Comparison of a web-based food record tool and a food-frequency questionnaire and objective validation using the doubly labelled water technique in a Swedish middle-aged population

• DOI: 10.1017/jns.2016.29
• Publication Date: 2016-10-03T02:38:07Z
• Authors: Sanna Nybacka; Heléne Bertéus Fo...; Elisabet Wirfält; Ingrid Larsson; Ulrika Ericson; Eva Warensjö Lemming; Göran Bergström; Bo Hedblad; Anna Winkvist; Anna Karin Lindroos
• Keywords: Doubly labeled water; Total energy expenditure; Energy requirement; Food frequency questionnaire

Abstract Two web-based dietary assessment tools have been developed for use in large-scale studies: the Riksmaten method (4-d food record) and MiniMeal-Q (food-frequency method). The aim of present study was to examine ability these methods capture energy intake against objectively measured total expenditure (TEE) with doubly labelled water technique (TEE DLW ), compare reported macronutrient intake. This conducted within pilot Swedish CArdioPulmonary bioImage Study (SCAPIS), which included 1111 randomly selected men women aged 50–64 years from Gothenburg general population. Of these, 200 were enrolled SCAPIS diet substudy. TEE a subsample ( n 40). Compared , both underestimated intake: −2·5 sd 2·9) MJ method; −2·3 3·6) MiniMeal-Q. Mean reporting accuracy 80 82 %, respectively. correlation between r 0·4 P < 0·05) 0·28 (non-significant) Women similar average macronutrients whereas higher intakes method. Energy-adjusted correlations ranged 0·14 (polyunsaturated fat) 0·77 (alcohol). Bland–Altman plots showed acceptable agreement energy-adjusted protein carbohydrate intake, fat poorer. According data, displayed precision on reporting. However, less successful ranking individuals than development achieve limited under-reporting is major challenge future research.