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通过对北京市878名在培智学校就读的智力落后学生营养问题的调查研究发现:(1)北京市智力落后学生体型偏瘦的为48%,偏胖及肥胖的达到29.9%,“双峰现象”明显。(2)青春后期及以后,智力落后学生偏胖及肥胖的比例高于40%,体重增加过快。(3)在不同程度或不同性别的智力落后学生中,体型偏瘦是排在第一位的营养问题,排在营养过剩位于第二位,但在不同的群体中有差异。(4)智力落后学生身体质量指数及维尔维克指数随年龄增长的趋势与普通学生基本一致;智力落后学生身体质量指数及维尔维克指数在各年龄段的均值并没有表现出男高于女的特点,与普通学生不同;在8-18岁间,智力落后学生各年龄段的身体质量指数及维尔维克指数的均值高于普通学生。
Through the investigation on the nutrition problems of 878 mentally retarded students enrolled in Peizhi school in Beijing, we find: (1) The mentally retarded students in Beijing are 48% thinner and 29.9% fatter and obese, Phenomenon "obvious. (2) late youth and later, the proportion of over-fat students and obesity is higher than 40%, weight gain too fast. (3) In the mentally retarded students of different degrees or different genders, body weight loss is the number one nutrition problem, which is ranked in the second place with excess nutrition, but there are differences among different groups. (4) The trend of mental retardation student body mass index and Verwik index with age is basically the same as that of ordinary students. Mental retardation student body mass index and Verwik index did not show men higher than women at all ages , Which is different from ordinary students. During the period of 8 to 18 years old, Mental retardation students’ mean of body mass index and Verwik index of all ages is higher than that of ordinary students.