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徐汇区1983年出生的,出生体重小于2500g的小儿共190例,进行了连续5年智力发育纵向随访。并随机选择71例足月正常出生体重儿为对照组。两组小儿在16周、28周、40周、52周、18月、24月、36月用Gesell发育诊断法进行测试,5岁用WPPSI作智测。测试结果显示低出生体重儿组,16周～5岁发育商(或智商)低于对照组,经统计处理差异有显著意义。5岁时总IQ≤85共15例,其中12例为70～85(临界),3例<50(中度智力低下)。并分析了低出生体重儿组出生体重与智力发育的关系。
Xuhui District, born in 1983, birth weight less than 2500g in a total of 190 cases of children, for 5 consecutive years of longitudinal longitudinal intellectual development. And 71 cases of full-term normal birth weight children were selected as the control group. The two groups of children were tested by Gesell’s developmental diagnosis method at 16 weeks, 28 weeks, 40 weeks, 52 weeks, 18 months, 24 months and 36 months. The age of 5 was measured by WPPSI. Test results show that low birth weight infants, 16 weeks to 5-year-old developmental providers (or IQ) lower than the control group, the statistical difference was significant. There were 15 cases of total IQ ≤ 85 at age 5, of which 12 were 70 to 85 (critical) and 3 were <50 (moderate mental retardation). And analyzed the relationship between birth weight and mental development in low birth weight infants.