Sareh Eghtesad, Sahar Masoudi, Maryam Sharafkhah, Bahram Rashidkhani, Ali Esmaeili-Nadimi, Farid Najafi, Elnaz Faramarzi, Reza Homayounfar, Pedram Ebrahimnejad, Alireza Ansari-Moghaddam, Mohammadreza Mirjalili, Hossein Poustchi, Walter C Willett, Reza Malekzadeh, Azita Hekmatdoost
BACKGROUND: Dietary patterns, encompassing an overall view of individuals' dietary intake, are suggested as a suitable means of assessing nutrition's role in chronic disease development. The aim of this study was to evaluate the validity and reproducibility of a food frequency questionnaire (FFQ) designed for use in the Prospective Epidemiological Research Studies in IrAN (PERSIAN), by comparing major dietary patterns assessed by the FFQ with a reference method. METHODS: Study participants included men and women who enrolled in the PERSIAN Cohort Study at seven of the eighteen centers...
March 13, 2024: Nutrition Journal