The relative validity and repeatability of an FFQ for estimating intake of zinc and its absorption modifiers in young and older Saudi adults

Public Health Nutrition

Taha A Kumosani¹  Hadeil M Alsufiani¹  Dianne Ford¹  Fatmah Yamani¹  John C Mathers¹ 

关键词: Relative validity;    Repeatability;    FFQ;    Zinc intake;    Zinc-absorption modifiers;    Saudi Arabia;    Young and older adults;   

DOI  :  10.1017/S1368980014001517

学科分类：卫生学

来源: Cambridge University Press

【 摘 要 】

AbstractObjectiveTo assess the relative validity and repeatability of a sixty-four-item FFQ for estimating dietary intake of Zn and its absorption modifiers in Saudi adults. In addition, we used the FFQ to investigate the effect of age and gender on these intakes.DesignTo assess validity, all participants completed the FFQ (FFQ1) and a 3 d food record. After 1 month, the FFQ was administered for a second time (FFQ2) to assess repeatability.SettingJeddah, Saudi Arabia.SubjectsOne hundred males and females aged 20–30 years and 60–70 years participated.ResultsMean intakes of Zn and protein from FFQ1 were significantly higher than those from the food record while there were no detectable differences between tools for measurement of phytic acid intake. Estimated intakes of Zn, protein and phytate by both approaches were strongly correlated (P0·68, P

【 授权许可】

Unknown