Instructor factors associated with medical students’ lecture evaluation: a longitudinal analysis

Jeongbae Rhie,Yoo-Mi Chae,Seok Gun Park,Jae-hyun Kim,Hong Ja Kim 한국의학교육학회 2023 Korean journal of medical education Vol.35 No.2

Purpose: This study identified factors that affect lecture evaluation by analyzing sophomores from Dankook University, examining each cluster’s characteristics, and comparing differences among trajectories. Methods: This study identified factors that affect lecture evaluation by analyzing sophomores from Dankook University, examining each cluster’s characteristics, and comparing differences among trajectories. Results: The lecture evaluation score decreased as the teaching hours per instructor in a year increased by an hour, and the number of instructors per lecture increased by one individual. During trajectory analysis, the first trajectory had lower lecture evaluation scores overall but relatively high appropriateness of the textbook and punctuality of class, whereas the second trajectory had higher lecture evaluation scores overall for all four items. Conclusion: The two trajectories showed differences in teaching methods (understanding of lecture content and usefulness of the lecture) rather than in external factors (appropriateness of the textbook and punctuality of class). Therefore, to improve lecture satisfaction, enhancing instructors’ instructional competencies through lectures and adjusting the teaching hours by assigning an adequate number of instructors per lecture are recommended.

원예활동 프로그램이 제조업 사무직 종사자의 심박변이도에 미치는 영향

이정배(Jeongbae Rhie),채유미(Yoo-Mi Chae),이숙(Sook Lee) 한국원예학회 2017 원예과학기술지 Vol.35 No.6

본 연구는 제조업 사무직 종사자의 원예활동 프로그램이 심박변이도(heart rate variability, HRV)에 미치는 영향을 분석하고자 실시하였다. 자동차 제조업에 근무하는 사무직 근로자를 연구 대상으로 하여 40명을 편의 추출한 후, 실험군 15명과 대조군 25명으로 임의 배정하였다. 8회기의 원예활동 프로그램 시행 전 및 후에 실험군과 대조군을 대상으로 식물에 대한 태도 및 HRV 변화를 측정하였고, 대상자의 나이, 결혼상태, 거주형태, 직급, 월급, 근무시간, 음주, 흡연, 운동을 보정하여 다중회귀 분석을 실시하였다. 분석 결과, 식물에 대한 태도는 실험군과 대조군 간에 통계적으로 유의한 변화가 없었으나, HRV 지표 중 하나인 SDNN(standard deviation of NN interval), VLF(very low frequency) 값이 대조군에 비해서 통계적 유의하게 증가하였다. SDNN은 자율신경계에 부조화가 있을 때 감소하고, VLF값은 레닌-안지오텐신계와 관련이 있고, 스트레스 증가시 감소한다. 때문에 이런 결과는 원예활동 프로그램이 사무직 종사자의 스트레스 관리에 유용함을 의미한다. This study was conducted to analyze the effects of a horticultural activity program on heart rate variability (HRV) in white-collar workers. The subjects enrolled in the program all worked in automotive manufacturing. Forty white-collar workers were randomly selected; 15 workers were assigned to the case group and 25 workers were assigned to the control group. The workers’ attitude toward plants and their HRV was measured before and after an 8-session horticultural activity program. Multivariate regression analysis was performed, adjusting for factors such as age, marital status, house type, job grade, monthly income, work time, drinking, smoking habit, and level of exercise. There was no statistically significant change in the worker’s attitude toward plants. However, standard deviation of NN interval (SDNN), very low frequency (VLF) values of HRV in the case group were significantly increased compared to the control group. SDNN decreases when there is discordance in the autonomic nervous system, and the VLF value isrelated to the renin-angiotensin system. These values decrease with increasing stress.

Current Situation and Issue of Industrial Accident Compensation Insurance

김인아,Jeongbae Rhie,Jo-Duk Yoon,김진수,원종욱 대한의학회 2012 Journal of Korean medical science Vol.27 No.-

Industrial Accident Compensation Insurance (IACI) has a history of about 50 yr, and is the oldest social insurance system in Korea. After more than 20 times of revision improvements in benefits, its contents and claim systems have been upgraded. It became the protector of injured workers and their families, and at the same time became the system which could cope with both financial burden of employers and their responsibilities. However, there are some issues to be reformed to upgrade the IACI: 1) the problems in the approval system of occupational diseases, 2) quality improvement of workers‘ compensation medical care,3) vocational rehabilitation and return to work, 4) workers‘ compensation premiums and out-of-pocket money of injured workers, 5) issues in application of IACI. Growth of IACI cannot be achieved by an effort of an individual. Efforts by workers, owners, and government, in addition to physicians and welfare professionals toward the same goal are required for the next level improvement of IACI.

국내 저온용 집열기의 열성능 특성

김정배(Kim Jeongbae),이순명(Rhie Soon-Myeong),윤응상(Yoon Eung-Sang),이진국(Lee Jin-Kook),주문창(Joo Moon-Chang),백남춘(Baek Nam-Choon) 한국태양에너지학회 2008 한국태양에너지학회 학술대회논문집 Vol.- No.-

This study shows the results on thermal performance test with domestic solar collector for low-temperature applications using KS, then reveals the efficiency difference between KS and EN standard. Using the test results, this study presents the status of thermal performance with domestic solar collector including flat-plate, single evacuated, and double evacuated (with mirror or Ur-tube) solar collector.

The relevant factors of work-related fatigue for occupational vibration-exposed employees

YongDuk Ahn,Jeongbae Rhie,Min-Gi Kim 대한직업환경의학회 2022 대한직업환경의학회지 Vol.34 No.-

Background: To date, little is known about the effects of factors linked to work-related fatigue on vibration-exposed workers. Thus, the purpose of this study was (1) to assess the effects of vibration exposure time per week and work-related fatigue on workers and (2) to identify factors associated with work-related fatigue caused by long-term exposure to occupational vibration. Methods: This study used data collected from the 5th Korean Working Conditions Survey. A total of 34,820 non-vibration-exposed and 10,776 vibration-exposed employees were selected from the data. The χ2 and multiple logistic regression were used to determine the effect of vibration exposure time per week and the effects of factors of work-related fatigue on workers. Results: The prevalence of work-related fatigue in vibration-exposed workers (30.5%) was higher than that of non-exposed workers (15.9%). The prevalence of work-related fatigue was higher for female and workers with depression, anxiety, and shift work, and those with authority to control their work pace had statistically significantly higher odds than those who did not. The employees who had the authority to control their order of work (odds ratio [OR]: 0.88; 95% confidence interval [CI]: 0.81–0.95) and method of work (OR: 0.90; 95% CI: 0.82–0.98) had statistically significantly lower odds than those who did not. The OR of workrelated fatigue symptoms was highest among employees whose vibration exposure time per week were 30.0%–40.0% (OR: 2.36; 95% CI: 1.96–2.83). Lower OR was observed as vibration exposure time per week decreased. Conclusions: The results of the present study suggest an association between occupational vibration and work-related fatigue and longer vibration exposure time per week, causing an increased prevalence of work-related fatigue symptoms. Measures to protect workers exposed to occupational vibration from work-related fatigue must be taken.

The relationship between emotional labor status and workplace violence among toll collectors

Yosub Joo,Jeongbae Rhie 대한직업환경의학회 2017 대한직업환경의학회지 Vol.29 No.-

Background: This study aimed to identify the emotional labor and workplace violence status among toll collectors by assessing and comparing the same with that in workers in other service occupation. It also aimed to analyze the relationship between emotional labor and workplace violence. Methods: This study examined emotional labor and workplace violence status in 264 female toll collectors from August 20 to September 4, 2015. The emotional labor was assessed using the Korean Emotional Labor Scale (K-ELS), and a questionnaire was used to examine the presence or absence, and type and frequency of workplace violence experienced by the subjects. A linear regression analysis was also performed to analyze the relationship between workplace violence and emotional labor. Results: The scores on “emotional demanding and regulation (p < 0.001),” “overload and conflict in customer service (p = 0.005),” “emotional disharmony and hurt (p < 0.001),” and “organizational surveillance and monitoring (p < 0.001)” among the sub-categories of emotional labor were significantly high and indicated “at-risk” levels of emotional labor in those who experienced workplace violence, whereas they were “normal” of emotional labor in those who did not. Even after being adjusted in the linear regression analysis, the emotional labor scores for the above 4 sub-categories were still significantly high in those who experienced workplace violence. On comparing the present scores with 13 other service occupations, it was found that toll collectors had the highest level in “emotional disharmony and hurt,” “organizational surveillance and monitoring,” and “organizational supportive and protective system”. Conclusions: This study found that the toll collectors engaged in a high level of emotional labor. Additionally, there was a significant relationship between emotional labor and the experience of workplace violence among the toll collectors.

Impact of Long Working Hours and Shift Work on Unmet Health Care Need Among Korean Workers

Lee, Hye-Eun,Rhie, Jeongbae Occupational Safety and Health Research Institute 2022 Safety and health at work Vol.13 No.1

Background: This study aimed to identify work-related risk factors, including long working hours and night/shift work, for unmet health care need using data of a representative panel of Korean adults. Methods: Associations between work-related factors and unmet health care need were analyzed using data of 3,440 participants (10,320 observations) from the 2011-2013 Korean Health Panel Study. A generalized estimating equation was used for the analysis of repeated measures. Results: The prevalence of unmet health care was 16.6%. After adjusting sex, age, socioeconomic status, work characteristics, and working more than 60 hours per week (odds ratio [OR]: 1.43, 95% confidence interval [CI]: 1.23-1.65) or 50-59 hours per week (OR: 1.26, 95% CI: 1.08-1.46) instead of 40-49 hours per week and night/shift work (OR: 1.27, 95% CI: 1.06-1.51) were associated with unmet health care need. Conclusion: Long working hours and night/shift work are risk factors for unmet health care need among the Korean working population.

PET, PET/CT 방사선 종사자의 피폭 관련요인

박훈희(Hoon-Hee Park),이정배(Jeongbae Rhie),정필균(PilkyunJung),이종두(Jong Doo Lee),원종욱(Jong Uk Won),노재훈(Jaehoon Roh) 대한직업환경의학회 2012 대한직업환경의학회지 Vol.24 No.1

뇌·심혈관질환 예방을 위한 사업장 지원 프로그램의 단기효과 분석

곽우석,원종욱,이정배,이명숙,강은주,노재훈 大韓産業醫學會 2009 대한직업환경의학회지 Vol.21 No.1

목적 뇌 심혈관질환은 주요한 사망원인이며 우리나라 산업재해 보상에 있어 중요 부분을 차지하고 있다 따라서 한국산업안전보건공단은 2000년도부터 지역 산업보건기관을 통해 많은 사업장에 뇌 심혈관질환 예방 프로그램을 지원해왔다 본 연구는 이 프로그램이 근로자의 뇌 심혈관질환 발병위험도 개선에 미치는 단기영향을 평가하고자 수행되었다 방법 2007년도 집중관리 프로그램 대상자 중 전후 발병위험도 평가가 가능했던 5,902명(53.3%)을 대상으로 혈압 콜레스테롤 비만도 및 발병위험도를 전후 비교하였다 발병위험도 평가는 KOSHA CODE H-11-2004 지침을 사용하였다 결과 평균 수축기 및 이완기 혈압이 4.9 mmHg 3.1mmHg 감소하였으며 총콜레스테롤과 비만도(BMI)는 각각 8.4 g/dL 0.1 kg/㎡ 감소하였다 흡연율은 6.0% 감소하였으며 규칙적인 운동 시행률은 23.1% 증가하였다 전체적인 발병위험도 개선율은 49.1%였다 결론 국가 지원의 뇌 심혈관질환 예방 프로그램은 단기적으로 좋은 성과를 나타냈다 향후 연구에서는 사업장 단위의 장기적인 영향과 비용-효과에 대한 분석이 이루어질 필요가 있다 Objectives Cardiovascular disease is the leading cause of death and a major source of workers' Compensation claims in Korea Since 2000 the Korea Occupational Safety and Health Agency (KOSHA), working through local occupational health institutions has supported cardiovascular disease prevention programs at a number of companies in Korea The purpose of this study was to assess the short term effects of this effort Methods A total of 11,077 workers at risk were enrolled in the workplace cardiovascular disease prevention program and 5,902 workers (53.3%) completed the 1-year course during 2007 The program consisted of a medical checkup and health counseling for the workers by occupational health nurses The guidelines for this prevention program were adopted from KOSHA Code H-11-2004 To determine the program's effectiveness the workers risks for cardiovascular disease were assessed before and one year after completion of the program Results The intervention led to significant reductions in the mean systolic and diastolic blood pressures of 4.9 mmHg and 3.1 mmHg respectively Mean total cholesterol and BMI were also reduced significantly by 8.4 g/dl and 0.1 kg/㎡ The rate of smoking was decreased by 6.0% and the percentage of workers engaging in regular exercise was increased by 23.1% of the 3,530 workers with the low risk and above the overall cardiovascular risk was improved in 1,734 (49.1 %) of them Conclusions The cardiovascular disease prevention program supported by the Korea Occupational Safety and Health Agency reduces cardiovascular diseases risks among workers and may improve the health status of workers in Korea

The relationship between spontaneous abortion and female workers in the semiconductor industry

Heechan Kim,Ho-Jang Kwon,Jeongbae Rhie,Sinye Lim,Yun-Dan Kang,Sang-Yong Eom,Hyungryul Lim,Jun-Pyo Myong,Sangchul Roh 대한직업환경의학회 2017 대한직업환경의학회지 Vol.29 No.-

Background: This study investigated the relationship between job type and the risk for spontaneous abortion to assess the reproductive toxicity of female workers in the semiconductor industry. Methods: A questionnaire survey was administered to current female workers of two semiconductor manufacturing plants in Korea. We included female workers who became pregnant at least 6 months after the start of their employment with the company. The pregnancy outcomes of 2,242 female workers who experienced 4,037 pregnancies were investigated. Personnel records were used to assign the subjects to one of three groups: fabrication process workers, packaging process workers, and clerical workers. To adjust for within-person correlations between pregnancies, a generalized estimating equation was used. The logistic regression analysis was limited to the first pregnancy after joining the company to satisfy the assumption of independence among pregnancies. Moreover, we stratified the analysis by time period (pregnancy in the years prior to 2008 vs. after 2009) to reflect differences in occupational exposure based on semiconductor production periods. Results: The risk for spontaneous abortion in female semiconductor workers was not significantly higher for fabrication and packaging process workers than for clerical workers. However, when we stratified by time period, the odds ratio for spontaneous abortion was significantly higher for packaging process workers who became pregnant prior to 2008 when compared with clerical workers (odds ratio: 2.21; 95% confidence interval: 1.01–4.81). Conclusions: When examining the pregnancies of female semiconductor workers that occurred prior to 2008, packaging process workers showed a significantly higher risk for spontaneous abortions than did clerical workers. The two semiconductor production periods in our study (prior to 2008 vs. after 2009) had different automated processes, chemical exposure levels, and working environments. Thus, the conditions prior to 2008 may have increased the risk for spontaneous abortions in packaging process workers in the semiconductor industry.