title: Validity of self-reported healthcare utilization data in the Community Health Survey in Korea.
abstract: To evaluate the sensitivity and specificity of Community Health Survey (CHS), we analyzed data from 11,217 participants aged ≥ 19 yr, in 13 cities and counties in 2008. Three healthcare utilization indices (admission, outpatient visits, dental visits) as comparative variables and the insurance benefit claim data of the Health Insurance Review & Assessment Service as the gold-standard were used. The sensitivities of admission, outpatient visits, and dental visits in CHS were 54.8%, 52.1%, and 61.0%, respectively. The specificities were 96.4%, 85.6%, and 82.7%, respectively. This is the first study to evaluate the validity of nationwide health statistics resulting from questionnaire surveys and shows that CHS needs a lot of efforts to reflect the true health status, health behavior, and healthcare utilization of the population.
authors: Department of Preventive Medicine, School of Medicine, Konkuk University, Seoul, Korea.
authors: Hwayoung
authors: H
authors: Rim
authors: Hyeongsu
authors: H
authors: Kim
authors: Kunsei
authors: K
authors: Lee
authors: Sounghoon
authors: S
authors: Chang
authors: Melbourne F
authors: MF
authors: Hovell
authors: Young-Taek
authors: YT
authors: Kim
authors: Yuna
authors: Y
authors: Kim
authors: Gilwon
authors: G
authors: Kang
authors: Yangju
authors: Y
authors: Tak
authors: Jeehye
authors: J
authors: Im
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003151:Community Health Centers / Q000706:statistics & numerical data*; D005260:Female; D019538:Health Care Surveys; D006801:Humans; D007348:Insurance, Health; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D056910:Republic of Korea; D057566:Self Report; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires