• 한국ITS학회 논문지
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• 제19권4호
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• pp.13-29
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• 2020

자동차는 우리의 일상에 필수재가 된 지 오래지만 자동차 교통사고로 인한 사회적 비용이 국가 예산의 9%를 넘을 정도로 심각하여 이에 대한 국가적인 예방 및 대응 체계 구축이 매우 필요한 실정이다. 이에 본 연구에서는 빅데이터 분석 기법을 활용하여 차대차 교통사고의 상해 심각도를 정확히 예측할 수 있는 모형을 제시하고자 하였다. 이를 위해 과거 3년간의 전국교통사고 발생 데이터를 토대로, K-최근접 이웃, 로지스틱 회귀분석, 나이브베이즈, 의사결정나무, 앙상블 알고리즘을 적용하여 각 모델의 상해 심각도 분류의 성능을 비교 분석하였다. 특히 이 과정에서 각 상해 심각도 수준 간의 데이터 수에 차이가 있음에 주목하여 표본수가 많은 그룹에 대해서는 과소표본추출을 시행하는 등의 방법을 통해 분류 예측의 정확도를 높일 수 있었고, 분산 분석을 통해 모델의 유의성을 검증하였다.

• Journal of Preventive Medicine and Public Health
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• 제47권6호
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• pp.336-342
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• 2014

Objectives: Child mortality remains a critical problem even in developed countries due to low fertility. To plan effective interventions, investigation into the trends and causes of child mortality is necessary. Therefore, we analyzed these trends and causes of child deaths over the last 30 years in Korea. Methods: Causes of death data were obtained from a nationwide vital registration managed by the Korean Statistical Information Service. The mortality rate among all children aged between one and four years and the causes of deaths were reviewed. Data from 1983-2012 and 1993-2012 were analyzed separately because the proportion of unspecified causes of death during 1983-1992 varied substantially from that during 1993-2012. Results: The child (1-4 years) mortality rates substantially decreased during the past three decades. The trend analysis revealed that all the five major causes of death (infectious, neoplastic, neurologic, congenital, and external origins) have decreased significantly. However, the sex ratio of child mortality (boys to girls) slightly increased during the last 30 years. External causes of death remain the most frequent origin of child mortality, and the proportion of mortality due to child assault has significantly increased (from 1.02 in 1983 to 1.38 in 2012). Conclusions: In Korea, the major causes and rate of child mortality have changed and the sex ratio of child mortality has slightly increased since the early 1980s. Child mortality, especially due to preventable causes, requires public health intervention.

• 문화기술의 융합
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• 제5권4호
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• pp.43-49
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• 2019

본 연구의 목적은 레저용품 소비시장의 지출결정요인을 추정하는데 있다. 연구목적을 달성하기 위해 통계청의 가계동향조사 자료중 6597개의 표본을 이용하였다. 지출결정요인을 추정하기 위해 Tobit모형을 적용하였으며 분석결과, 스포츠용품에 대한 지출결정요인은 결혼여부, 교육수준, 연령, 가구 내 세대수, 주택소유여부, 소득수준이 스포츠 용품 지출에 영향력을 가지고 있는 변수로 분석되었다. 등산용품, 낚시용품, 사냥용품과 같은 레저용품의 지출에 영향력을 미치는 변수는 성별, 결혼여부, 교육수준, 연령, 가구 내 세대수, 주택소유여부, 소득수준이 영향력을 가지고 있는 것으로 나타났다. 이와 같은 분석결과는 레저문화를 정착시키기 위한 정책 자료로 활용할 수 있을 것으로 판단된다. 통계청의 가계동향조사는 전국적인 설문조사를 통해 매년 계속되는 자료로 신뢰할 수 있는 자료임에도 불구하고 소비자의 지출결정요인을 보다 구체적이고 세밀하게 추정하기 위한 심리적인 특성과 같은 다양한 변수를 적용할 수 없다는 연구의 한계점을 가진다.

• The Korean Journal of Pain
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• 제34권3호
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• pp.322-331
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• 2021

Background: The present study employed National Health Insurance Data to explore complex regional pain syndrome (CRPS) updated epidemiology in a Korean context. Methods: A CRPS cohort for the period 2009-2016 was created based on Korean Standard Classification of Diseases codes alongside the national registry. The general CRPS incidence rate and the yearly incidence rate trend for every CRPS type were respectively the primary and secondary outcomes. Among the analyzed risk factors were age, sex, region, and hospital level for the yearly trend of the incidence rate for every CRPS. Statistical analysis was performed via the chi-square test and the linear and logistic linear regression tests. Results: Over the research period, the number of registered patients was 122,210. The general CRPS incidence rate was 15.83 per 100,000, with 19.5 for type 1 and 12.1 for type 2. The condition exhibited a declining trend according to its overall occurrence, particularly in the case of type 2 (P < 0.001). On the other hand, registration was more pervasive among type 1 compared to type 2 patients (61.7% vs. 38.3%), while both types affected female individuals to a greater extent. Regarding age, individuals older than 60 years of age were associated with the highest prevalence in both types, regardless of sex (P < 0.001). Conclusions: CRPS displayed an overall incidence of 15.83 per 100,000 in Korea and a declining trend for every age group which showed a negative association with the aging shift phenomenon.

• 보건행정학회지
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• 제33권4호
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• pp.457-478
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• 2023

Background: This study aims to contribute to the adjustment of the appropriate doctor manpower by analyzing the distribution, supply and demand, and estimation of the doctor manpower. Methods: This study utilized the medical personnel data of the Ministry of Health and Welfare, population trend data of the National Statistical Office, and health insurance benefit performance data of the National Health Insurance Service. Based on 2021, we compared the number of doctors in actual supply and the number of doctors in demand according to the amount of medical use by gender and age for 250 regions. Logistic regression analysis and scenario analysis were performed to estimate the future medical workforce by considering the demand for doctors according to the future demographic structure, the size of the quota in medical schools, and the retirement rate. Results: There were 186 regions in which the supply of doctors was below average, and the average ratio of the number of doctors in supply to demand in the region was 62.1%. Conclusion: In order to increase the number of active doctors nationwide to at least 80%, 7,756 people must be allocated. The number of doctors in demand is estimated to decrease after increasing to 1.492 times in 2059. The future projected number of doctors is expected to increase to 1.349 times in 2050 and then decrease taking into account the doctor quota and the retirement rate.

• 디지털융복합연구
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• 제16권9호
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• pp.503-512
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• 2018

이 연구는 예비초등교사가 인식하는 체육교수신뢰와 체육교과태도 및 수업만족도의 관계를 실증적으로 구명하는데 목적이 있었다. 이러한 연구목적을 수행하기 위하여 전국에 분포되어 있는 교육대학교 재학생 328명을 대상으로 자료를 수집하여 분석하였다. 수집된 자료는 통계프로그램인 IBM SPSS 23.0을 이용하여 기술통계분석, 신뢰도분석, 탐색적 요인분석, 상관분석을 실시하였으며, IBM AMOS 23.0 프로그램을 이용하여 확인적요인분석 및 구조방정식모형 검증을 실시하였다. 이러한 연구 과정을 통해 다음과 같은 결론을 얻었다. 첫째, 예비초등교사의 체육교수신뢰는 체육교과태도에 유의한 영향을 미친다. 둘째, 예비초등교사의 체육교과태도는 수업만족도에 유의한 영향을 미친다. 셋째, 예비초등교사의 체육교수신뢰는 수업만족도에 유의한 영향을 미친다. 이 연구는 예비초등교사를 대상으로 체육교과를 지도하는 데 유용한 기초자료로 활용될 수 있을 것이다.

• 한국융합학회논문지
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• 제8권5호
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• pp.255-263
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• 2017

이 연구는 한국 신노년층의 회복탄력성과 생산적 노화의 관계에서 자아존중감의 매개효과를 실증적으로 구명하는데 목적이 있다. 이에 따른 연구대상은 대도시와 중/소도시 그리고 농촌지역 신노년층을 모집단으로 설정하고, 집락무선표집방법을 통해 484명을 대상으로 자료를 수집하였다. 자료분석은 통계프로그램인 IBM SPSS 20.0과 AMOS 5.0 프로그램을 활용하여, 빈도분석, 탐색적 요인분석, 확인적 요인분석, 신뢰도 분석 그리고, 공변량구조 분석을 실시하였다. 이러한 과정을 통해 다음과 같은 결과을 얻었다. 첫째, 한국 신노년들의 회복탄력성은 자아존중감에 영향을 미친다. 둘째, 한국 신노년들의 회복탄력성은 생산적 노화에 영향을 미친다. 셋째, 한국 신노년들의 자아존중감은 생산적 노화에 영향을 미친다. 그리고 마지막으로 넷째, 한국 신노년들의 회복탄력성과 생산적 노화의 관계에서 자아존중감은 부분매개로서 매개효과가 있다.

• 응용통계연구
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• 제27권5호
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• pp.743-753
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• 2014

Kim 등 (2006)과 Kim 등 (2009)은 2002년에 (사)볼런티어 21에서 조사한 설문자료에 기초하여 우리나라 개인의 기부횟수에 영향을 주는 유의적 설명변수를 보고한 바 있다. 본고에서는 Kim 등 (2006)과 Kim 등 (2009)의 계산오류를 발견하여 이를 수정하고, 아울러 Kim 등 (2009)이 적용한 0이 팽창된 포아송 모형에 로지스틱 회귀모형을 추가하였다. 동 로지스틱 모형으로 기부행위(0, 1)에 영향을 주는 설명변수를 식별하고, 아울러 기부횟수가 작은 군(群)과 큰 군(群)을 판별하여 주는 설명변수를 식별하고자 한다.

• 보건행정학회지
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• 제22권1호
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• pp.85-108
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• 2012

One of the ways to achieve the principle of equal access for equal needs, availability and geographical accessibility of health care resources regardless of resident sites is important. The purpose of this paper is to measure socioeconomic inequities in distribution of health care resources among regions in the Republic of Korea (hereafter Korea). Data were extracted from regional statistics of National Health Insurance, Community Health Survey, Korea Social Science Data Archive, and Korean Statistical Information Services at the same period of 2009. The dependent variables were the number of health workforce and health care facilities in each region. The proxy indicator of regional socioeconomic status was local tax per person. To identify whether inequalities among regions, we examined the concentration index(CI) and indirectly standardized CI by controlling each region's demographics and need factors. Total observations were 232 districts in nationwide, and we analyzed separately Seoul(25 districts) and non-Seoul areas(207 districts). The standardized CI values of health care resources were positive(favoring the rich region) across the nation in almost all kinds of resources. Especially the number of specialist, dentist, dental clinics, clinics, oriental medical clinics, pharmacists, and pharmacies were statistically significantly favoring the rich region. But the CI for the number of long-term care hospitals, public health centers were negative(favoring the poor region). The tendency of CI presenting positive values were increased in Seoul area. But in the case of non-Seoul, the CI indexes were nearly zero. The results suggest that except the Seoul area, little regional socioeconomic-related inequalities were observed in the distribution of health care resources in Korea.

• 치위생과학회지
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• 제20권1호
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• pp.25-33
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• 2020

Background: This study investigated the status of oral health promotion activities for adult workers in public health centers and industrial dental offices and provided basic data for the model development of oral health promotion program for adult workers in Korea. Methods: A questionnaire was developed separately according to the person who in charge of the oral health promotion activities in public health centers nationwide and dental hygienists working in 20 industrial dental offices. This survey was conducted through postal survey and consisted of 29 items and 35 items respectively, including 19 common items for general information, oral health promotion program status and opinion. Statistical analysis was performed using the IBM SPSS ver. 23.0. Results: We analyzed the data of 147 public health centers (57.9%) and 9 industrial dental offices (45.0%). A workforce with a lack of practice was the biggest barrier to oral health promotion activities for adult workers. However, both groups showed high intention for the practice of adult worker's oral health promotion activities. Also, they showed willingness to work together in an organic partnership to perform their roles (94.4% and 77.8%, respectively). Regarding the scope of cooperation in the implementation of the industrial oral health promotion activity linked to the public health center, dental hygienists of industrial dental offices responded that they could coordinate necessary matters and schedule management. Conclusion: The development of an oral health promotion program aided by the relationship between public health centers and industrial dental offices is essential for the oral health promotion of adult workers. The possibility of cooperation between the abovementioned centers was confirmed through this study. In a long-term perspective, it would be necessary to identify a method to institutionalize industrial dental hygienists for the provision of continuous oral health care in workplaces.