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7 "Health Care Utilization"
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Original Article
Increase in Potential Low-value Magnetic Resonance Imaging Utilization Due to Out-of-pocket Payment Reduction Across Income Groups in Korea: An Experimental Vignette Study
Yukyung Shin, Ji-su Lee, Young Kyung Do
J Prev Med Public Health. 2022;55(4):389-397.   Published online July 11, 2022
DOI: https://doi.org/10.3961/jpmph.22.208
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  • 121 Download
  • 1 Web of Science
  • 2 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Objectives
This study examined the effect of out-of-pocket (OOP) payment reduction on the potential utilization of low-value magnetic resonance imaging (MRI) across income groups.
Methods
We conducted an experimental vignette survey using a proportional quota-based sample of individuals in Korea (n=1229). In two hypothetical vignettes, participants were asked whether they would be willing to use MRI if they had uncomplicated headache and non-specific low back pain, each before and after OOP payment reduction. To account for the possible role of physician inducement, half of the participants were initially presented with vignettes that included a physician recommendation for low-value care. The predicted probability, slope index of inequality (SII), and relative index of inequality (RII) were calculated using logistic regression.
Results
Before OOP payment reduction, the lowest income quintile was least likely to use low-value MRI regardless of physician inducement (36.7-49.6% for low back pain; 30.5-39.3% for headache). After OOP payment reduction, almost all individuals in each income quintile were willing to use low-value MRI (89.8-98.0% for low back pain; 78.1-90.3% for headache). Absolute and relative inequalities concerning potential low-value MRI utilization decreased after OOP payments were reduced, even without physician inducement (SII: from 8.15 to 5.37%, RII: from 1.20 to 1.06 for low back pain; SII: from 6.99 to 0.83%, RII: from 1.20 to 1.01 for headache).
Conclusions
OOP payment reduction for MRI has the potential to increase low-value care utilization among all income groups while decreasing inequality in low-value care utilization.
Summary
Korean summary
실험적 비네트 디자인을 활용하여 환자 본인부담금 감소가 잠재적 저가치 MRI 이용에 미치는 영향을 소득 수준별로 분석한 연구이다. 본인부담금 감소로 인해 잠재적 저가치 MRI 이용은 모든 소득 수준에서 증가하고 잠재적 저가치 MRI 이용의 소득 수준에 따른 차이는 감소하는 결과를 보였다.

Citations

Citations to this article as recorded by  
  • Clinical Significance of Isolated Sphenoid Sinusitis Identified in Pediatric Patients Presenting with Headache
    Seung Beom Han, Jee Min Kim, Eu Gene Park, Ji Yoon Han, Jin Lee
    Medicina.2024; 60(10): 1625.     CrossRef
  • Socioeconomic inequality in organized and opportunistic screening for colorectal cancer: results from the Korean National Cancer Screening Survey, 2009-2021
    Xuan Quy Luu, Kyeongmin Lee, Jae Kwan Jun, Mina Suh, Kui Son Choi
    Epidemiology and Health.2023; 45: e2023086.     CrossRef
English Abstract
Educational Differences in Health Care Utilization in the Last Year of Life among South Korean Cancer Patients.
Soo Young Choo, Sang Yi Lee, Chul Woung Kim, Su Young Kim, Tae Ho Yoon, Hai Rim Shin, Ok Ryun Moon
J Prev Med Public Health. 2007;40(1):36-44.
DOI: https://doi.org/10.3961/jpmph.2007.40.1.36
  • 5,246 View
  • 43 Download
  • 10 Crossref
AbstractAbstract PDF
OBJECTIVES
There have been few studies examining the differences in health care utilization across social classes during the last year of life. Therefore, in this study we analyzed the quantitative and qualitative differences in health care utilization among cancer patients across educational classes in their last year of life, and derived from it implications for policy. METHODS: To evaluate health care utilization by cancer patients in the last year of life, Death certificate data from 2004 were merged with National Health Insurance data (n=60,088). In order to use educational level as a social class index, we selected the individuals aged 40 and over as study subjects (n=57,484). We analyzed the differences in the medical expenditures, admission days, and rates of admission experience across educational classes descriptively. Multiple regression analysis was conducted to evaluate the association between medical expenditures and independent variables such as sex, age, education class, site of death and type of cancer. RESULTS: The upper educational class spent much more on medical expenditures in the last one year of life, particularly during the last month of life, than the lower educational class did. The ratio of monthly medical expenditures per capita between the college class and no education class was 2.5 in the last 6-12 months of life, but the ratio was 1.6 in the last 1 month. Also, the lower the educational class, the higher the proportion of medical expenditures during the last one month of life, compared to total medical expenditures in the last one year of life. The college educational class had a much higher rate of admission experiences in tertiary hospitals within Seoul than the other education classes did. CONCLUSIONS: This study shows that the lower educational classes had qualitative and quantitative disadvantages in utilizing health care services for cancer in the last year of life.
Summary

Citations

Citations to this article as recorded by  
  • Cross-national differences in wealth inequality in health services and caregiving used near the end of life
    Jennifer A. Ailshire, Cristian A. Herrera, Eunyoung Choi, Margarita Osuna, Elina Suzuki
    eClinicalMedicine.2023; 58: 101911.     CrossRef
  • Socioeconomic differences in the perception of inequalities in healthcare utilization and health in South Korea
    Nayeon Kim, Hye-won Yun, Juwon Park, Fatima Nari, Hee Jin Wang, Jae Kwan Jun, Kui Son Choi, Mina Suh
    Preventive Medicine Reports.2023; 36: 102445.     CrossRef
  • Cross-National Differences in Wealth Inequality in Health Services and Caregiving Used Near the End of Life
    Jennifer A. Ailshire, Cristian A. Herrera, Eunyoung Choi, Margarita Osuna, Elina M. Suzuki
    SSRN Electronic Journal .2022;[Epub]     CrossRef
  • Socioeconomic position and use of healthcare in the last year of life: A systematic review and meta-analysis
    Joanna M. Davies, Katherine E. Sleeman, Javiera Leniz, Rebecca Wilson, Irene J. Higginson, Julia Verne, Matthew Maddocks, Fliss E. M. Murtagh, Holly Gwen Prigerson
    PLOS Medicine.2019; 16(4): e1002782.     CrossRef
  • Joint Symposium of Korean Cancer Association & UICC-ARO—Cross-boundary cancer studies: cancer and Universal Health Coverage (UHC) in Asia
    Eun-Cheol Park, Norie Kawahara, Shinjiro Nozaki, Hasbullah Thabrany, Shunya Yoshimi, Sohee Park, Duk Hyoung Lee, Hideyuki Akaza, Jae Kyung Roh
    Japanese Journal of Clinical Oncology.2017; 47(9): 889.     CrossRef
  • Medical Costs and Healthcare Utilization among Cancer Decedents in the Last Year of Life in 2009
    Inuk Hwang, Dong Wook Shin, Kyoung Hee Kang, Hyung Kook Yang, So Young Kim, Jong-Hyock Park
    Cancer Research and Treatment.2016; 48(1): 365.     CrossRef
  • Barriers to Cancer Care, Perceived Social Support, and Patient Navigation Services for Korean Breast Cancer Patients
    Jung-won Lim
    Social Work in Health Care.2015; 54(1): 47.     CrossRef
  • Equity in health care: current situation in South Korea
    Hong-Jun Cho
    Journal of the Korean Medical Association.2013; 56(3): 184.     CrossRef
  • Inequalities in Medical Care Utilization by South Korean Cancer Patients According to Income: A Retrospective Cohort Study
    Tae Ho Yoon, Sang-Yi Lee, Chul-Woung Kim, Su Young Kim, Baek-Geun Jeong, Hyeung-Keun Park
    International Journal of Health Services.2011; 41(1): 51.     CrossRef
  • Factors Influencing Utilization of Medical Care Among Osteoarthritis Patients in Korea: Using 2005 Korean National Health and Nutrition Survey Data
    Min Young Kim, Jong Ku Park, Sang Baek Koh, Chun-Bae Kim
    Journal of Preventive Medicine and Public Health.2010; 43(6): 513.     CrossRef
Original Articles
Self-Rating Perceived Health: The Influence on Health Care Utilization and Death Risk.
Sun Seog Kweon, Sang Yong Kim, Jeong Soo Im, Seok Joon Sohn, Jin Su Choi
Korean J Prev Med. 1999;32(3):355-360.
  • 2,207 View
  • 32 Download
AbstractAbstract PDF
OBJECTIVES
This 3-year longitudinal study was conducted to evaluate the influence of self-rating health perception on health care utilization and all cause-death risk. METHODS: The hypothesis was tested using a community-based samples, among which subjects 3,414 were interviewed in 1995. Self-rating health perception was assessed by single-item question. Three components of health care utilization amount(number of visits, number of medications, yearly health care expenses) per year were measured using medical insurance data during 3-year follow-up period among subjects in district health care insurance. There were 123 deaths from all causes among 3,085 subjects interviewed. RESULTS: The results showed that those who had poor health perception revealed more increases in the amount of health care utilization than good health perception group (p<0.05). After adjusting for age and sex, the poor health perception group had higher death risk over 3 years than good health perception group(hazard ratio=1.88). but, after adjusting health care utility, supplementary, was not significant. CONCLUSION: These results suggest that self-rating health percep-tion was associated with difference in health care utilization and all cause-death risk.
Summary
Health Care Utilization of Workers with Skin Disease in Inchon.
Yeon Soon Ahn, Jae Seok Song, Jong Uk Won, Jaehoon Roh
Korean J Prev Med. 1999;32(2):206-214.
  • 2,151 View
  • 19 Download
AbstractAbstract PDF
OBJECTIVES
This study was carried out to identify relation of health care utilization due to skin disease(ICD-10, L00-L99) and characteristics(sex, age, exposure status, type of industry, size of enterprise) of workers. METHODS: We made new database composed of 30,536 workers' health examination results in one specific health examination institute in Inchon and data of medical insurance utilization due to skin disease in 4 medical insurance associations for enterprise from January, 1995 to December, 1997. And we analyzed determinants of health care utilization due to skin disease of workers. RESULTS: Among 30,536 study subjects, 8,837(28.9%) workers and 4,181(13.7%) workers utilized medical insurance due to total skin disease(ICD-10, L00-L99) and contact dermatitis(ICD-10, L23-L25), respectively. Female workers(p<.001), workers exposed to organic solvents(p<.05), workers in manufacturing industries(p<.05, p<.01, respectively) and in large scale enterprises(p<.001) utilized more medical insurance due to total skin disease and contact dermatitis than male workers, workers not exposed to organic solvents, workers in non-manufacturing industries and small scale enterprises. With multiple logistic regression analysis, significant explanatory variables affecting workers' medical utilization due to total skin disease and dermatitis and eczema(ICD-10, L20-L30) in total workers were sex, age, specific chemicals and size of enterprises. And age, type of industries, organic solvents, specific chemicals and size of enterprises were significant explanatory variables related to medical insurance utilization due to dermatitis and eczema and contact dermatitis in male workers. CONCLUSION: From the above results, we found that workers exposed to organic solvents utilized more medical insurance due to skin disease than workers not exposed to. And, comparing to workers in large scale enterprises, workers in small scale enterprises may have unmet medical care utilization due to skin disease. Therefore we have to establish counterplan to manage occupational skin disease of high risk group(organic solvent exposure group) and to satisfy unmet medical care utilization of workers in small scale enterprises.
Summary
Determinanats of Health Care Utilization of the Physically Disabled.
Keon Yeop Kim, Young Sook Lee, Ki Soo Park, Jae Hee Son, Sin Kam, Byung Yeol Chun, Jae Yong Park, Min Hae Yeh
Korean J Prev Med. 1998;31(2):323-334.
  • 2,354 View
  • 25 Download
AbstractAbstract PDF
To investigate determinants of health care utilization of the physically, disabled over 20 years old in age living in Taegu city, a self-administered questionnaire survey was carried out for 337 disabled persons with chronic illness from April to July, 1997. Health care utilization rate was 81.9%(69.l% for hospital or clinic and 12.8% for pharmacy). Marital status, job, health concern, and response to illness showed statistically, significant relationship with health care utilization(p<0.05). By, path analysis, job, economic status, medical security type and response to illness had a significant direct effect on health care utilization(p<0.05), however, health concern and regular source of care had an indirect effect. The reasons of no health utilization were due to economic problem(31.l%), no symptom(18.0%), inconvenience to seek care or no accompanying persons to be helped(14.8%), unseriousness of the severity of the illness(14.8%), too busy to be treated or no free time(8.2%), hopeless prognosis to be treated(6.6%) in order. In conclusion, it is recommended that the program for expanding medicaid, improving socioeconomic status by getting a job and health education to increase the health Concern toward physically disabled should be implemented to increase health care utilization rate.
Summary
Impacts of Implementation of Patient Referral System in terms of Medical Expenditures and Medical Utilization.
Sang Hyuk Jung, Han Joong Kim
Korean J Prev Med. 1995;28(1):207-224.
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  • 28 Download
AbstractAbstract PDF
A new medical delivery system which regulated outpatient department(OPD) use from tertiary care hospitals was adopted in 1989. Under the new system, patients using tertiary care hospital OPD without referral slip from clinics or hospital could not get any insuranced benefit for the services received from the tertiary care hospital. This study was conducted to evaluate the Patient Referral System(PRS) with respect to health care expenditures and utilization. Two data sets were used in this study. One was monthly data set(from January 1986 to December 1992)from the Annual Report of Korea Medical Insurance Corporation(KMIC). The other was monthly joint data set composed of personal data of which 10% were selected randomly with their utilization data of KMIC from January 1988 to December 1992. The data were analyzed by time-series intervention model of SAS-ETS. The results of this study were as follows: 1. There was no statistically significant changes in per capita expenditures following PRS. 2. Utilization episodes per capita was increased statistically significantly after implementation of PRS. The use of clinics and hospitals increased significantly, whereas in tertiary care hospitals the use decreased significantly immediately after implementation of PRS and increased afterwards. 3. Follow-up visits per episode were decreased statistically significantly after implementation of PRS. The decrease of follow-up visits per episode were remarkable in clinics and hospitals, whereas in tertiary care hospitals it was increased significantly after implementation of PRS. 4. There was no statistically significant changes in prescribing days per episode following PRS. Futhermore, clinics and hospitals showed a statistically significant decrease in prescribing days per episode, whereas in tertiary care hospital it shower statistically significant increase after implementation of PRS. 5. Except high income class, the use of tertiary care hospitals showed statistically significant decrease after implementation of PRS. The degree of decrease in the use of tertiary card hospitals was inversely proportional to income. These results suggest that the PRS policy was not efficient because per capita expenditures did not decrease, and was not effective because utilization episodes per capita, follow-up visits per episode, and prescribing days per episode were not predictable and failed to show proper utilization. It was somewhat positive that utilization episodes per capita were decreased temporarily in tertiary card hospitals. And PRS policy was not appropriate because utilization episodes per capita was different among income groups. In conclusion, the PRS should be revised for initial goal attainment of cost containment and proper health care utilization.
Summary
A Study on the Insurance Contribution and Health Care Utilization of the Regional Medical Insurance Scheme.
Sang Il Lee, Hyun Rim Choi, Hyeong Sik Ahn, Yong Ik Kim, Young Soo Shin
Korean J Prev Med. 1989;22(4):578-590.
  • 2,247 View
  • 22 Download
AbstractAbstract PDF
This study was conducted to assess the equity in the regional insurance scheme through analysis of the computerized data from one regional insurance society and National Federation of Medical Insurance. We analysed the insurance contribution and benefit by the classes based on total and income-related contribution per household. The major findings of this study are as follows: 1. The average proportion of income-related contribution among the total was 39.2% and the upper classes show higher proportion of the income-related contribution. 2. The upper classes show higher health care utilization rate than the lower classes. It suggests that the lower classes have relatively large unmet medical needs. 3. The analysis through the Lorenz curve reveals that there exists transference of contributions from the upper to lower classes. But the cumulative percentage of insurance benefit is smaller than that of the number of the insured. It implies that regional medical insurance scheme in Korea has still some inequity in the context of social security principles.
Summary

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