Validation of nutrient intake using an FFQ and repeated 24 h recalls in black and white subjects of the Adventist Health Study-2 (AHS-2)

Public Health Nutrition

Joan Sabaté¹  Jacqueline Chan¹  Gary E Fraser¹  Synnove F Knutsen¹  W Lawrence Beeson¹  Keiji Oda¹  Susanne Montgomery¹  R Patti Herring¹  Hannelore Bennett¹  Karen Jaceldo-Siegl¹  Terrence L Butler¹  Ella Haddad¹  Shalini S Sharma¹ 

关键词: Epidemiological methods;    Ethnic groups;    Questionnaires;    Validation studies;   

DOI  :  10.1017/S1368980009992072

学科分类：卫生学

来源: Cambridge University Press

【 摘 要 】

ObjectiveTo validate a 204-item quantitative FFQ for measurement of nutrient intake in the Adventist Health Study-2 (AHS-2).DesignCalibration study participants were randomly selected from the AHS-2 cohort by church, and then subject-within-church. Each participant provided two sets of three weighted 24 h dietary recalls and a 204-item FFQ. Race-specific correlation coefficients (r), corrected for attenuation from within-person variation in the recalls, were calculated for selected energy-adjusted macro- and micronutrients.SettingAdult members of the AHS-2 cohort geographically spread throughout the USA and Canada.SubjectsCalibration study participants included 461 blacks of American and Caribbean origin and 550 whites.ResultsCalibration study subjects represented the total cohort very well with respect to demographic variables. Approximately 33 % were males. Whites were older, had higher education and lower BMI compared with blacks. Across fifty-one variables, average deattenuated energy-adjusted validity correlations were 0·60 in whites and 0·52 in blacks. Individual components of protein had validity ranging from 0·40 to 0·68 in blacks and from 0·63 to 0·85 in whites; for total fat and fatty acids, validity ranged from 0·43 to 0·75 in blacks and from 0·46 to 0·77 in whites. Of the eighteen micronutrients assessed, sixteen in blacks and sixteen in whites had deattenuated energy-adjusted correlations ≥0·4, averaging 0·60 and 0·53 in whites and blacks, respectively.ConclusionsWith few exceptions validity coefficients were moderate to high for macronutrients, fatty acids, vitamins, minerals and fibre. We expect to successfully use these data for measurement error correction in analyses of diet and disease risk.

【 授权许可】

Unknown