ArticleHealth and quality of life outcomes2026
Psychometric evaluation of the Korean version of the Child Oral Health Impact Profile Short Form (COHIP-SF 19): a cross-sectional study.
Article in Health and quality of life outcomes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Impact of a Community-Based Preventive Oral Health Program on Oral Health-Related Quality of Life in School-Aged Children.International journal of paediatric dentistry · 2026Observational
- Psychometric evaluation of the Korean version of the Child Oral Health Impact Profile administered online among schoolchildren: a cross-sectional study.BMC oral health · 2026Article
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Abstract
backgroundThe Child Oral Health Impact Profile Short Form 19 (COHIP-SF 19) is widely used to assess oral health-related quality of life (OHRQoL). However, its psychometric properties have not been evaluated in Korea. This study aimed to examine the factor structure of the Korean COHIP-SF 19 and to assess its reliability and validity in schoolchildren.
methodsData were obtained from 980 fourth-grade elementary school students (aged 10 years) participating in a 2023 national oral health program. Children completed the COHIP-SF 19 online, and clinical examinations recorded caries, malocclusion, gingivitis, and oral hygiene status. Exploratory and confirmatory factor analyses were performed. Reliability was assessed using Cronbach's alpha, corrected item-total correlations, and test-retest intraclass correlation coefficients (ICC). Convergent and discriminant validity were evaluated using self-rated oral health, perceived treatment need, and clinical findings.
resultsExploratory factor analysis supported a four-factor solution with separation of the self-image subscale. Confirmatory factor analysis showed better fit for the modified model than the original structure. The total score demonstrated excellent test-retest reliability (ICC = 0.905). Cronbach's alpha for the 19 items was 0.729, with higher values in the modified model. Convergent validity was confirmed by correlations with self-rated oral health and treatment need. Discriminant validity was supported: children with caries or malocclusion had lower scores, whereas gingivitis and oral hygiene showed no associations. Gender differences appeared only in the modified model, with girls reporting lower functional well-being and social well-being scores.
conclusionsThe Korean COHIP-SF 19 demonstrated satisfactory psychometric properties in 10-year-old schoolchildren. The modified model showed improved structural validity, higher internal consistency, and better subgroup discrimination, including by gender. These findings support its use in clinical and epidemiological research.
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