Mares-Perlman J A, Klein B E, Klein R, Ritter L L, Fisher M R, Freudenheim J L
Department of Ophthalmology, University of Wisconsin, Madison 53705-2397.
J Nutr. 1993 Mar;123(3):489-501. doi: 10.1093/jn/123.3.489.
We evaluated the reproducibility of a modified version of the National Cancer Institute diet history questionnaire and also studied comparability of nutrient estimates from this questionnaire to those from four 2-d food records. Subjects (n = 211) were from a population-based sample of middle-aged and older adults participating in the Beaver Dam Eye Study in south-central Wisconsin. Median age-specific correlation coefficients between the questionnaire, administered twice at a 3-mo interval, were 0.8 in men and 0.7 in women (range = 0.5 to 0.9). Questionnaire estimates of protein, cholesterol, thiamin, niacin, iron and zinc were consistently lower than food record estimates whereas estimates of fat were higher. Correlation coefficients between estimates from the questionnaire and records were generally > 0.5, indicating overall good agreement in ranking. However, the range in correlation coefficients was wide [ranging from 0.06 for iron (without supplements) in middle-aged women to 0.8 for alcohol in middle-aged men and women]. Questionnaire estimates similarly classified persons into the lowest two food record quintiles of intake 50 to 93% of the time depending on nutrient. These results suggest that the questionnaire produces nutrient estimates that rank individuals on the basis of intake of most nutrients similarly to estimates from multiple food records.
我们评估了美国国立癌症研究所饮食史问卷修改版的可重复性，并研究了该问卷的营养估计值与四份两日食物记录的营养估计值之间的可比性。研究对象（n = 211）来自威斯康星州中南部参加比弗迪姆眼研究的中老年人群体样本。间隔3个月进行两次问卷调查，特定年龄的中位数相关系数男性为0.8，女性为0.7（范围 = 0.5至0.9）。问卷对蛋白质、胆固醇、硫胺素、烟酸、铁和锌的估计值始终低于食物记录的估计值，而脂肪的估计值则更高。问卷估计值与记录估计值之间的相关系数一般> 0.5，表明在排名上总体一致性良好。然而，相关系数的范围较宽[从中年女性铁（不包括补充剂）的0.06到中年男性和女性酒精的0.8]。问卷估计值同样能将个体以50%至93%的概率根据营养素分类到食物记录摄入量最低的两个五分位数中。这些结果表明，该问卷得出的营养估计值能根据大多数营养素的摄入量对个体进行排名，与多份食物记录的估计值类似。
