1 Department of Pediatrics, USDA/ARS Children's Nutrition Research Center at Baylor College of Medicine, 1100 Bates Avenue, Houston, TX 77030, USA.
Public Health Nutr. 2013 Dec;16(12):2169-77. doi: 10.1017/S1368980013001377. Epub 2013 May 24.
To examine the variability of food portions served and consumed by African-American and Hispanic-American pre-school children attending Head Start.
Cross-sectional.
Food consumption by pre-schoolers (n 796) enrolled in sixteen Head Start centres in Houston, Texas (51 % boys, 42 % African-American, mean age 4 years) were assessed during 3 d of lunch meals using digital photography. Descriptive statistics and multilevel regression models, adjusting for classroom and school clustering effects, were determined.
Head Start pre-schoolers aged 3–5 years.
Mean amount served was 2428 kJ (580 kcal) and 572 g. Mean intake was 1421 kJ (339 kcal) and 331 g: 20 % protein, 46 % carbohydrate and 34 % fat. Plate waste was 43 % (range: 38 % (fruit) to 61 % (vegetables)). Mean CV of food served was 29 %: 33 % for entrées, 44 % for vegetables, 60 % for fruit and 76 % for starches. Mean CV of food consumed was 46 %: 58 % for entrées, 86 % for fruit, 96 % for vegetables and 111 % for starches. Total gram amount of food served was positively correlated with consumption (r = 0·43, P < 0·001).
Plate waste and variation in amounts served and consumed were substantial; amounts served were associated with amounts consumed. Large portion sizes may contribute to paediatric obesity by promoting excessive intake at meals. Understanding factors influencing portion sizes provides insight about specific intervention strategies that can be used in obesity prevention programmes.
研究参加“头等大事”(Head Start)计划的非裔美国人和西班牙裔美国学龄前儿童所食用的食物份量的可变性。
横断面研究。
在德克萨斯州休斯顿的 16 个“头等大事”中心,通过数字摄影对 796 名入读该计划的学龄前儿童(51%为男孩,42%为非裔美国人,平均年龄 4 岁)的 3 天午餐进行了食物消耗评估。确定了描述性统计和多层次回归模型,以调整课堂和学校聚类效应。
年龄在 3-5 岁的“头等大事”学龄前儿童。
平均供应量为 2428 千焦耳(580 千卡)和 572 克。平均摄入量为 1421 千焦耳(339 千卡)和 331 克:蛋白质 20%、碳水化合物 46%和脂肪 34%。盘子浪费率为 43%(范围:38%(水果)至 61%(蔬菜))。食物供应的平均变异系数为 29%:主菜为 33%,蔬菜为 44%,水果为 60%,淀粉类食物为 76%。食物消耗的平均变异系数为 46%:主菜为 58%,水果为 86%,蔬菜为 96%,淀粉类食物为 111%。供应的食物总克数与消耗呈正相关(r=0.43,P<0.001)。
盘子浪费以及供应和消耗的数量变化都很大;供应数量与消耗数量相关。大份量可能会通过促进每餐摄入过量而导致儿童肥胖。了解影响份量的因素可以深入了解可用于肥胖预防计划的具体干预策略。