美国疾病控制与预防中心(CDC)今天发布了两年一次的美国儿童自闭症患病率评估更新。研究结果显示，2016年，每54名儿童中就有1名在8岁之前被诊断出自闭症谱系障碍，比2014年的估计增加了近10%，2014年的估计是每59名儿童中有1名。
The CDC released today its biennial update of autism’s estimated prevalence among US children. The findings show that 1 in 54 children had a diagnosis of ASD by age 8 in 2016, a nearly 10 percent increase over 2014 when the estimate was 1 in 59.
性别差异
数据显示，自闭症在男孩中的发病率是女孩的4倍多。
ASD is more than 4 times more common among boys than among girls.
地区
在亚洲、欧洲和北美的研究已经确定自闭症患者的平均患病率在1%到2%之间。
Studies in Asia, Europe, and North America have identified individuals with ASD with an average prevalence of between 1% and 2%.
发育障碍
在2009-2017年的一项研究期间，据家长报告，3-17岁的儿童中约有六分之一(17%)被诊断为发育障碍。其中包括自闭症、注意力缺陷/多动障碍、失明和脑瘫等。
About 1 in 6 (17%) children aged 3–17 years were diagnosed with a developmental disability, as reported by parents, during a study period of 2009-2017. These included autism, attention-deficit/hyperactivity disorder, blindness, and cerebral palsy, among others.
进展
自ADDM开始以来，首次在黑人和白人儿童中发现ASD的总体患病率没有统计学上的显著差异。自闭症患病率的这种逐渐缩小的差异可能意味着在更早、更公平地识别自闭症方面取得了进展。
For the first time since ADDM began, no statistically significant difference was found in the overall ASD prevalence among black and white children. This diminishing disparity in ASD prevalence might signify progress toward earlier and more equitable identification of ASD.
*什么是ADDM？
Autism and Developmental Disabilities Monitoring (ADDM)，自闭症和发育性残疾监测。
自闭症和发育性残疾监测(ADDM)网络是由美国疾病控制与预防中心（CDC）资助的一组项目，目的是估计生活在美国不同地区的自闭症谱系障碍(ASD)和其他发育性残疾儿童的数量。
数据资料来源
美国疾病控制与预防中心（CDC）官方网站
1.https://www.cdc.gov/mmwr/volumes/69/ss/ss6904a1.htm?s_cid=ss6904a1_w#F2_down
2.https://www.cdc.gov/ncbddd/autism/addm.html
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