Reproducibility and Relative Validity of Food Group Intake in a Food Frequency Questionnaire Developed for the Tehran Lipid and Glucose Study

Hosseini Esfahani, Firoozeh; Asghari, Golaleh; Mirmiran, Parvin; Azizi, Fereidoun

doi:10.2188/jea.je20090083

Reproducibility and Relative Validity of Food Group Intake in a Food Frequency Questionnaire Developed for the Tehran Lipid and Glucose Study

Objective To examine the validity and reproducibility of food groups in the semi-quantitative food frequency questionnaire (FFQ) developed for the Tehran Lipid and Glucose Study (TLGS). Methods To evaluate the reproducibility of food groups included in the FFQ, 132 subjects (61 men and 71 women) …