• Journal of Korea Society of Industrial Information Systems
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• v.25 no.5
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• pp.91-102
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• 2020

The Internet of Things (IoT) is characterized as the market where various companies compete for the same consumers. Thus, there are differences in functions and performance provided by the main business area and other characteristics of the service providers. This paper investigates whether satisfaction with the service provided depends on the characteristics of the operator by using sentiment analysis of comments. To achieve this goal, word importance analysis and sensitivity analysis are conducted on 34,310 reviews of 41 applications registered in the Google Play. The review analysis was conducted at various levels, including TD-IDF (Term frequency-inverse document frequency) value of keywords, service sectors, the origin of providers, and domestic/foreign providers. The results show that users' overall assessment of IoT services was found to be low, and smart homes received relatively high reviews compared to other services, and manufacturing-based and overseas providers received relatively higher evaluations than others.

• International Area Studies Review
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• v.18 no.3
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• pp.249-265
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• 2014

The international mobile roaming service has been provided for more than one decade, but high price of international mobile roaming service, which is represented as 'bill shock' is still of major concern in lots of countries including Korea. With understanding of the given price issues, the international organizations, such as OECD, EU, WTO, ITU have been conducting extensive analyses and studies to find suitable solutions and appropriate measures. In the case of EU regulate the international roaming charges and implement the regulation policy. OECD do not have a compelling regulation on roaming charges, but OECD request to member state to find the reasons of high roaming charges and its solution. WTO Council for Trade in Services is reviewing the international mobile roaming in terms of whether impede international trade in services. The purpose of this study is to review many different approaches in international organizations related to reducing international roaming service charges, to drive some regulatory policy directions for reducing roaming charges.

• The Journal of Information Systems
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• v.20 no.4
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• pp.233-254
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• 2011

Although e-commerce is growing fast, e-commerce consumers are still under higher risk and uncertainty in the comparison of the traditional commerce's. Consumer review boards of online shopping malls are good measures to help buyer's decision making, and should be managed effectively by sellers. We formulate the research model on consumer trust formation on seller managed web review boards on the background of previous literatures on e-WOM and trust. Our data analysis with 368 samples shows seller's reputation, e-service quality, perceived reviewer's benevolence and ability have significant positive effect on the trustworthiness of the board. Product involvement shows weak negative moderation effect on the relationship between perceived reviewer's benevolence and trustworthiness of review boards.

• The Korean Journal of Emergency Medical Services
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• v.27 no.1
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• pp.7-18
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• 2023

Purpose: This study conducted a systematic literature review to analyze the factors related to suicidal ideation among firefighters. Methods: A systematic literature review was conducted to identify factors influencing suicidal ideation among firefighters, using Korean academic information search services from January to June 2022. A total of 238 articles were searched using keywords such as "firefighter," "depression," "post-traumatic stress disorder (PTSD)," "cognitive emotion regulation," "suicide," and "suicidal ideation." Among them, nine articles were selected for analysis using descriptive correlation studies. Results: It was found that the relationship between firefighter stress (PTSD) and suicidal thoughts was mediated by depression. Even if the stress level (PTSD) was high, suicidal thoughts decreased when the emotional coping level was high. Conclusion: To prevent firefighters from committing suicide, intervention programs with effective approaches to quickly identify high at-risk people and improve their emotional coping skills, should be implemented.

• Journal of Society of Preventive Korean Medicine
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• v.20 no.2
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• pp.27-38
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• 2016

Backgrounds : Taiwan has similar national health insurance (NHI) system for traditional medicine with South Korea. Recently, new quality improvement policies for traditional medicine is being attempted in Taiwan. Objectives : This study aimed to review the Taiwanese NHI system for Chinese Medicine (CM) and introduce quality improvement policies. Methods : Research articles, reports, government publications and year books which handled traditional medicine system and NHI system in Taiwan were searched and collected. The authors analyzed and summarized the contents in a qualitative manner. Results : In Taiwanese NHI system, CM procedures and medication for outpatients are reimbursed through a mix of fee-for-service and global budget payment system. CM shares 4% of total expenditure of NHI in Taiwan. Mostly, the expenses for procedures are reimbursed regardless of disease type, however, in the specialized program for quality improvement, CM doctors have to comply with standard operating procedures (SOPs). Conclusions : Taiwanese NHI system implemented SOP-based new reimbursement system for CM. Yet, the scientific evidences for SOPs are not sufficient, it can be useful references when we develope disease related reimbursement system for Korean Medicine in South Korea.

• Journal of Korean Foot and Ankle Society
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• v.21 no.2
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• pp.66-69
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• 2017

Purpose: This study reports on limb amputations in diabetic patients according to gender, age, and region based on the data from the Korean Health Insurance Review & Assessment Service. Materials and Methods: The number of amputations was compared by region, age, gender, and year, as well as by femoral region, lower leg, foot, and toe in diabetic patients who received limb amputation. This analysis was performed based on the data from the Korean Health Insurance Review & Assessment Service, between January 2009 and December 2014. Results: The total number of amputations between the study period was 9,155. The number of patients who were treated at hospitals for diabetes in 2009 was 1.9 million, among which, 1,214 patients underwent amputation. In 2014, the incidence of diabetes was 1,747 in 2.58 million individuals. With this rising incidence of diabetes, the amputation of limbs due to diabetes is increasing every year. In particular, the following regions were amputated more often: femoral region, 2.3%; lower legs, 19.6%; feet, 18.1%; and toes 60.0%. Regarding gender differences, males showed a higher amputation rate than females for all body parts. With respect to region, Seoul was the highest with 30.2%, followed by Gyeonggi with 19.9%, and Busan with 8.8%. According to age, older age showed greater diabetic amputation rate. Conclusion: In accordance with the rising incidence of diabetes, the diabetic amputation is also increasing. Here, we showed that toes were amputated with the highest percentage and males had greater amputation rate than females for all body parts. Moreover, amputation rate was highest in older diabetic patients, especially for those in their seventies. Additionally, Seoul was the region with highest amputation rate.

• Journal of Oriental Neuropsychiatry
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• v.25 no.4
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• pp.411-422
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• 2014

Objectives: A large number of patients require psychiatric therapy. We attempted to determine the present situation regarding psychotherapy and neuropsychological tests for dementia in Korean medicine for the benefit of the Health Insurance Review and Assessment Service (HIRAS). The aim of this study was to aware of the current status about psychotherapy and neuropsychological test for dementia in Korean medicine. Methods: We searched the medical practice records for psychotherapy and neuropsychological tests in oriental neuropsychiatry between 2009 and 2013 using the Health Insurance Review and Assessment Service (HIRAS) database. The search categories were: IJeongByunGi (Medical practice code:59001), JiUnGoRoen (59002), Kyungjapyungji (59003), OhJiSangSeung (59004), neuropsychological test for dementia (29005). Results: 1. The number of patients treated with Korean Medical Psychotherapy increased annually by 151%. The total number of patients treated with Korean Medical Psychotherapy was 4,289 in 2013. 2. The total cost for patients treated with Korean medical Psychotherapy in the public health medical insurance budget was 268,032,000 won in 2013. The average medical cost for one therapy was 17,000 won in 2013. 3. The number of patients in local clinics is increasing faster than the number in Korean medical hospitals. 4. The age group between 20~30 years of age, for both men and women, is the group with the greatest density in Korean Medical Psychotherapy. 5. Neuropsychological Testing for Dementia in Korean Medicine is slowly decreasing. Conclusions: The prevalence of mental illness in Korea is increasing, therefore, the demand for Korean Medical Psychotherapy has increased recently. Authorizing Korean Medical psychiatrists to utilize Korean mental Health resources is essential. This study could be helpful in understanding the current status for the purpose of expanding Korean Medical Psychotherapy.

• Health Policy and Management
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• v.31 no.4
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• pp.451-461
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• 2021

Background: Readmissions related to lack of quality care harm both patients and health insurance finances. If the factors affecting readmission are identified, the readmission can be managed by controlling those factors. This paper aims to identify factors that affect readmissions of convalescent rehabilitation patients. Methods: Health Insurance Review and Assessment Service claims data were used to identify readmissions of convalescent patients who were admitted in hospitals and long-term care hospitals nationwide in 2018. Based on prior research, the socio-demographics, clinical, medical institution, and staffing levels characteristics were included in the research model as independent variables. Readmissions for convalescent rehabilitation treatment within 30 days after discharge were analyzed using logistic regression and generalization estimation equation. Results: The average readmission rate of the study subjects was 24.4%, and the risk of readmission decreases as age, length of stay, and the number of patients per physical therapist increase. In the patient group, the risk of readmission is lower in the spinal cord injury group and the musculoskeletal system group than in the brain injury group. The risk of readmission increases as the severity of patients and the number of patients per rehabilitation medicine specialist increases. Besides, the readmission risk is higher in men than women and long-term care hospitals than hospitals. Conclusion: "Reducing the readmission rate" is consistent with the ultimate goal of the convalescent rehabilitation system. Thus, it is necessary to prepare a mechanism for policy management of readmission.

• Health Policy and Management
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• v.31 no.4
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• pp.508-517
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• 2021

Background: After the first case of coronavirus disease 2019 (COVID-19) in January 2020, Korea has experienced three waves in 2020. This study aimed to analyze changes in health care utilization according to the period of the 1st to 3rd waves of the COVID-19 pandemic. Methods: We analyzed 3,354,469,401 national health insurance claims from 59,104 medical facilities between 2017 and 2020. Observed-to-expected ratios (O:E ratio) with data from 2017 to 2019 as expected values and data from 2020 as observed values were obtained to analyze changes in medical utilization. T-test was used to test whether the difference of observed and expected values was statistically significant. Results: In 2020, the O:E ratio was 0.894, indicating a decrease in health care utilization overall during the pandemic. The O:E ratio of the 1st wave was 0.832, which was lower than those of the second (0.886) and third (0.873) waves. Health care utilization decreased relatively more among outpatient, women, children and adolescents, and health insurance patients. And health care utilization decreased more in small medical facilities and in Daegu and Gyeongbuk during the first wave. During the pandemic, the O:E ratios of respiratory diseases were 0.486-0.694, while chronic diseases and mental diseases were more than 1.0. Conclusion: Health care utilization decreased during the COVID-19 pandemic overall, and there were differences by COVID-19 waves, and by the characteristics of patients and medical facilities. It is necessary to understand the cause of changes in health care utilization in order to cope with the prolonged COVID-19 pandemic.

• 한국노년학
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• v.30 no.1
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• pp.81-91
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• 2010

The purpose of this study was to test a validity and reliability of Cognitive Performance Scale(CPS), a cognitive measure generated from 5 items(comatose status, decision making, short-term memory, making self understood, and eating). Method: 393 patients in 2 hospitals for the elderly with dementia were measured with CPS by two nurses independently. The inter-rater agreement was tested by comparing two scores. The CPS score was compared with GDS, which was measured by doctors and nurses, and MMSE score which was drawn from the claim data of Health Insurance Review & Assessment Service. Result: The correlation coefficient between CPS and GDS was 0.742(p<0.0001), CPS and MMSE was -0.794(p<0.0001). The Cronbach's coefficient alpha of CPS was 0.742, Kappa value was 0.772~1.000. The CPS showed high validity and reliability in long term care hospitals of Korea.