Martin-Biggers J, Koenings M, Quick V, Abbot J M, Byrd-Bredbenner C
Department of Nutritional Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.
Department of Health Sciences, James Madison University, Harrisonburg, VA, USA.
Eur J Clin Nutr. 2015 Sep;69(9):1028-34. doi: 10.1038/ejcn.2015.30. Epub 2015 Mar 25.
BACKGROUND/OBJECTIVE: The growing interest in environmental influences on obesity risk has spawned the development of tools for appraising home food availability. These tools reveal good reliability but tend to be limited in scope and burdensome to use. This cross-sectional study investigated the feasibility of using food categories and scoring algorithms from valid food frequency questionnaires for individuals (that is, Block Dietary Fat and Fruit-Vegetable-Fiber Screeners) to estimate nutrient availability in household food supplies.
SUBJECTS/METHODS: Screeners were compared with household food inventories from 100 two-parent families with ⩾1 children ⩽12 years of age. Inventoried foods were coded to match Screener food groups, and amounts available were converted to total adult daily equivalent servings to express the greatest possible frequency at which each food group could be eaten/day/household. Scoring algorithms were converted to express all scores on a per-day basis. For the most conservative assessment, the highest point was used for day ranges for the Fruit-Vegetable-Fiber Screener and the lowest range point was used for the Fat Screener.
Spearman's rank-order correlations (r⩾0.76) showed that the Fruit-Vegetable-Fiber Screener ranked households well for fruit/vegetable servings, vitamin C and dietary fiber. The Fat Screener and household inventory were positively correlated (r⩾0.58) for total fat, saturated fat and cholesterol. Concordance of household inventories and the Fruit-Vegetable-Fiber Screener, as determined by kappa with quadratic weighting, were strong and significant. Fat Screener concordance was moderate.
Results indicate that it is feasible to use the efficient, valid Block Dietary Screeners for individuals to appraise household food supplies.
背景/目的：人们对环境因素对肥胖风险影响的关注度日益提高，这促使了家庭食物可及性评估工具的发展。这些工具具有良好的可靠性，但范围往往有限且使用起来较为繁琐。这项横断面研究调查了使用针对个体的有效食物频率问卷（即“膳食脂肪筛查问卷”和“果蔬纤维筛查问卷”）中的食物类别和评分算法来估算家庭食物供应中营养素可及性的可行性。
对象/方法：将筛查问卷与来自100个有1名及以上12岁及以下子女的双亲家庭的家庭食物库存进行比较。对库存食物进行编码，使其与筛查问卷的食物组相匹配，并将可得量换算为成人每日等效份数，以表示每个食物组每天在每户家庭中可能的最高食用频率。评分算法也进行了转换，以按每天计算所有分数。为了进行最保守的评估，“果蔬纤维筛查问卷”使用最高分数来确定每日范围，“脂肪筛查问卷”则使用最低分数范围。
斯皮尔曼等级相关系数（r⩾0.76）表明，“果蔬纤维筛查问卷”在家庭水果/蔬菜份数、维生素C和膳食纤维方面对家庭的排名较好。“脂肪筛查问卷”与家庭食物库存中总脂肪、饱和脂肪和胆固醇呈正相关（r⩾0.58）。通过二次加权kappa检验确定，家庭食物库存与“果蔬纤维筛查问卷”的一致性很强且具有统计学意义。“脂肪筛查问卷”的一致性为中等。
结果表明，使用高效、有效的个体膳食筛查问卷来评估家庭食物供应是可行的。
