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首页> 外文期刊>Preventive Medicine: An International Journal Devoted to Practice and Theory >Validity and reliability of a behavior-based food coding system for measuring fruit, 100% fruit juice, vegetable, and sweetened beverage consumption: results from the Girls Health Enrichment Multisite Studies.
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Validity and reliability of a behavior-based food coding system for measuring fruit, 100% fruit juice, vegetable, and sweetened beverage consumption: results from the Girls Health Enrichment Multisite Studies.

机译：基于行为的食品编码系统，用于测量水果，100％果汁，蔬菜和甜味饮料的食用量，其有效性和可靠性：来自Girls Health Enrichment Multisite Studies的结果。

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BACKGROUND: This paper presents the rationale, reliability, and validity of a behavior-based food coding system for measuring fruit (F), juice (J), vegetable (V), sweetened beverage, and water consumption in children. METHODS: Coding algorithms for FJV, sweetened beverages, and water were developed for use with the Nutrition Data System for Research (NDS-R). Two hundred and ten 8- to 10-year-old African American girls at four field centers completed two 24-h dietary recalls at baseline and at 12 weeks follow-up after a weight gain prevention intervention. Differences in mean baseline consumption of selected food variables and other selected nutrients across the four field centers were analyzed. Intraclass correlation coefficients (ICCs) for reliability across 2 days of food recalls and 12-week test-retest reliability correlations were calculated. For the purposes of this paper, nutrient intake estimates were considered construct validators of food intake, and validity was assessed by correlating the coded food variable servings with nutrient intake. RESULTS: ICCs varied from zero (0.001 for beta carotene equivalents) to moderate (0.44 for sucrose), indicating substantial instability in consumption or reporting. Twelve-week test-retest correlations were slight to moderate (0.09 for lycopene to 0.49 for folate). FJV consumption was negatively related to percent energy from fat (r = -0.28; P = 0.001) and positively related to other nutrients. Sweetened beverage consumption was positively related to energy, sucrose, fructose, and vitamin C consumption. CONCLUSIONS: This behavior-based food coding system demonstrated construct validity among 8- to 10-year-old African American girls and can measure the desired food groups.
机译：背景：本文介绍了一种基于行为的食品编码系统的原理，可靠性和有效性，该系统可测量儿童的水果（F），果汁（J），蔬菜（V），甜味饮料和水的消耗量。方法：开发了FJV，加糖饮料和水的编码算法，以与营养数据研究系统（NDS-R）一起使用。在预防体重增加干预措施之后，在四个现场中心的一百二十个8至10岁的非洲裔美国女孩在基线和随访12周时完成了两次24小时的饮食召回。分析了四个田间中心的选定食物变量和其他选定营养素的平均基准消费量差异。计算了食品召回2天和12周重测信度的可靠性的类内相关系数（ICC）。出于本文的目的，营养摄入量的估算被认为是食物摄入量的验证器，并且通过将编码的食物变量与营养摄入量相关联来评估有效性。结果：ICC从零（β-胡萝卜素当量为0.001）到中度（蔗糖为0.44）不等，表明消费或报告中存在很大的不稳定性。十二周的再测相关性为轻度至中度（番茄红素为0.09，叶酸为0.49）。 FJV消耗与脂肪能量百分比成负相关（r = -0.28; P = 0.001），与其他营养素呈正相关。甜味饮料的摄入与能量，蔗糖，果糖和维生素C的摄入呈正相关。结论：这种基于行为的食物编码系统证明了在8至10岁的非洲裔美国女孩中构建体的有效性，并且可以测量所需的食物类型。

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