Department of Nutrition and Dietetics, Harokopio University, Athens, Greece.
J Nutr Educ Behav. 2012 May-Jun;44(3):233-9. doi: 10.1016/j.jneb.2010.02.005. Epub 2011 Feb 5.
To quantify food consumption (based on food group classification) during several time periods in a sample of adolescents and to identify potential differences in food patterns between normal-weight and overweight participants.
Cross-sectional study. Participants were classified as normal weight and overweight/obese. Dietary intake was assessed by 3-day food records and analyzed at the food group level for 7 different time periods. To exploit the time dimension of the data and to further control for the influence of other covariates, the authors estimated a random effects regression model for panel data.
One hundred twenty students.
Two high schools.
In multivariate analysis, no statistically significant differences were found between normal-weight and overweight adolescents with regard to their consumption patterns throughout the day. However, compared to females, male participants had higher intake of all food groups with the exception of fruit, and adolescents engaging in vigorous exercise tended to consume more servings from all food groups during any given time period.
No preferential use of some food or food groups in specific day periods was found among overweight compared to normal-weight high school students.
在青少年样本中,定量分析几个时间段的食物消费(基于食物组分类),并确定正常体重和超重参与者之间食物模式的潜在差异。
横断面研究。参与者被分为正常体重和超重/肥胖。通过 3 天的食物记录评估膳食摄入量,并在 7 个不同时间段进行食物组水平分析。为了利用数据的时间维度,并进一步控制其他协变量的影响,作者估计了面板数据的随机效应回归模型。
120 名学生。
两所高中。
在多变量分析中,正常体重和超重青少年全天的消费模式没有统计学上的显著差异。然而,与女性相比,男性参与者除水果外,所有食物组的摄入量都更高,而进行剧烈运动的青少年在任何给定时间内,所有食物组的摄入量都更高。
与正常体重的高中生相比,超重的高中生在特定的日期间并没有优先选择某些食物或食物组。