[Study on subcretin in 8 minorities of Yunnan province].
OBJECTIVE
To estimate the prevalence of subcretins in 8 minorities of Yunnan province and to provide scientific basis for public health policy-making, as well as for prevention and control of iodine deficiency disorders.


METHODS
Four thousand two hundred and twenty-two minority school children aged 8-12 years selected from 29 schools in 8 minority counties were measured by Combined Raven's Test in China (CRT-C(2)) and Jinyi Psychomotor test Battery (JPB).


RESULTS
Average of intelligence quotient (IQ) on 4,222 children was 91 +/- 19. Among 277 pupils with IQ between 55 - 69, 119 of them showed abnormal on JPB test and 5.4% of the children was found to have Goiter under ultrasonography. Median level of urinary iodine was 466.9 microg/L, and the qualified rate of iodized salt was 94.9%.


CONCLUSIONS
The estimated prevalence rate of subcretin was 2.8%.
Wang
Shan-shan
SS
Yunnan Provincal Health & Anti-epidemic Center, Kunming 650022, China.
Lu
Lin
L
Wang
Xi-rong
XR
Ning
Lan
L
Bai
Bin
B
Jiang
Du-qiang
DQ
Wang
Mei
M
An
Guang-wu
GW
D002648:Child; D002657:Child Development; D002681:China / Q000453:epidemiology; D003409:Congenital Hypothyroidism / Q000453:epidemiology*; D005006:Ethnicity; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D015995:Prevalence