• Wind and Structures
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• 제27권6호
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• pp.357-368
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• 2018

For a long cable-stayed bridge, stay cables are its most important load-carrying components. In this paper, long-term monitoring of super-long stay cables of Sutong Bridge is introduced. A comprehensive data analysis procedure is presented, in which time domain and frequency domain based analyses are carried out. In time domain, the vibration data of several long stay cables are firstly analyzed and the standard deviation of the acceleration of stay cables, and its variation with time are obtained, as well as the relationship between in-plane vibration and out-plane vibration. Meanwhile, some vibrations such as wind and rain induced vibration are detected. Through frequency domain analysis, the basic frequencies of the stay cables are identified. Furthermore, the axial forces and their statistical parameters are acquired. To investigate the vibration deflection, an FFT-based decomposition method is used to get the modal deflection. In the end, the relationship between the vibration amplitude of stay cables and the wind speed is investigated based on correlation analysis. Through the adopted procedure, some structural parameters of the stay cables have been derived, which can be used for evaluating the component performance and corresponding management of stay cables.

• 보건행정학회지
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• 제26권1호
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• pp.39-50
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• 2016

Background: This study examined patient and hospital factors related to long-stay admissions in long-term care hospitals (LTCHs) among older people in Korea. Methods: We analyzed health insurance claims data, entitlement data, and institutional administrative data from the National Health Insurance Service databases between 2010 and 2012. At the patient level, we compared characteristics of patients staying in LTCHs for over 180 days (the long-stay group) with those staying in LTCHs for less than 90 days during a calendar year. At the hospital level, we examined the general characteristics and staffing levels of the top 10% of hospitals with the highest proportion of patients whose length of stay (LOS) was 180+ days (the hospitals with long-stay patients) and compared them with the top 10% of hospitals with the highest proportions of patients whose LOS was less than 90 days (hospitals with shorter-stay patients). Results: The long-stay group accounted for about 40% of all LTCH patients. People in the group were more likely to be women, aged 80+, living alone, and experiencing more than two health conditions. Compared to the hospitals with shorter-stay patients, those with long-stay patients were more likely to be occupied by patients with behavior problems and/or impaired cognition, owned by corporate or local governments, have more beds and a longer period of operation, and deliver services with lower staffing levels. Conclusion: This study found long-stay older people in LTCHs and those in LTCHs with high proportions of long-stay older patients had several distinct characteristics compared to their counterparts designated in this study. Patient and hospital characteristics need to be considered in policies aiming to resolve long-stay admissions problems in LTCHs.

• 한국병원경영학회지
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• 제6권1호
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• pp.107-119
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• 2001

There has been pointed out that a great portion of hospitalized patients stay in hospitals longer than necessary, often even after the completion of necessary care. This causes that hospital resources are not used efficiently. In order to identify underlying forces in postponing inpatients' discharge, this study aimed to investigate reasons for long-term stay of patients admitted in general hospitals. A total of 135 patients, who were staying at 7 general hospitals in Inchon and Kyonggi-Do for more than 60 days, were surveyed with a self-administered questionnaire between April 3 and April 10, 2000. Medical reasons including incompleteness of necessary care, difficulty in receiving outpatient-based care, and being under physical therapy were the most significant factors associated with long-term stay, followed by the lack of familial resources to take care of patients after discharge. Financial problems such as inability to pay for hospital bills were not significant factors influencing long-term stay. Regression analyses were conducted for medical reasons, familial resources, and financial problems, respectively. It was shown that receiving physical therapy and the number of admission in the past were significant predictors for medical reasons. The lack of familial resources as a reason for long-term stay had a positive relationship with the degree of need for aid in daily living. It may be recommended for the hospitals to cope with administrative problems due to the patients' long-term stay, considering the reasons of it, and their characteristics. And also, institutional efforts like vitalizing the home care service systems by hospitals as the continuing care after discharge should be needed.

• 보건행정학회지
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• 제31권2호
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• pp.173-179
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• 2021

Background: In Korea, the length of stay and medical expenses incurred by medical aid patients are increasing at a rate faster than the national health insurance. Therefore, there is a need to create a management strategy for each type of hospitalization to manage the length of stay of medical aid patients. Methods: The study used data from the 2019 National Health Insurance Claims. We analyzed the factors that affect the length of stay for 186,576 medical aid patients who were hospitalized for more than 31 days, with a focus on the type of hospitalization in long-term care hospitals. Results: The study found a significant correlation between gender, age, medical aid type, chronic disease ratio, long-term care hospital patient classification, and hospitalization type variables as factors that affect the length of hospital stay. The analysis of the differences in the length of stay for each type of hospitalization showed that the average length of stay is 291.4 days for type 1, 192.9 days for type 2, and 157.0 days for type 3, and that the difference is significant (p<0.0001). When type 3 was 0, type 1 significantly increased by 99.4 days, and type 2 by 36.6 days (p<0.0001). Conclusion: A model that can comprehensively view factors, such as provider factors and institutional factors, needs to be designed. In addition, to reduce long stays for medical aid patients, a mechanism to establish an early discharge plan should be prepared and concerns about underutilization should be simultaneously addressed.

• 한국치위생학회지
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• 제24권1호
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• pp.35-43
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• 2024

Objectives: Previous research on turnover has been conducted from the organization's perspective. However, for the long-term retention of dental hygienists, it is necessary to conduct research from an individual's perspective. The purpose of this study is to examine the impact of achievement motivation on the intention to stay of dental hygienists. Methods: This study conducted an online survey targeting dental hygienists working in dental healthcare institutions, using convenience sampling from September, 2023. The analysis included 152 participants with long-term work experience and 121 participants with shorter work experience. Multiple regression analysis was conducted to identify factors influencing retention intentions (PASW Statistics ver. 23.0, p<0.05). Results: Factors influencing intention to stay for long-term dental hygienists included the number of dental hygienists and achievement motivation (responsibility, challenge, task orientation), with a significant impact (adj. R²=0.317). For shorter-term dental hygienists, achievement motivation (challenge, task orientation) demonstrated a significant impact (adj. R²=0.164). Conclusions: It was observed that intrinsic factors, particularly achievement motivation, had a significant impact on intention to stay. Consequently, exploring strategies to satisfy intrinsic motivation, such as achievement motivation, is deemed necessary.

• 한국산림과학회지
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• 제109권4호
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• pp.544-552
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• 2020

본 연구는 국립산림치유원에서 2019년 진행된 장기체류 산림치유프로그램 「숲 속 힐링스테이」에 참가한 49명을 대상으로, 참여 전·후 설문조사 및 혈압, 체성분, HRV 등 신체변화를 측정하여 프로그램의 효과성을 분석했다. 연구결과, 장기체류 산림치유프로그램 참여 후에 참여자의 부정감정이 통계적으로 유의하게 감소하였고, 자율신경 균형도는 통계적으로 유의하게 증진되어 긍정적인 효과를 확인할 수 있었다. 병력 유무에 따른 체력측정 변화를 살펴본 결과 악력 및 제자리높이뛰기 증가 정도가 통계적으로 유의한 차이가 있었으며, 병력이 있는 사람들이 병력이 없는 사람들에 비해 증진 효과가 더 높게 나타났다. 본 연구에서는 단기형 프로그램 효과검증에서 벗어나 6박7일 장기체류 형태의 산림치유 효과성을 확인한 것에 그 의의가 있다.

• 한국치위생학회지
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• 제17권6호
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• pp.1025-1035
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• 2017

Objectives: The purpose of this study is to develop a survey instrument to assess intention to stay for dental hygienists based on validity and reliability. Methods: A survey was conducted targeting 317 dental hygienists in dental clinics. The data was used for the analysis of the study, using PASW Statistics 20.0 and IBM SPSS AMOS 18.0. Results: The preliminary instrument includes 44 item. 22 items were excluded by variable analysis. 17 final items was selected by exploratory factor analysis (EFA). The confirmatory factor analysis (CFA) was composed of four elements, 'organization fit', 'interpersonal relationship', 'identity', and 'job connectivity'. Conclusions: The validity and reliability of measurement tool for dental hygienist's intention to stay was proved. It could be used to help dental hygienist's long-term employment.

• 지역연구
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• 제39권4호
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• pp.111-125
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• 2023

중국의 급속한 경제성장과 가속화된 도시화에 따라 노동력의 이동성이 증가하였으며, 이에 따라 이주자의 거주지 선택과 거주 의도는 중국의 경제와 사회에 중요한 영향을 미치게 되었다. 본 연구는 대기오염이 도시간 이동한 사람들이 장기적으로 도시에 머무르려 하는지에 어떤 영향을 주는지 분석한다. 중국 도시간 이동한 사람들에 대한 서베이 자료와 도시 수준의 PM2.5로 대표되는 대기오염자료를 매칭함으로써, 회귀분석을 통해서 도시의 대기질을 좋은 곳으로 이동한 사람들은 해당 도시에 더 오래 남으려는 유인을 가지고 있음을 알 수 있다. 본 연구결과를 통해서 대기질의 유지가 도시의 인구를 지속적으로 유지하는데 중요한 변수임을 알 수 있다.

• 보건행정학회지
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• 제11권3호
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• pp.31-45
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• 2001

With an economic development and epidemiologic transition, the burden of disease due to chronic diseases and accidents is increasing. However, in most of developing countries, long-term care facilities are not available, therefore acute care facilities should provide both acute and long-term care services. It is also true in Korea. The demand for long-term care services needs to be estimated to establish the adequate supply system of health resources. This article introduces the reclassification methodology of inpatients' healthcare utilization to acute and long-term care services. All discharged patients from hospitals for one month were analyzed. The distribution of inpatients' hospital days were fitted to Chi-squared distribution by ICD disease categories, and they were grouped in five clusters. For each cluster, the lower and upper limit of classification criteria to acute and long-term care services were chosen. Summarizing all hospital days corresponding to acute and long-term care respectively, 24 to 28 percent of inpatient services fumed out to be long-term care services. The study results are consistent with those of the existing studies. They can be used practically in the allocation of long-term care resources.

• 한국의료질향상학회지
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• 제2권2호
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• pp.112-129
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• 1996

Background : A small number of high cost patients usually spend a larger proportion of scarce health resources. Aged, long-term care and readmitted patients usually belong to these high cost patient group. Among others, long length of stay and readmission can be reduced by checking its cause, and these are the areas needed most of quality improvement activity. Characteristics of high cost medical users between health insurance program and medical assistance program were reviewed. Methods : The inpatient claims of health insurance and medical assistance program were analyzed. Patients were divided by 6 groups; long-term, mid-term, short-term, readmitted, cancer and aged. We defined high cost patients as those who had spent one and half million won and over per 6 months. Characteristics of high cost patients for each group were reviewed. Results : medical assistance patients used much more resources than the insured members in the average hospital cost per case but less in daily hospital cost. The former had a longer length of stay and had much heavier diseases. Major diseases of both group were cancer, diseases of circulatory system and chronic degenerative diseases. Gallstone and schizophrenia were more in the insured program. However, pulmonary tuberculosis, asthma were more common among the medical assistance patients. Early readmission before 2 weeks were 28-30% of the total readmission. Readmission rate in the malignat neoplasm and renal failure were 80% and more. Q.A program should be installed to prevent unnecessary readmissions. Conclusion : Almost 30% of early readmissions and admissions due to complications and long length of stay should be reviewed carefully to keep cost down and to enhance the quality of hospital care.