Risk estimates tended to be similar for ARS-L and ARS-NL cases but different for BWC cases, suggesting different etiologies. These data suggest that young maternal age, low maternal education, unplanned pregnancy, and non-white/non-Hispanic race/ethnicity might increase the risk of BWC in offspring. Inceased risks for acetaminophen use should be interpreted with caution because they may be confounded by indication for use.
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Werler et al. (2003) studied this question.
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