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为了了解和评价某医科大学学生的营养状况,针对存在的问题提出改进意见,于1985年5月至7月对该校学生进行了营养状况调查。调查内容和方法一、调查对象:在全校2308名学生中,按系级,以班为单位随机抽查在三个学生食堂就餐的学生473人,其中男264人,女209人,年龄19～22岁。二、膳食调查:采用五日称重法,查阅食物成分表计算各种营养素摄入量。三、体格检查:按全国营养调查确定的内容进行,随机抽取其中202人,用国产YA—Ⅱ型暗适应计测定暗适应时间,随机选21名
In order to understand and evaluate the nutritional status of students in a medical university, suggestions for improving the existing problems were put forward. From May to July 1985, the students’ nutritional status was investigated. Survey content and methods 1, the survey: 2308 students in the school, according to departmental level, to class as a random sample of 473 students dining in three student canteens, including 264 males and 209 females, aged 19 to 22 year old. Second, the dietary survey: The five-day weighing method, access to food composition table to calculate various nutrient intake. Third, the physical examination: According to the National Nutrition Survey to determine the content of which were randomly selected 202 people, with domestic YA-Ⅱ-type dark adaptation measured dark adaptation time, a random selection of 21