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选择改水、未改水氟病区及非病区7～14岁儿童,对其智力、体格发育水平进行测定比较.结果显示,病区未改水各年龄组平均智商均低于改水与非病区组(P<0.01);改水后出生的7～8岁儿童与非病区同龄组比较,差异无显著性;身高、体重、坐高改水与未改水病区组比较,有显著差异的年龄段是12～14岁;改水与非病区组比较,各年龄组间差异均无显著性.表明改水降氟可提高病区儿童智力与生长发育水平.
Choose to change the water, did not change the water area and non-fluorosis ward 7 to 14-year-old children, their intelligence and physical development levels were measured and compared.The results showed that the ward did not change the water of all age groups were lower than the average intelligence IQ (P <0.01). There was no significant difference between children aged 7-8 years old who were born after changing water and non-ward age group. There was no significant difference between height and weight, There were significant differences between the age groups of 12 to 14 years of age; water and non-ward groups, no significant difference between the age groups, indicating that water and fluoride can improve the ward children’s intelligence and growth and development levels.