1.Characteristics Related to Elderly Personsʼ Willingness to Live in a Nursing Home with Mobility Problems
Dahye HONG ; Sohee PARK ; Heejin KIMM ; Leeseul KWON ; Woojin CHUNG
Health Policy and Management 2023;33(2):141-156
Background:
As the population rapidly ages, older adults are increasingly likely to experience mobility problems. This study aims to explore the characteristics related to an elderly person’s willingness to live in a nursing home if they have mobility problems Methods: This study analyzed data from 9,917 older adults (5,976 young-old and 3,941 old-old) obtained from the 2020 National Survey of Older Koreans. The dependent variable was the intended place of residence for older adults with mobility problems.Independent variables included various characteristics: (1) sociodemographic and social support, (2) health and functional status, and (3) residential environment. Rao-Scott chi-square tests and survey logistic regression analyses were performed for the young-old and old-old, respectively.
Results:
The intention to live in a nursing home was significantly different between the young-old (30.4%) and the old-old (34.7%) (p=0.009). According to fully adjusted multivariable analyses, for the young-old, the odds ratio of intending to live in a nursing home was significantly higher in social security benefit recipients (1.45; 95% confidence interval [CI], 1.06–1.97) compared to other individuals. The odds ratio was higher in unmarried (divorced, separated, widowed, or never-married) individuals for both young-old (1.41; 95% CI, 1.22–1.63) and old-old (1.34; 95% CI, 1.09–1.65) age groups, compared to their respective married counterparts.
Conclusion
The results of this study suggest that in an aging society, health and social policies should be designed considering the different characteristics of the elderly to improve their health, function, and quality of life.
2.Exploring Regional Disparities in Unmet Healthcare Needs and Their Causes in South Korea: A Policy-Oriented Study
Health Policy and Management 2023;33(3):273-294
Background:
Most developed countries are working to improve their universal health coverage systems. This study investigates regional disparities in unmet healthcare needs and their causes in South Korea. Additionally, it compares the unmet healthcare needs rate in South Korea with that of 33 European countries.
Methods:
The analysis incorporates information from 13,359 adults aged 19 or older, using data from the Korea Health Panel. The dependent variables encompass the experience of unmet healthcare needs and the three causes of occurrence: “burden of medical expenses,” “time constraints,” and “lack of care.” The primary variable of interest is the region of residence, while control variables encompass 14 socio-demographic, health, and functional characteristics. Multivariable binary logistic regression analysis, accounting for the sampling design, is conducted.
Results:
The rate of unmet healthcare needs in Korea is 11.7% (95% confidence interval [CI], 11.0%–13.3%), which is approximately 30 times higher than that of Austria (0.4%). The causes of unmet healthcare needs, ranked in descending order, are “lack of care,” “time constraints,” and “burden of medical expenses.” Predictive probabilities for experiencing unmet healthcare needs and each cause differ significantly between regions. For instance, the probability of experiencing unmet healthcare needs due to “lack of care” is approximately 10 times higher in Gangwon-do (13.5%; 95% CI, 13.0%–14.1%) than in Busan (1.3%; 95% CI, 1.3%–1.4%). The probability due to “burden of medical expenses” is approximately 14 times higher in Seoul (4.1%; 95% CI, 3.6%–4.6%) compared to Jeollanam-do (0.3%; 95% CI, 0.2%–0.4%).
Conclusion
Amid rapid sociodemographic transitions, South Korea must make significant efforts to alleviate unmet healthcare needs and the associated regional disparities. To effectively achieve this, it is recommended that South Korea involves the National Assembly in healthcare policy-making, while maintaining a centralized financing model and delegating healthcare planning and implementation to regional authorities for their local residents—similar to the approaches of the United Kingdom and France.
3.Quantitative Susceptibility Mapping of Oxygen Metabolism: A Feasibility Study Utilizing a Large-Scale Clinical Dataset
Woojin CHUNG ; Jinhee JANG ; Yoonho NAM
Investigative Magnetic Resonance Imaging 2023;27(4):221-225
Purpose:
The aim of the present study was to investigate the potential utility of the magnetic susceptibility-based assessment of cerebral oxygen metabolism with a dataset from a memory clinic.
Materials and Methods:
We collected and processed three-dimensional gradient-recalled echo phase data of 290 participants. To analyze oxygen metabolism, quantitative susceptibility mapping was performed for two major veins (superior sagittal sinus and straight sinus), and the venous oxygen saturation was estimated.
Results:
The estimated venous oxygen saturations of the two major veins were positively correlated with the clinical and volumetric measurements. They did not differ with the clinical diagnosis or clinical dementia rating. The values of the superior sagittal sinus were associated with the presence of the apolipoprotein E type 4 allele, when considering age, sex, and their interactions.
Conclusion
The results demonstrate that quantitative susceptibility mapping of clinically available three-dimensional susceptibility-weighted imaging sequences in a large-scale clinical dataset can estimate cerebral oxygen metabolism.
4.The Association between Household Type and Self-rated Health of the Elderly in Korea: Analysis of the National Survey of Older Koreans 2017
Minji CHOI ; Hye Jin JOO ; Taehyun KIM ; Sang Sook BECK ; Woojin CHUNG
Health Policy and Management 2022;32(2):190-204
Background:
In Korea, the population is rapidly aging, and the types of households for the elderly are also diversifying. The self-rated health of the elderly is a valuable health indicator that can comprehensively represent the overall quality of life along with physical, mental, and functional health. On the other hand, studies on the association between household type and self-rated health of the elderly are still insufficient. Thus, this study analyzed the association between household type and self-rated health by gender in Korean older adults.
Methods:
Using data from the analysis of the National Survey of Older Koreans 2017, 10,299 elderly people aged 65 and over were targeted. For the accuracy of the analysis data, 9,910 people were selected as the study sample by excluding proxy responses, those diagnosed with dementia, and non-response. And technical analysis, univariate analysis using the Rao-Scott chi-square test, and logical regression analysis involving survey characteristics were conducted by gender.
Results:
According to the adjusted model with all variables, in both men and women, the odds ratio of self-rated health ‘bad’ in ‘couple (with ill spouse)’ was significantly higher than ‘couple (with spouse)’. It was 2.54 (95% confidence interval [CI], 2.05–3.15) for men and 2.11 (95% CI, 1.70–2.62) for women. In addition, the odds ratio of self-rated health ‘bad’ in ‘living with adult children’ was 1.43 (95% CI, 1.09–1.87) for men and 1.42 (95% CI, 1.15–1.75) for women, which was more significant in women than men.
Conclusion
This study states that there is an association between gender, household type, and self-rated health of the elderly, and the health of a spouse and cohabitation with children have a significant effect on self-rated health. As a result, in order to improve the health status of the elderly, health promotion and health care policies involving the characteristics of the elderly’s gender and household type are needed.
5.Association between High Sensitivity C-Reactive Protein and Metabolic Syndrome in South Korea: A Gender-Specific Analysis
Eunyoung SHIN ; Yongjae LEE ; Taehyun KIM ; Keum Ji JUNG ; Woojin CHUNG
Health Policy and Management 2021;31(2):158-1742
Background:
Metabolic syndrome has been known as a risk of cardiovascular disease. Meanwhile, high sensitivity C-reactive protein (hs-CRP) is used as a predictor of cardiovascular disease. In this paper, we aimed to investigate the association between hs-CRP and metabolic syndrome.Method: A total of 7,633 were chosen as the study population from the 7th Korea National Health and Nutrition Examination Survey dataset (2016–2017). Our dependent variable was whether an individual had metabolic syndrome or not, and the independent variable of interest was hs-CRP which was categorized into three groups. The chi-square tests and hierarchical logistic regression analyses reflecting survey characteristics were conducted. All analyses were stratified by gender.
Results:
According to the adjusted model with all covariates, compared to individuals having the low risk of hs-CRP, those having its average risk were more likely to have metabolic syndrome in men (odds ratio [OR], 1.41; 95% confidence interval [CI], 1.12–1.76) and women (OR, 1.69; 95% CI, 1.33–2.16). Individuals having the high risk was not significantly different in men; however, they were more likely to have metabolic syndrome in women (OR, 2.03; 95% CI, 1.28–3.23).
Conclusion
In an upcoming aging society, it is important to reduce the risk of metabolic syndrome to improve population health. This study suggests that hs-CRP may be used as a marker of the risk of metabolic syndrome in a gender-specific way, thereby contributing to enhancing awareness of the risk of metabolic syndrome among the general public.
7.Oral Health Status and Behavior Factors Associated with Self-Rated Health Status among the Elderly in South Korea: The 7th Korea National Health and Nutrition Examination Survey (2016–2018)
Joo Hee HONG ; Yongjae LEE ; Taehyun KIM ; Roeul KIM ; Woojin CHUNG
Health Policy and Management 2021;31(1):74-90
Background:
It is getting important to improve the oral health status of the elderly because oral health status may affect their health status of the whole body. In this respect, we aimed to explore the association of oral health status and behavior factors with self-rated health status by sex.
Methods:
Using the data from the 7th Korea National Health and Nutrition Examination Survey for health surveys and oral examinations (2016–2018), we analyzed a total of 3,070 people aged 65 or older (men: 1,329; women: 1,741). Our dependent variable, self-rated health status, was divided into two groups: not good (bad and very bad) and good (very good, good, and fair), whereas our independent variables of interest were oral health status and behavior factors. In addition to descriptive analysis and the Rao-Scott chi-square test, reflecting survey characteristics, we conducted hierarchical multivariable logistic regression analyses adjusted for socio-demographics and health status and behavior factors. All analyses were stratified by sex.
Results:
The proportion of people having ‘not good’ self-rated health was 36.5% in women but 24.5% in men. In a model adjusted for all covariates, the self-rated health status showed significant association with the self-rated oral health status. For example, in men, the risk of having ‘not good’ self-rated health was high in people having ‘poor’ (odds ratio [OR], 5.31; 95% confidence interval [CI], 2.34–12.03) self-rated oral health status and in those having ‘fair’ (OR, 4.03; 95% CI, 1.68–9.70) in comparison with those having ‘good’ self-rated oral health status. Dental status regarding speaking difficulty seemed to be very important in influencing self-rated health status. For instance, in women, compared to people having ‘no discomfort’ speaking difficulty, the risk of having ‘not good’ self-rated health was high in people having ‘not bad’ (OR, 1.60; 95% CI, 1.14–2.24) and ‘discomfort’ (OR, 1.79; 95% CI, 1.30–2.47) speaking difficulty. The covariates significantly associated with the risk of having ‘not good’ self-rated health were: physical activity, chronic disease, stress, and body mass index in both sexes; health insurance type and drinking only in men; and economic activity only in women.
Conclusion
Oral health status and behavioral factors were associated with self-rated health status among the elderly, differently by sex. This suggests that public health policies toward better health in the elderly should take their oral health status and oral health behaviors into account in a sex-specific way
8.Oral Health Status and Behavior Factors Associated with Self-Rated Health Status among the Elderly in South Korea: The 7th Korea National Health and Nutrition Examination Survey (2016–2018)
Joo Hee HONG ; Yongjae LEE ; Taehyun KIM ; Roeul KIM ; Woojin CHUNG
Health Policy and Management 2021;31(1):74-90
Background:
It is getting important to improve the oral health status of the elderly because oral health status may affect their health status of the whole body. In this respect, we aimed to explore the association of oral health status and behavior factors with self-rated health status by sex.
Methods:
Using the data from the 7th Korea National Health and Nutrition Examination Survey for health surveys and oral examinations (2016–2018), we analyzed a total of 3,070 people aged 65 or older (men: 1,329; women: 1,741). Our dependent variable, self-rated health status, was divided into two groups: not good (bad and very bad) and good (very good, good, and fair), whereas our independent variables of interest were oral health status and behavior factors. In addition to descriptive analysis and the Rao-Scott chi-square test, reflecting survey characteristics, we conducted hierarchical multivariable logistic regression analyses adjusted for socio-demographics and health status and behavior factors. All analyses were stratified by sex.
Results:
The proportion of people having ‘not good’ self-rated health was 36.5% in women but 24.5% in men. In a model adjusted for all covariates, the self-rated health status showed significant association with the self-rated oral health status. For example, in men, the risk of having ‘not good’ self-rated health was high in people having ‘poor’ (odds ratio [OR], 5.31; 95% confidence interval [CI], 2.34–12.03) self-rated oral health status and in those having ‘fair’ (OR, 4.03; 95% CI, 1.68–9.70) in comparison with those having ‘good’ self-rated oral health status. Dental status regarding speaking difficulty seemed to be very important in influencing self-rated health status. For instance, in women, compared to people having ‘no discomfort’ speaking difficulty, the risk of having ‘not good’ self-rated health was high in people having ‘not bad’ (OR, 1.60; 95% CI, 1.14–2.24) and ‘discomfort’ (OR, 1.79; 95% CI, 1.30–2.47) speaking difficulty. The covariates significantly associated with the risk of having ‘not good’ self-rated health were: physical activity, chronic disease, stress, and body mass index in both sexes; health insurance type and drinking only in men; and economic activity only in women.
Conclusion
Oral health status and behavioral factors were associated with self-rated health status among the elderly, differently by sex. This suggests that public health policies toward better health in the elderly should take their oral health status and oral health behaviors into account in a sex-specific way
9.Retrospective Comparative Study of the Intraoperative Fracture Gap Compression in the Treatment of Intertrochanteric Fracture Using Proximal Femoral Nail Antirotation
Se Jin KIM ; Hong Man CHO ; Jiyeon PARK ; Ki Yong AN ; Young Woo CHUNG ; Woojin SHIN
Journal of the Korean Fracture Society 2020;33(4):179-188
Purpose:
Intertrochanteric fractures can be treated using proximal femoral nail antirotation (PFNA). This study examined the clinical and radiological results of the intraoperative fracture compression.
Materials and Methods:
Ninety-four patients underwent intraoperative compression (Group I), and 88patients underwent natural sliding only (Group II). The patients were followed-up for more than two years. All patients met the following seven conditions: (1) AO/OTA 31-A1, A2 type intertrochanter fracture, (2) availability of compression of more than one cortical bone in the anterior or medial regionof the fracture site under the preoperative imaging test, (3) Singh index grade ≥3, (4) blade position: center-center, center-inferior, (5) tip-apex distance <25 mm, (6) reduction status of good or very good, and (7) positive or neutral medial cortical support position with slightly valgus reduction.
Results:
A slight tendency toward significant differences in acute phase pain between the two groups was observed at six weeks postoperatively (p=0.073). Twenty-four months after surgery, lateral extension of the PFNA helical blade between the two groups showed significant differences (p=0.017). Fracture gaps measured immediately after surgery showed significant differences (p=0.001), and a clear tendency for a significant difference in the average fracture union time was found (p=0.065).
Conclusion
Intraoperative fracture compression, intraoperative fracture compression appears beneficial to achieve a successful union of trochanteric fractures provided that all conditions are met to apply the method safely.
10.Factors Associated with the Use of Medical Care at Hospitals among Outpatients with Hypertension: A Study of the Korea Health Panel Study Dataset (2010–2016)
Sumi LEE ; Sohee PARK ; Heejin KIMM ; Yongjae LEE ; Woojin CHUNG
Health Policy and Management 2020;30(4):479-492
Background:
As the prevalence of hypertension is increasing in Korea, the government is seeking policy actions to manage patients with hypertension more efficiently. In this paper, we aimed to identify factors associated with the use of medical care at hospitals among outpatients with hypertension.
Methods:
We analyzed a total of 15,040 cases of 3,877 outpatients with hypertension obtained from the Korea Medical Panel database from 2010 to 2016. The dependent variable was whether a patient with hypertension visited a hospital or not; and independent variables were the patient’s various socio-demographic, health-related, and heath-status characteristics. We conducted a generalized linear mixed model analysis with logit link for all the cases and then conducted it stratified by gender.
Results:
As a result of a multivariable analysis, women were less likely than to visit at a hospital (odds ratio [OR], 0.44; 95% confidence interval [CI], 0.32–0.61) and people aged 65 years and older than those aged less than 65 years (OR, 0.71; 95% CI, 0.57– 0.89). Residents in Busan, Ulsan, and Gyeongnam were more likely than those in than Seoul, Gyeonggi, Incheon, and Jeju to visit a hospital (OR, 1.40; 95% CI, 1.05–1.86). The likelihood of visiting a hospital was high in people belonging to a group of: the highest level of annual household income (OR, 1.73; 95% CI, 1.30–2.29); Medical care aid recipients (OR, 1.94; 95% CI, 1.34–2.83); people having three or more complex chronic diseases (OR, 1.59; 95% CI, 1.19–2.11); people having diabetes (OR, 1.81; 95% CI, 1.41–2.32);or people having ischemic heart disease or cerebrovascular disease (OR, 6.80; 95% CI, 5.28–8.76). Also, we found that factors associated with the use of medical care at hospitals among outpatients with hypertension differed between genders.
Conclusion
A variety of factors seem to be associated with the use of medical care at hospitals among outpatients with hypertension.Future research needs to find a way to help patients with hypertension visit an appropriate medical institution between clinics and hospitals.

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