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Assessing the impact of dietary restraint on the accuracy of self-report height and weight for determination of body weight status

Body Mass Index (BMI, kg/m) is commonly used to define body weight status in population groups. In questionnaire surveys self-report height and weight is often used to calculate BMI. However, the extent of accuracy of self-report height and weight is not clear. The aim of this study was to determine the accuracy of self-report height and weight in a group of adults (aged 18–65 yr). Following consent, a total of 201 participants (mean age 26 (SD 10.24) yr; 105 males, 92 females) were recruited to the study. Following completion of a short questionnaire which included collection of self-report (self-report) height and weight and assessed dietary restraint (using the Dutch Eating Behaviour Questionnaire (DEBQ) height (to the nearest 0.1 kg) and weight (to the nearest 0.01 cm) of participants was measured (actual). Accuracy of self-report measures was determined (i.e. self-report – actual). Measurements were considered accurate if weight was within 0.05 kg and height was within 0.05 m.