Bakr E M, Ismail N A, Mahaba H M
Department of Community, Occupational, and Environmental Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
J Egypt Public Health Assoc. 2002;77(1-2):29-49.
This cross sectional study was carried out to assess the nutritional status of medical students and to determine its relation to their life style. The study involved 317 students at, Am Shams University. Anthropometric measurements such as weight, height, mid-arm circumference, triceps skin fold thickness and body mass index were measured. The students completed a self-administered questionnaire including data about some life style factors and food-frequency consumption. The study revealed that 41.3% of the students were of normal weight while 9.5% of the sample were underweight, 36.9% were overweight and 12.5% were obese. The mean mid upper arm circumference (MUAC) and mid arm muscle circumference (MAMC) of males was significant higher than that of females, while the mean triceps skin fold (TSF) of females was significant higher than that of males. The food frequency questionnaire analysis showed that most of students consume all food groups items faire. There was no statistical significant difference between the body mass index (BMI) of students and different types of food consumption. About two thirds of the students used to practice exercise, 26.9% of the students practiced exercise for less than 2 hours per week, while 33.9% of them for more than 2 hours. There was no statistical significant difference between the BMI of students and different types of exercise. However, there was significant higher percentage of males play sports and practice running (44.7% and 19.4% respectively) compared to (11.7% and 8.1%) of females. Sixty four percent of the students usually have regular meals. About 87.2% of obese compared to 64.9% of normal weight students eat snacks between meals, the difference was statistically significant. Obese individuals eat more during watching television and during feeling of stress compared to non-obese and the difference was statistically significant. The duration of practicing exercise, sports and playing computer was significantly higher in males than females. However, the duration of watching television was significantly higher in females than males. Logistic regression analysis results showed that family history of obesity and some life style factors as duration of computer use, eating more during stress time and snacking between meals were important risk factors for obesity. We concluded that about half of medical students were overweight and obese. The most important life style factors responsible for obesity were longer time spent using computer, eating more during time of stress and snacking between meals. Also, genetic factors played an important role in development of obesity. It is recommended to develop nutritional education and physical activities programs to face the problem of increasing the rate of overweight and obesity among university students.
本横断面研究旨在评估医学生的营养状况,并确定其与生活方式的关系。该研究涉及艾因夏姆斯大学的317名学生。测量了体重、身高、上臂中部周长、肱三头肌皮褶厚度和体重指数等人体测量指标。学生们完成了一份自我管理的问卷,包括一些生活方式因素和食物频率消费的数据。研究显示,41.3%的学生体重正常,而样本中有9.5%体重过轻,36.9%超重,12.5%肥胖。男性的平均上臂中部周长(MUAC)和上臂中部肌肉周长(MAMC)显著高于女性,而女性的平均肱三头肌皮褶(TSF)显著高于男性。食物频率问卷分析表明,大多数学生各类食物摄入均衡。学生的体重指数(BMI)与不同类型的食物消费之间没有统计学上的显著差异。约三分之二的学生经常锻炼,26.9%的学生每周锻炼时间少于2小时,而33.9%的学生每周锻炼时间超过2小时。学生的BMI与不同类型的锻炼之间没有统计学上的显著差异。然而,与女性(分别为11.7%和8.1%)相比,男性进行体育运动和跑步的比例显著更高(分别为44.7%和19.4%)。64%的学生通常规律进餐。约87.2%的肥胖学生与64.9%的体重正常学生在两餐之间吃零食,差异具有统计学意义。与非肥胖者相比,肥胖者在看电视和感到压力时吃得更多,差异具有统计学意义。男性锻炼、运动和玩电脑的时间显著长于女性。然而,女性看电视的时间显著长于男性。逻辑回归分析结果表明,肥胖家族史以及一些生活方式因素,如使用电脑的时间、压力大时吃得更多以及两餐之间吃零食,是肥胖的重要危险因素。我们得出结论,约一半的医学生超重或肥胖。导致肥胖的最重要生活方式因素是使用电脑时间较长、压力大时吃得更多以及两餐之间吃零食。此外,遗传因素在肥胖的发生中也起到重要作用。建议开展营养教育和体育活动项目,以应对大学生中超重和肥胖率上升的问题。