The Gut Microbiota and Oxidative Stress in Autism Spectrum Disorders (ASD)

Table 1

Summary of the Prevalence of ASD in different areas.

Country	Age range studied	Number of children in population	Criteria used	Methodology used	ASD prevalence (CI)
USA	8	346,978	DSM-IV	Case enumeration and record review	14.6 (8.2-24.6)
Faroe Islands	7 to 16	7122	DSM-IV, ICD-10	Screening and direct exam	5.6
Denmark	N/A	404,816	DSM-IV	Case enumeration	6.9 (6.5-7.2)
Oman	0 to 14	798,913	DSM-IV	Case enumeration	0.1 (0.1-0.2)
Taiwan	0 to 18	372,642	ICD-9	Case enumeration	2.9
South Korea	7 to 12	55,266	DSM-IV	Case enumeration from survey and direct exam	26.4 (19.1-33.7)
Western Australia	N/A	152,060	DSM-IV	Case enumeration	5.1 (4.7-5.5)

Note: data are from the US Center for Disease Control and Prevention (CDC https://www.cdc.gov/). N/A: not applicable, i.e., the lack of data in a form or table.