To the Editor Dr Villamor and colleagues1 investigated the association between maternal body mass index (BMI) and incidence of cerebral palsy in offspring and found that overweight and obesity in early pregnancy was associated with an increased rate of cerebral palsy. Important confounding factors, including maternal diabetes and hypertension, were not considered in their statistical analyses.
Li Y, Li Y. Maternal Obesity and Cerebral Palsy in Offspring. JAMA. 2017;317(24):2549–2550. doi:10.1001/jama.2017.5975
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