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1991年3月,我们对重庆市沙坪坝区莲光小学的学生进行营养调查。其中包括用记录法对200名学生进行膳食调查。调查对象系按年级随机抽样。由家长连续七天逐餐记录学生摄入的饮食物名称和数量,然后由调查人员按《常用食物成份表》计算营养素摄入量。测定全校1681名学生的身高、体重,采用身高标准体重法,以1985年四川省城市小学生营养状况评价标准进行逐个评价。另对110名学生作血红蛋
In March 1991, we conducted a nutrition survey of students in Lian Guang Primary School, Shapingba District, Chongqing. This includes a dietary survey of 200 students by means of documentation. Subjects were randomized by grade. The parents recorded the names and quantities of food and drink consumed by students for meals continuously for seven consecutive days, and then the investigators calculated the nutrient intake according to the table of commonly used food ingredients. Determination of the school’s 1681 students in height and weight, the use of height standard weight method, in 1985 the city of Sichuan Province nutrition status assessment criteria for one by one evaluation. Another 110 students for the hemoglobin