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Table 2 Studies on prevalence of autism in China

From: Current state and recent developments of child psychiatry in China

Time Region Definition Age (years) Screening (diagnose) instrument Sample size Prevalence (per 10,000) Gender ratio (M: F) Urban/rural ratio
2000 Fujian ASD 0-14 ABC (CCMD-2, DSM-III-R) 10802 2.80 1.77 (P > 0.05) 0.50 (P > 0.05)
2002 Changzhou ASD 2-6 CABS (CARS, CCMD-2-R) 3978 17.89 2.00 N/A
2003 Zunyi, Guizhou ASD 3-12 ABC (DSM-IV) 10412 5.76 N/A N/A
2004 Beijing PDD 2-6 CABS (CARS, DSM-IV) 21866 15.30 1.08 (P > 0.05) 1.38 (P > 0.05)
2004 Tianjin ASD 2-6 CABS (CARS, DSM-IV) 7316 11.00 6.00 (P < 0.05) 1.75 (P > 0.05)
2006 National based survey ASD associated disability 0-17 Screen for disability first (ICD-10) 77301 2.38 2.09 (P < 0.05) 1.03 (P > 0.05)
2010 Tianjin ASD 1.5-3 CHAT (CARS, DSM-IV) 8428 26.60 4.15 (P < 0.05) 0.61 (P > 0.05)
2014 Changchun ASD 0-6 ABC (CARS, CCMD-3) 9714 15.44 N/A N/A