Comparison of relative validity of food group intakes estimated by comprehensive and brief-type self-administered diet history questionnaires against 16 d dietary records in Japanese adults

Abstract

Objective: To compare the relative validity of food group intakes derived from a comprehensive self-administered diet history questionnaire (DHQ) and a brieftype DHQ (BDHQ) developed for the assessment of Japanese diets during the previous month using semi-weighed dietary records (DR) as a reference method. The value of human nutritional studies is largely dependent on the accuracy of the dietary information used. In particular, many epidemiological studies are evaluated by the accuracy of their assessment of an individual's habitual diet. Long-term dietary habits are often assessed using dietary questionnaires (1) ; however, given that food culture and dietary habits vary by country, these need to be developed specifically for each country (2) . In addition, because dietary questionnaires do not necessarily estimate true food intake, their validity needs to be evaluated. The most common way to do this is to assess actual intakes for a limited number of days using dietary records and a 24 h dietary recall (1)(2)(3) . Sasaki et al. (4) developed a comprehensive selfadministered diet history questionnaire (DHQ) that uses both food frequency methodology (consumption frequency and portion size) and diet history methodology (e.g. assessment of cooking methods and staple foods for each meal separately) to estimate the dietary intakes of 150 food and beverage items. This DHQ has been validated using the dietary record (4) , 24 h urine (5) , serum (6) and doubly labelled water (7) methods, and has been used

Feeding practices in early life and later intake of fruit and vegetables among Japanese toddlers: the Osaka Maternal and Child Health Study

“…This error is expected to have attenuated associations. In addition, we used a validated dietary assessment questionnaire for the mothers (21)(22)(23)(24)(25)(26)(27) , but the validity of the DHQ regarding fruit and vegetables has not been examined among pregnant women and the results should accordingly be interpreted with caution. Fourth, maternal body weight just before pregnancy was not available.…”

“…Diet during the preceding month was assessed using a validated, self-administered dietary history questionnaire (DHQ) (21)(22)(23)(24)(25)(26)(27) . Estimates of daily intake for 150 food and beverage items as well as for energy, nutrients and alcohol were calculated using an ad hoc computer algorithm for the DHQ, which was based on the Standard Tables of Food Composition in Japan (28) .…”

Green tea and coffee consumption is inversely associated with depressive symptoms in a Japanese working population

“…Consumptions of green tea and coffee were elicited by a closed-ended question, and the beverage consumption in terms of volume was estimated by assigning the following values (cups/week) to the frequency of consumption (24) A cup size of green tea or coffee was assumed as 150 ml for women and 171 ml (150 ml 3 1?14) for men (24) . Correlations between consumption of green tea and coffee according to the above-mentioned BDHQ and those from 16 d dietary records were high (Spearman's r 5 0?74 and 0?73 for green tea consumption in men and women, respectively; the corresponding data for coffee consumption were 0?85 in men and 0?87 in women) (24) . Referring to the Food Composition Table in Japan (25) , we estimated daily caffeine consumption from green tea and coffee consumption, using respectively 20 and 60 mg of caffeine per 100 ml of each beverage.…”

Impact of Interactions Between Self-Reported Psychological Stress and Habitual Exercise on the Dietary Intake of Japanese Men and Women: a Large-Scale Cross-Sectional Study

“…The subjects who answered yes were considered exercisers and those who answered no were non-exercisers. A scientifically validated food frequency questionnaire (Kobayashi et al, 2011;Kobayashi et al, 2012) was used. This questionnaire contains 58 food items and foods, which were used to calculate the intake of energy and 42 nutrients.…”