We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Can a web-based food record accurately assess energy intake in overweight and obese women? A pilot study.
- Authors
Hutchesson, M. J.; Truby, H.; Callister, R.; Morgan, P. J.; Davies, P. S. W.; Collins, C. E.
- Abstract
Background Innovative dietary intake measurement tools, such as web-based food records, are becoming increasingly available for self-monitoring. However, the accuracy of this method has not been well studied. This pilot study aimed to evaluate the accuracy of energy intake ( EI) estimated by a web-based food record, by comparison with total energy expenditure ( TEE) measured by doubly-labelled water ( DLW) in overweight and obese women. Methods Total energy expenditure ( TEE) was assessed in weight stable (±1 kg) women ( n = 9), with a mean ( SD) age of 34.5 (11.3) years and body mass index of 29.2 (1.4) kg m-2 over 10 days using the DLW technique. All food and beverages were self-reported for 9-days using a web-based food record and mean daily EI calculated. Food record accuracy was assessed by calculating the absolute ( EI − TEE) and percentage ( EI/ TEE × 100) differences between EI and TEE. Women were identified as under-reporters of EI based on the 95% confidence limits of the expected EI : TEE of 1. Results The mean ( SD) self-reported EI was 8351 (1225) kJ day−1 [1996 (293) kcal day−1] and TEE was 10 648 (1774) kJ day−1 [2545 (424) kcal day−1]. The mean (SD) absolute difference in self-reported EI and TEE was −2301 (1535) kJ day−1 [−550 (367) kcal day−1], representing a mean reporting accuracy of 79.6% (14.1%), with four participants under-reporting EI. Conclusions This pilot study highlights the opportunity for the use of the Internet as a novel medium for recording and assessing dietary intake. Although further research is needed in more diverse population groups, the accuracy of web-based food records for assessing EI appears to be consistent with other published dietary intake methods.
- Subjects
AUSTRALIA; NUTRITIONAL assessment; ANTHROPOMETRY; CONFIDENCE intervals; ENERGY metabolism; INGESTION; MATHEMATICS; RESEARCH methodology; OBESITY; RESEARCH funding; SELF-evaluation; URINALYSIS; WOMEN'S health; WORLD Wide Web; PILOT projects; BODY mass index; RESEARCH methodology evaluation; FOOD diaries; DATA analysis software; DESCRIPTIVE statistics
- Publication
Journal of Human Nutrition & Dietetics, 2013, Vol 26, p140
- ISSN
0952-3871
- Publication type
Article
- DOI
10.1111/jhn.12094