Nabhani-Zeidan Maya, Naja Farah, Nasreddine Lara
Department of Nutrition and Food Science, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon.
Food Nutr Bull. 2011 Jun;32(2):75-83. doi: 10.1177/156482651103200201.
Socioeconomic status (SES) is postulated to be a major predictor of dietary intake and nutrition-related knowledge in adults. To date, very few studies have addressed this effect among adolescents.
To explore differences in nutrient intake and nutrition-related knowledge among adolescents of contrasting SES in Lebanon.
In a cross-sectional survey, 209 males and females, aged 17 to 19 years, were recruited from a private university with high tuition and a free public university in Beirut. The participants completed a multicomponent, self-administered questionnaire that inquired about demographic characteristics and nutrition-related knowledge. Three nonconsecutive 24-hour dietary recalls were obtained through interviews. Energy-adjusted means of dietary intake and age-adjusted nutrition-related knowledge were compared between groups using a general linear model.
Adolescents in the high-SES group consumed more vegetables, meats, and fats and oils (p < .05). Energy and nutrient intake analysis showed that adolescents in the high-SES group consumed significantly higher amounts of calories, protein, fat, vitamin A, vitamin C, and iron (p < .001) and significantly lower amounts of carbohydrates (p < .05). Nutritional knowledge, although high among all participants, was higher in the high-SES group (p < .05).
Although both groups showed good nutrition-related knowledge, SES significantly affected dietary intake in a sample of Lebanese adolescents. This warrants consideration of other factors, such as cost and environment, that may modulate eating behavior among adolescents from different socioeconomic strata.
社会经济地位（SES）被认为是成年人饮食摄入量和营养相关知识的主要预测指标。迄今为止，很少有研究探讨青少年中的这种影响。
探讨黎巴嫩不同社会经济地位青少年在营养摄入和营养相关知识方面的差异。
在一项横断面调查中，从贝鲁特一所高学费私立大学和一所免费公立大学招募了209名17至19岁的男性和女性。参与者完成了一份多部分的自填问卷，询问了人口统计学特征和营养相关知识。通过访谈获得了三次非连续的24小时饮食回忆。使用一般线性模型比较了两组之间饮食摄入量的能量调整均值和年龄调整后的营养相关知识。
高社会经济地位组的青少年摄入了更多的蔬菜、肉类以及油脂（p < 0.05）。能量和营养摄入分析表明，高社会经济地位组的青少年摄入的卡路里、蛋白质、脂肪、维生素A、维生素C和铁的量显著更高（p < 0.001），而碳水化合物的摄入量显著更低（p < 0.05）。营养知识在所有参与者中都较高，但在高社会经济地位组中更高（p < 0.05）。
尽管两组都表现出良好的营养相关知识，但社会经济地位在黎巴嫩青少年样本中显著影响饮食摄入量。这需要考虑其他因素，如成本和环境，这些因素可能会调节来自不同社会经济阶层的青少年的饮食行为。
