Journal of Preventive Medicine and Public Health

Original Articles

Estimation of Utility Weights for Prostate-related Health States in Korea: Seon-Ha Kim, Minsu Ock, Min-Woo Jo, Sungchan Park; J Prev Med Public Health. 2022;55(3):243-252. Published online May 4, 2022; DOI: https://doi.org/10.3961/jpmph.21.426

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Abstract Summary PDF Supplementary Material: Objectives
Very limited previous research has investigated the utility weights of prostate-related diseases in the general population in Korea. The purpose of this study was to calculate the utility of prostate-related health states in the Korean general public using the standard gamble (SG) method.
Methods
Seven health states for hypothetical prostate cancers, 1 for benign prostate hyperplasia, and 1 for erectile dysfunction were developed based on patient education material and previous publications. In total, 460 responses from the Korean general population were used to analyze the utility of prostate-related health states. Computer-assisted personal interviews were conducted, and utility values were measured using a visual analogue scale (VAS) and SG. Mean utility values were calculated for each prostate-related health state.
Results
The mean utility values of prostate cancer derived from SG ranged from 0.281 (metastatic castration-refractory prostate cancer) to 0.779 (localized prostate cancer requiring prostatectomy). The utility value of benign prostate hyperplasia was 0.871, and that of erectile dysfunction was 0.812. The utility values obtained using the SG method in all conditions were higher than the values obtained by VAS. There were no significant demographic variables affecting utility values in multivariate analysis.
Conclusions
Our findings might be useful for economic evaluation and utility calculation of screening and interventions for prostate-related conditions in the general population.; Summary

Korean summary
이 연구는 일반인구집단을 대상으로 7개의 전립선 암 상태와 전립선 비대증, 발기부전상태의 효용값을 표준기회선택법을 이용하여 산출하였다. 전립선암 상태에 따라 평균 효용값은 0.281에서 0.779범위였다. 연구 결과는 전립선 관련 상태의 중재의 효용 계산이나 경제성 평가에 활용할 수 있을 것이다.

Exploratory Study of Dimensions of Health-related Quality of Life in the General Population of South Korea: Seon-Ha Kim, Min-Woo Jo, Minsu Ock, Sang-il Lee; J Prev Med Public Health. 2017;50(6):361-368. Published online November 2, 2017; DOI: https://doi.org/10.3961/jpmph.16.076

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11 Crossref

Objectives
This study aimed to explore dimensions in addition to the 5 dimensions of the 5-level EQ-5D version (EQ-5D-5L) that could satisfactorily explain variation in health-related quality of life (HRQoL) in the general population of South Korea.
Methods
Domains related to HRQoL were searched through a review of existing HRQoL instruments. Among the 28 potential dimensions, the 5 dimensions of the EQ-5D-5L and 7 additional dimensions (vision, hearing, communication, cognitive function, social relationships, vitality, and sleep) were included. A representative sample of 600 subjects was selected for the survey, which was administered through face-to-face interviews. Subjects were asked to report problems in 12 health dimensions at 5 levels, as well as their self-rated health status using the EuroQol visual analogue scale (EQ-VAS) and a 5-point Likert scale. Among subjects who reported no problems for any of the parameters in the EQ-5D-5L, we analyzed the frequencies of problems in the additional dimensions. A linear regression model with the EQ-VAS as the dependent variable was performed to identify additional significant dimensions.
Results
Among respondents who reported full health on the EQ-5D-5L (n=365), 32% reported a problem for at least 1 additional dimension, and 14% reported worse than moderate self-rated health. Regression analysis revealed a R2 of 0.228 for the original EQ-5D-5L dimensions, 0.200 for the new dimensions, and 0.263 for the 12 dimensions together. Among the added dimensions, vitality and sleep were significantly associated with EQ-VAS scores.
Conclusions
This study identified significant dimensions for assessing self-rated health among members of the general public, in addition to the 5 dimensions of the EQ-5D-5L. These dimensions could be considered for inclusion in a new preference-based instrument or for developing a country-specific HRQoL instrument.

Summary

Citations

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A Review of the Types and Characteristics of Healthy Life Expectancy and Methodological Issues
Young-Eun Kim, Yoon-Sun Jung, Minsu Ock, Seok-Jun Yoon
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Journal of Korean Medical Science.2021;[Epub] CrossRef
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Development and Validation of a Novel Generic Health-related Quality of Life Instrument With 20 Items (HINT-20): Min-Woo Jo, Hyeon-Jeong Lee, Soo Young Kim, Seon-Ha Kim, Hyejung Chang, Jeonghoon Ahn, Minsu Ock; J Prev Med Public Health. 2017;50(1):38-59. Published online January 10, 2017; DOI: https://doi.org/10.3961/jpmph.16.081

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Abstract PDF Supplementary Material

Objectives
Few attempts have been made to develop a generic health-related quality of life (HRQoL) instrument and to examine its validity and reliability in Korea. We aimed to do this in our present study.
Methods
After a literature review of existing generic HRQoL instruments, a focus group discussion, in-depth interviews, and expert consultations, we selected 30 tentative items for a new HRQoL measure. These items were evaluated by assessing their ceiling effects, difficulty, and redundancy in the first survey. To validate the HRQoL instrument that was developed, known-groups validity and convergent/discriminant validity were evaluated and its test-retest reliability was examined in the second survey.
Results
Of the 30 items originally assessed for the HRQoL instrument, four were excluded due to high ceiling effects and six were removed due to redundancy. We ultimately developed a HRQoL instrument with a reduced number of 20 items, known as the Health-related Quality of Life Instrument with 20 items (HINT-20), incorporating physical, mental, social, and positive health dimensions. The results of the HINT-20 for known-groups validity were poorer in women, the elderly, and those with a low income. For convergent/discriminant validity, the correlation coefficients of items (except vitality) in the physical health dimension with the physical component summary of the Short Form 36 version 2 (SF-36v2) were generally higher than the correlations of those items with the mental component summary of the SF-36v2, and vice versa. Regarding test-retest reliability, the intraclass correlation coefficient of the total HINT-20 score was 0.813 (p<0.001).
Conclusions
A novel generic HRQoL instrument, the HINT-20, was developed for the Korean general population and showed acceptable validity and reliability.

Summary

Citations

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A Review of the Types and Characteristics of Healthy Life Expectancy and Methodological Issues
Young-Eun Kim, Yoon-Sun Jung, Minsu Ock, Seok-Jun Yoon
Journal of Preventive Medicine and Public Health.2022; 55(1): 1. CrossRef
Health-Related Quality of Life (HRQOL) Instruments and Mobility: A Systematic Review
Natalia Hernández-Segura, Alba Marcos-Delgado, Arrate Pinto-Carral, Tania Fernández-Villa, Antonio J. Molina
International Journal of Environmental Research and Public Health.2022; 19(24): 16493. CrossRef
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Kaley Butten, Peter A. Newcombe, Anne B. Chang, Jeanie K. Sheffield, Kerry-Ann F. O’Grady, Newell W. Johnson, Neil King, Maree Toombs
Applied Research in Quality of Life.2021; 16(4): 1653. CrossRef
Meaning and Status of Health-related Quality of Life Recognized by Medical Professionals: a Qualitative Study
Jeehee Pyo, Minsu Ock, Bohyun Park, Nam-eun Kim, Eun Jeong Choi, Hyesook Park, Hyeong Sik Ahn
Journal of Korean Medical Science.2021;[Epub] CrossRef
Validity and reliability of the Health-Related Quality of Life Instrument with 8 Items (HINT-8) in Korean breast cancer patients
Juyoung Kim, Min-Woo Jo, Hyeon-Jeong Lee, Sei-Hyun Ahn, Byung Ho Son, Jong Won Lee, Sae Byul Lee
Osong Public Health and Research Perspectives.2021; 12(4): 254. CrossRef
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PLOS ONE.2018; 13(6): e0199881. CrossRef

Assessing Reliability of Medical Record Reviews for the Detection of Hospital Adverse Events: Minsu Ock, Sang-il Lee, Min-Woo Jo, Jin Yong Lee, Seon-Ha Kim; J Prev Med Public Health. 2015;48(5):239-248. Published online September 11, 2015; DOI: https://doi.org/10.3961/jpmph.14.049

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112 Download
12 Crossref

Abstract PDF Supplementary Material

Objectives
The purpose of this study was to assess the inter-rater reliability and intra-rater reliability of medical record review for the detection of hospital adverse events.
Methods
We conducted two stages retrospective medical records review of a random sample of 96 patients from one acute-care general hospital. The first stage was an explicit patient record review by two nurses to detect the presence of 41 screening criteria (SC). The second stage was an implicit structured review by two physicians to identify the occurrence of adverse events from the positive cases on the SC. The inter-rater reliability of two nurses and that of two physicians were assessed. The intra-rater reliability was also evaluated by using test-retest method at approximately two weeks later.
Results
In 84.2% of the patient medical records, the nurses agreed as to the necessity for the second stage review (kappa, 0.68; 95% confidence interval [CI], 0.54 to 0.83). In 93.0% of the patient medical records screened by nurses, the physicians agreed about the absence or presence of adverse events (kappa, 0.71; 95% CI, 0.44 to 0.97). When assessing intra-rater reliability, the kappa indices of two nurses were 0.54 (95% CI, 0.31 to 0.77) and 0.67 (95% CI, 0.47 to 0.87), whereas those of two physicians were 0.87 (95% CI, 0.62 to 1.00) and 0.37 (95% CI, -0.16 to 0.89).
Conclusions
In this study, the medical record review for detecting adverse events showed intermediate to good level of inter-rater and intra-rater reliability. Well organized training program for reviewers and clearly defining SC are required to get more reliable results in the hospital adverse event study.

Summary

Citations

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Jee-Hee Pyo, Eun-Young Choi, Hae-Mi Oh, Won Lee, Ju-Young Kim, Min-Su Ock, So-Yoon Kim, Sang-Il Lee
Quality Improvement in Health Care.2020; 26(1): 23. CrossRef
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Sukyeong Kim, Ho Gyun Shin, A E Jeong Jo, Ari Min, Minsu Ock, Jee-In Hwang, Youngjin Jeong, Moon Sung Park, Jong Bouk Lee, Tae I K Chang, Eunhyang Song, Heungseon Kim, Sang-Il Lee
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