분위회귀분석을 이용한 개업 치과의사의 의료수익과 소득에 미치는 요인

최형길 ( Hyungkil Choi ),김명기 ( Myeng Ki Kim ) 한국보건행정학회 2015 보건행정학회지 Vol.25 No.3

Abstract: Background: Dentist’s income is quite variable. We investigate the factors underlying the distribution of dental revenue and dentist income. Methods: Financial and structural variables of private dental practices(N=13,967) were examined with 2010 Economic Census mi-crodata which include non-insurance revenue. We conducted quantile regression method(QRM) and ordinary least square(OLS) in treating skewness and heteroskedasticity of distributions. The effective estimation for the upper and lower range of distribution be-comes possible by QRM. Results: Mid-career dentists are shown to have higher revenue and income. Male dentists achieve the higher revenue and income than female dentists in all quantiles. Group practices show lower income per owner than solo practices significantly. The revenue and income are increased with increasing size of clinics. The high cost in renting the clinic office is found to have a big positive effect on the revenue but a little positive effect on the income. Interestingly the density of dentists shows negative effect on the lowest quantile of the revenue but positive effect on the highest quantile. The lowest quantile of the revenue in the capital areas have the relatively high revenue. The lowest quantile of the income in metropolitan city show higher income than those in other areas signifi-cantly. Conclusion: The suggested QRM is shown to have more effective and efficient tool in finding out determinants of dentists’ revenue and income of our concern. The results of this study are expected to be employed for dentists preparing for the opening practices in their organizational settings and locational selections. The distributional efficiency of dental human resources could be accom-plished if policy makers guide dentists with this knowledge.

대도시와 농어촌에서 치과의료기관 의료수익 분포의 지역 간 차이

최형길(Hyungkil Choi) 대한치과의사협회 2016 대한치과의사협회지 Vol.54 No.12

The increase rate of dentists’ competition is very fast at metropolitan areas in South Korea. We compare metropolitan and rural parameters to investigate the relation between competition and revenue variation. The competition and revenue variables of 73 metropolitan and 75 rural areas were calculated from 2010 Census of Service Industry microdata which include non-insurance revenues of dental clinics. Independent sample t-test results showed that the level of competition among dental clinics in metropolitan areas is higher. The lowest and the low ranked revenues are higher in rural areas. The highest and the average revenues are higher in metropolitan areas. But, 25 percentile and median revenues has no significant difference between two areas. Simple log linear regression results showed that the number of clinics could explain the distribution of revenues in both areas better than the density of active dentists and Herfindahl-Hirschman index. In the areas with many clinics have high maximum and average revenues and low minimum revenues. The increasing rate of maximum revenues is higher in metropolitan areas though the decreasing rate of minimum revenues is higher in rural areas. Metropolitan areas have higher Gini coefficients than rural areas, but the increasing rate of Gini coefficients is lower than rural areas. Findings from this study are useful reference when the dentists select the opening areas. One is that the median revenues between metropolitan and rural areas have no significant difference. The other is that the rural areas ensure the more stable and uniform revenues. The results would help to relieve the consumptive competition among dentists and to achieve the distributional efficiency of dental human resources.

의료기관 간 경쟁과 진료수익 분포를 통해 살펴본 치과의사의 개업 지역 선정

최형길(Hyungkil Choi),김명기(Myeng Ki Kim) 대한치과의료관리학회 2015 대한치과의료관리학회지 Vol.3 No.1

커크 패트릭 모형을 이용한 임플란트 연수 교육 효과 평가

윤경인(Kyoung-In Yun),최형길(Hyungkil Choi),김명기(Myeng Ki Kim) 대한치과의사협회 2016 대한치과의사협회지 Vol.54 No.1

Objectives: This study evaluated the outcomes of continuing professional education in implant dentistry using Kirkpatrick"s four-level evaluation model. Material and methods: The study was carried out through a questionnaire distributed to dentists who attended a continuing professional education in implant dentistry, 2008~2012. They were asked to fill out questionnaires at least 6 months after its completion. Results: Mean ages of total 23 dentist was 44.8°æ8.2. Mean period after completion of education was 2.7°æ1.2. Knowledge (level 2) (r=0.71, p<0.01) and behavior (level 3) (r=0.68, p<0.01) was positively correlated with topic and methods of education in reaction (level 1). Behavior was positively correlated with knowledge (r=0.79, p<0.01). Result (level 4) was positively correlated with knowledge (r=0.64, p<0.01) and behavior (r=0.86, p<0.01). Conclusion: Reaction affects on knowledge, behavior and result in order.

시군구 치과의료기관의 매출액 양상 비교

이창훈(Changhoon Lee),최형길(Hyungkil Choi),김명기(Myeng Ki Kim) 대한치과의료관리학회 2016 대한치과의료관리학회지 Vol.4 No.1

사회적 경제를 통한 복지기술 생태계 탐구; 의료복지사회적협동조합 치과의원의 사례

박유이 ( Yuyi Park ),최형길 ( Hyungkil Choi ),한동헌 ( Dong-hun Han ),강준호 ( Joon-ho Kang ),안성훈 ( Sung Hoon Ahn ),안상훈 ( Sang-hoon Ahn ) 대한예방치과·구강보건학회 2017 大韓口腔保健學會誌 Vol.41 No.1

Objectives: In this study, we strived to determine the possibility of socioeconomic welfare in oral healthcare by analyzing the National Health Insurance (NHI) coverage rate. To date, efforts to realize the “social economy” of healthcare are active. While oral disease is common and chronic among Koreans, the rate of NHI coverage of dental clinics is substantially lower than that of the medical clinics. Methods: We defined the NHI coverage of dental clinics as a proxy for “social skills” to improve oral health problems. The data were collected through a comparative analysis of the NHI coverage of dental clinics and that of non-dental clinics, in health welfare social cooperatives. Results: The NHI coverage rate of the dental clinics in health welfare social cooperatives ranged from 0.97 to 2.62 times that of the non-dental clinics in health welfare social cooperatives. Conclusions: In conclusion, responsible management is recommended for making health welfare social cooperatives meaningful as a social economy.

중소 규모의 치과의원에 균형성과표를 적용하기 위한 핵심성과지표 개발

김상석 ( Sangsuk Kim ),김명기 ( Myeng Ki Kim ),최형길 ( Hyungkil Choi ) 한국병원경영학회 2017 병원경영학회지 Vol.22 No.1

The purpose of this study is to develop the KPIs(Key Performance Indices) needed to improve management and strategy in the dental clinic based on the four perspectives of BSC(Balanced Scorecard). The questionnaire was conducted on 52 dentists approved by Dental Managment Research Committee in Seoul National University as a panel. Using the Delphi technique, the top five KPIs for each point of perspective in BSC were extracted from KPI pools. In the third survey, the top five KPIs of all points were compared with each other through AHP(Analytic Hierarchy Process) method, and priority and overall importance rankings were calculated. The biggest difference in the three level AHP results was the customer perspective took priority to others. In the second survey, the financial perspective, which was number one, was pushed back. The overall significance of KPIs was in the order of customer, internal process, finance, learning and growth perspective, with the exception of medical profits (5th of 20) and new patient growth (10th of 20). We were able to overcome the limitations of the Delphi Technique with the AHP method. In general, the financial perspective in BSC is known to be the most important, but we conclude that the customer perspective is more important through the pairwise comparison survey. In the current dental service market, which is a long-term recession, excessive competition, customer satisfaction and customer relationship management seem to be the first goal to pursue in dental clinic.

치과 환자의 항생제 처방에 영향을 주는 요인

김혜성 ( Hyesung Kim ),김명기 ( Myeng Ki Kim ),최형길 ( Hyungkil Choi ) 대한예방치과·구강보건학회 2017 大韓口腔保健學會誌 Vol.41 No.1

Objectives: Resistance to antibiotics is getting worse every day. Antibiotics are commonly prescribed medicines for the prevention and treatment of bacterial infections in dental clinics. Nationally, we are attempting to reduce the use of antibiotics, but this cannot be easily achieved. As a precedent study, we investigated factors affecting antibiotic prescription in dental clinics. Methods: We analyzed electronic patient records of S dental hospital located in a big city. A total of 12,711 medical records were analyzed. The type of prescribed antibiotic, the prescription rate, and the number of prescription days were analyzed by chi-square test and t-test. Factors associated with the rate of antibiotic prescription were analyzed using logistic regression by dividing the independent variables into four groups: patient characteristics, dentist characteristics, treatment characteristics, and time characteristics. Results: The rate of antibiotic prescription was 91.7% for the first implant surgery and 60.0% for minor operations including incision and drainage. The duration of antibiotic prescription differed according to the sex of the dentist and the type of treatment. The logistic regression analysis showed that the rate of antibiotic prescription was higher in male patients, in older patients, and in female dentists, and decreased with increasing age of the dentist. Compared with basic treatment, the odds ratio of first implant surgery was highest at 102.166 times, minor operation at 18.997, and extraction of impacted tooth at 14.429. Conclusions: This is the first study to analyze the factors affecting prescription rate of antibiotics in dental clinics. We found that the antibiotic prescription rate was significantly different for each dental treatment. It was necessary to analyze the prescription rate of antibiotics according to the type of treatment. The fact that prescribing antibiotics differed according to dentist characteristics indicated that consistent guidelines need to be established and promoted.

종이 없는 치과를 구현하기 위한 치과의료 정보의 흐름

박선규(Seon Gyu Park),김명기(Myeng Ki Kim),최형길(Hyungkil Choi) 대한치과의료관리학회 2016 대한치과의료관리학회지 Vol.4 No.1