MEASURES: Identified as having ID in special education, DDSN, or Medicaid billing records. RESULTS: The risk of ID was greater in children of women with pre-pregnancy obesity, and the risk was greatest in children born to women with morbid obesity (OR 1.52, 95\% CI 1.30-1.77 for ID of any severity; OR 1.73, 95\% CI 1.23-2.45 for severe ID). Gestational weight change (gain or loss) was not significantly associated with odds of ID. CONCLUSIONS: Pre-pregnancy obesity may be a modifiable risk factor for ID in children, although further study is needed to evaluate whether the association meets criteria for causation. © 2012 The Authors BJOG An International Journal of Obstetrics and Gynaecology © 2012 RCOG. This article was published in BJOG and referenced in Journal of Womens Health Care

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