Gnardellis C, Trichopoulou A, Katsouyanni K, Polychronopoulos E, Rimm E B, Trichopoulos D
Department of Nutrition and Biochemistry, Athens School of Public Health, Greece.
Epidemiology. 1995 Jan;6(1):74-7. doi: 10.1097/00001648-199501000-00015.
We evaluated the reproducibility and validity of a 190-item semiquantitative food frequency questionnaire (FFQ) to be used in a large prospective study in the Athens area of Greece. Eighty persons, 42 men and 38 women, ages 25-67 years, completed a self-administered FFQ, followed by monthly 24-hour diet recalls and then a second FFQ 1 year after the first. Correlation coefficients measuring the reproducibility and validity of the FFQ indicate that the questionnaire is reproducible and provides a reasonably reliable measure of intake for many nutrients over a period of 1 year.
我们评估了一份包含190个条目的半定量食物频率问卷（FFQ）在希腊雅典地区一项大型前瞻性研究中的可重复性和有效性。80人（42名男性和38名女性，年龄在25至67岁之间）完成了一份自行填写的FFQ，随后是每月一次的24小时饮食回顾，然后在第一次FFQ之后1年进行第二次FFQ。衡量FFQ可重复性和有效性的相关系数表明，该问卷具有可重复性，并且在1年时间内能够为多种营养素的摄入量提供较为可靠的测量。
