The prevalence of autism spectrum disorders in China: a comprehensive meta-analysis.

Int J Biol Sci · 2018 · PMC6001678 · PMID 29910682

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an increasing trendno p-value reported

A number of epidemiological studies have found an increasing trend in prevalence of ASDs, for example, in the 1990s the prevalence rate of ASDs were 4-5 per 10,000 in the USA, as compared to 113 per 10,000 in 2008 4 .

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