Correlation between nutritional status and dietary behavior of college students in a medical college in Guangzhou

Abstract

Objective To evaluate the nutritional status, food intake, eating behavior and physical activity level of college students in a medical college in Guangzhou, and to explore its association with dietary behavior.

Methods A total of 263 students selected using stratified random sampling method from a medical college in Guangzhou were investigated by questionnaire from October to December in 2019. Chi-square test and Wilcoxon test were used to analyze group differences. Multivariate Logistic regression was used to analyze associated factors with thinness, overweight and obesity.

Results The rate of thinness was 25.5%, and the rate of overweight and obesity was 11.8%. The intake of cereals, fruits, eggs, livestock, fried foods and carbonated drinks varied significantly by gender ( U = 3 278.00, 5 224.50, 5 981.00, 6 663.00, 5 460.00, 3 873.00, P<0.05). There was significant difference in total physical activity level in different grades ( U = 4 239.50, P<0.05). Multivariate analysis showed that egg intake was negatively correlated with emaciation ( OR = 0.20, P<0.01). Picky eating and partial eating were positively correlated with emaciation ( OR = 2.96, P<0.01). Eating fast was positively correlated with overweight and obesity ( OR = 5.35, P<0.05).

Conclusion The detection rate of malnutrition among college students in this college is relatively high, and dietary behavior is associated with thinness, overweight and obesity.

Abstract

【摘要】 目的 评价医科院校大学生的营养状况、食物摄人、饮食行为和体力活动水平, 并探究与膳食行为的关联, 为开 展具有针对性的营养干预和营养教育提供参考依据。 方法 2019 年 10—12 月, 分层随机抽取广州市某医科院校 263 名学 生进行问卷调査与体格测量, 采用 χ ² 检验、Wilcoxon 检验比较组间差异, 多因素 Logistic 回归分析调査对象消瘦、超重及肥 胖的影响因素。 结果 大学生消瘦检出率为 25.5%, 超重及肥胖率为 11.8%。不同性别学生谷薯类、水果类、蛋类、禽畜 类、油炸食品、碳酸饮料的摄人量差异均有统计学意义 ( U 值分别为 3 278.00, 5 224.50, 5 981.00, 6 663.00, 5 460.00, 3 873.00, P 值均<0.05)。不同年级大学生总体力活动水平差异有统计学意义 ( U = 4 239.50, P<0.05)。多因素 Logistic 回 归分析显示, 蛋类摄人较多与消瘦呈负向关联 ( OR = 0.20); 挑食偏食与消瘦呈正向关联 ( OR = 2.96); 进食速度快与超重及 肥胖正向关联 ( OR = 5.35) ( P 值均<0.05)。 结论 该校大学生营养不良检出率较髙, 膳食行为与消瘦、超重及肥胖关联。