Calorie intake misreporting by diet record and food frequency questionnaire compared to doubly labeled water among postmenopausal women.

CALORIC content of foods; DIET; INGESTION; QUESTIONNAIRES; MENOPAUSE; CALORIC expenditure

Objective:We assessed the extent of energy misreporting from the use of a self-administered 7-day diet record (7-DDR) and a widely used food frequency questionnaire (FFQ) compared to total energy expenditure from doubly labeled water (DLW) in a group of postmenopausal women.Design:At baseline, 65 healthy postmenopausal women were instructed to fill out the National Cancer Institute's (NCI) FFQ and a 7-DDR. Average total energy expenditure using the DLW method was also performed at baseline.Results:On average, the women underestimated total energy intake compared to total energy expenditure assessed from DLW by 37% on the 7-DDR and 42% on the FFQ.Conclusions:These findings suggest that the interpretation of findings from the 7-DDR- and FFQ-based energy-disease association studies in postmenopausal women needs further evaluation.Sponsorship:This research was supported (in part) by the Intramural Program of the NIH (National Cancer Institute).European Journal of Clinical Nutrition (2006) 60, 561–565. doi:10.1038/sj.ejcn.1602359; published online 14 December 2005 [ABSTRACT FROM AUTHOR]