Comparison of energy intakes estimated by weighed dietary record and diet history questionnaire with total energy expenditure measured by accelerometer in young Japanese women

In Western countries underestimation of energy intake (El) is considered a serious problem in dietary surveys, but information on the accuracy of EI among Japanese people is sparse. We compared estimated EI with measured total energy expenditure (TEE) in 21 Japanese women aged 20-22 y. Dietary intake was estimated by 7-d weighed dietary records (7dWR) and a self-administered diet history questionnaire (DHQ). TEE was measured for 25+-3 d (mean+-standard deviation, range: 16-27 d) by a uniaxial accelerometer. Both EI by 7dWR (1,498+-305 kcal/d) and EI by DHQ (1,599+-331 kcal/d) were significantly lower than TEE (1,865+-179kcal/d) (p