Korean J Health Promot.
2013 Sep;13(3):107-115.
Development and Feasibility of a Web-based Program 'Diet Evaluation System (DES)' in Urban and Community Nutrition Survey in Korea
- Affiliations
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- 1Research Institute of Human Ecology, College of Human Ecology, Seoul National University, Seoul, Korea.
- 2Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea. hypaik@snu.ac.kr
- 3Department of Food Science and Nutrition, School of Human Ecology, Catholic University, Bucheon, Korea.
Abstract
- BACKGROUND
Repeated 24 hour recall has been considered as a preferred method for obtaining accurate dietary information while time and cost for coding and data processing have been a major barrier for their use in large studies. This burden can be resolved by automating the interview and data processing. However, there has been no report about a computerized interview system for dietary survey in a free-living population in Korea.
METHODS
This study attempts to test the feasibility of a newly-developed web-based dietary assessment program, Diet Evaluation System (DES) for subjects in a mixed region of urban and rural areas via wireless internet. We conducted total of 134 interviews, twice for each of 67 subjects of various age. As another aspect of feasibility, the group discussion among interviewers was done.
RESULTS
Success rate of total attempted interviews was about 70%. Major reasons for problem with DES were instability of wireless internet and consequent inefficient booting of laptops in some areas. It took 14 minute 56 seconds on average to complete an interview and data processing conducted automatically. Subjects' age and internet environment influenced the DES interview time. The group discussion revealed that one-stop system with DES is fast and convenient assuming good wireless internet environment.
CONCLUSIONS
Web-based dietary assessment was feasible in this community nutrition survey. To confirm the feasibility in large scale, studies with more comprehensive area and subjects are needed with various wireless condition.
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