Opioid use has reached historically high levels across the United States and infants exposed during pregnancy are at risk of developing a drug withdrawal syndrome called neonatal abstinence syndrome (NAS). The prevalence of birth defects among Illinois infants exhibiting NAS has not been estimated.

中文翻译：

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2015-2016 年伊利诺伊州新生儿戒断综合征婴儿的出生缺陷流行率。

在美国，阿片类药物的使用已达到历史最高水平，怀孕期间接触阿片类药物的婴儿有患上称为新生儿戒断综合征 (NAS) 的药物戒断综合征的风险。伊利诺伊州患有 NAS 的婴儿出生缺陷的患病率尚未估计。