Prefecture Examined counties Examined No. No. of slight mental retardation(≤69) Proportion of slight mental retardation(%) Average level of intelligence Kashi 12 6974 1353 20.8 79.7 Kizilsu Kirgiz 4 2428 568 23.4 80.0 Total 16 9402 1921 18.4 80.9

Table 3: Findings of Intelligence of School children