Hebert J R, Gupta P C, Bhonsle R B, Murti P R, Mehta H, Verghese F, Aghi M, Krishnaswamy K, Mehta F S
Department of Medicine, University of Massachusetts Medical School, Worcester 01655, USA.
Public Health Nutr. 1998 Jun;1(2):123-30. doi: 10.1079/phn19980019.
To develop and test a food frequency questionnaire (FFQ) for use in rural areas of Kerala, India.
Based on food use and market surveys of the study area, a quantitative 81-item interviewer-administered FFQ was developed. A validation study was conducted consisting of 24-h diet recalls (24HR) administered on 8 days randomly selected over an entire year and two administrations of the FFQ, one at the beginning of the 1-year period and the other at the end. FFQ and 24HR-derived nutrient scores were compared using correlation and regression analyses and by examining differences in the nutrient scores.
Rural villages in Ernakulum district, Kerala, South India.
In each of 30 households, the male head of household and female food preparer were enrolled.
Pearson (parametric) correlation coefficients (r(p)) averaged about 0.50 in comparing nutrient scores derived from the 24HR with those from the first FFQ and about 0.55 in comparing the second FFQ. On average, Spearman correlation coefficients (r(s)) were slightly lower than the r(p) in comparing the scores derived from the first FFQ, but virtually identical for the second FFQ. Regression analyses indicated better agreement in the comparison of the 24HR-derived scores with the first FFQ than the second FFQ. Difference scores, however, tended to be larger in comparing the first FFQ scores with the 24HR.
This FFQ produces results broadly comparable to those used in Europe and North America, indicating its suitability for comparing exposures within a study population in reference to health-related endpoints.
开发并测试一种适用于印度喀拉拉邦农村地区的食物频率问卷（FFQ）。
基于对研究区域的食物使用情况和市场调查，开发了一份由访谈员实施的包含81个条目的定量FFQ。开展了一项验证研究，包括在一整年中随机抽取8天进行24小时饮食回顾（24HR），以及两次FFQ调查，一次在1年周期开始时，另一次在结束时。使用相关性和回归分析以及检查营养素得分差异，对FFQ和24HR得出的营养素得分进行比较。
印度南部喀拉拉邦埃尔讷古勒姆区的农村村庄。
在30户家庭中，每户招募男性户主和女性食物制备者。
在比较24HR得出的营养素得分与首次FFQ得出的得分时，Pearson（参数）相关系数（r(p)）平均约为0.50，在比较第二次FFQ时约为0.55。平均而言，在比较首次FFQ得出的得分时，Spearman相关系数（r(s)）略低于r(p)，但在比较第二次FFQ时几乎相同。回归分析表明，24HR得出的得分与首次FFQ的比较比与第二次FFQ的比较一致性更好。然而，在比较首次FFQ得分与24HR得分时，差异得分往往更大。
该FFQ产生的结果与欧洲和北美的结果大致可比，表明其适用于在研究人群中比较与健康相关终点的暴露情况。
