Tucker K L, Bianchi L A, Maras J, Bermudez O I
Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111, USA.
Am J Epidemiol. 1998 Sep 1;148(5):507-18. doi: 10.1093/oxfordjournals.aje.a009676.
To study issues of diet and health among Hispanic adults living in the northeastern United States, the authors adapted a version of the National Cancer Institute (NCI)/Block food frequency questionnaire. Foods that contributed to nutrient intake of Puerto Rican adults in the Hispanic Health and Nutrition Examination Survey (HHANES) were ranked to identify items to be added to the food list. Portion sizes were compared across HHANES and the Second National Health and Nutrition Examination Survey (NHANES II) to assess the adequacy of the assumed values. Within line items, frequencies of consumption of individual foods were ranked and these data were used to adjust the weighting factors within the database. To test the revised form, 24-hour recalls were collected from 90 elderly Hispanics and 35 elderly non-Hispanic whites. These data were coded into the original and revised food frequency forms and nutrient intake results were compared with recall results by paired t-test, and by Pearson and intraclass correlations. Added foods include plantains, avocado, mango, cassava, empanadas, and custard. Portion sizes differed significantly between HHANES and NHANES II, and were left open-ended. Estimated mean nutrient intakes and correlations with recall data were lower with the original versus the revised form. The authors conclude that the use in minority populations of food frequency questionnaires developed for the general population is likely to result in biased estimates of intake unless modifications are made in the questionnaires.
为研究居住在美国东北部的西班牙裔成年人的饮食与健康问题，作者改编了美国国立癌症研究所（NCI）/布洛克食物频率问卷的一个版本。对西班牙裔健康与营养检查调查（HHANES）中有助于波多黎各成年人营养摄入的食物进行排名，以确定要添加到食物清单中的项目。比较了HHANES和第二次全国健康与营养检查调查（NHANES II）中的食物分量大小，以评估假设值的充分性。在各行项目中，对个体食物的消费频率进行排名，并使用这些数据调整数据库中的加权因子。为测试修订后的问卷，收集了90名西班牙裔老年人和35名非西班牙裔白人老年人的24小时饮食回忆。这些数据被编码到原始和修订后的食物频率问卷中，并通过配对t检验、皮尔逊相关和组内相关，将营养摄入结果与回忆结果进行比较。新增的食物包括大蕉、鳄梨、芒果、木薯、肉馅饼和蛋奶冻。HHANES和NHANES II之间的食物分量大小存在显著差异，且未设定具体数值。与修订后的问卷相比，原始问卷的估计平均营养摄入量以及与回忆数据的相关性较低。作者得出结论，除非对问卷进行修改，否则将为一般人群开发的食物频率问卷用于少数族裔人群可能会导致摄入量估计存在偏差。
