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- Original Article Validity of interviewees responses in health interview survey
- Dae Kyu Oh, Han Joong Kim, Kyung Yong Lee
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Epidemiol Health 1984;6(1):70-77
DOI: https://doi.org/
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Abstract
The validity of interviewees' responses on the numbers of medical utilization, visits and medication days in a health interview survey were measured. Memory recalls within two weeks and four weeks were also measured. The influences of different types of interviewers and characteristics of respondents were also tested. The records of requested bills to the heatlth insurance corporation from clinics and hospitals were used as reference information against the validy measurement. The health interview survey which was used for this study was conducted as a part of a study on impact of health insurance on the medical care utilization in Kangwha county in June 1983. Followings are summary of the results. 1. As an individual, the agreement rates between two records within two weeks of memory on the numbers of spells, visits and medication days were 98.0%, 68.8% and 46.9% respectively. Within four weeks of memory, the agreement rates were 96.8% 68.4% and 42.1% respectively. 2. As a group, the interviewees’ responses on the numbers of visits and medication days were slightly under-reported to 0.95 within two weeks of memory and 0.20 within 4 weeks of memory. 3. The agreement rates of two different types of interviewers (medical and sociology students) showed no difference. 4. The agreement rates were highest when respondents were head of the household and those of housewife, grand parents, children and kinds were the next in order. 5. The higher the educational level of respondents the higher the agreement rates were seen. Among those respondents who had education of high school and above showed highest agreement rates and even showed over-reporting tendency. 6. There was no difference in agreement rates between male and female respondents. 7. The higher the level of age, the higher the agreement rates were observed.
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