• 자원ㆍ환경경제연구
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• 제15권2호
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• pp.147-175
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• 2006

본 연구는 환경오염물질로부터의 건강위험에 대한 소비자들의 반응을 분석하는 데 중요한 세 가지 요소인 위험인지(perceptions), 자기보호행동(behavior) 그리고 가치평가(valuation)를 체계적으로 분석하고자 시도하였다. 소비자들의 수돗물 음용과 관련한 건강 위해 가능성에 대한 염려와 우려 수준에 영향을 미치는 요인들을 분석하고, 나아가서 건강상 안전한 음용수에 대한 소비자들의 선호를, 정책적으로 논란이 되고 있는 유해물질인 비소를 사례로 조건부행동접근법(contingent behavior method)을 적용하여 측정하였다. 전라북도 지방에 거주하는 500명의 소비자들을 대상으로 한 실증분석의 결과는, 대부분의 응답자들이 수돗물에 잔류된 유해물질로 인한 건강위험에 대해 상당히 우려하고 있었으며, 이러한 우려와 염려의 심각성이 산발적이고 임의적이라기보다는 나이, 성별 그리고 가족수 등 응답자들의 인구통계학적 특성에 따라 이질적이지만 체계적으로 반응하였다. 그리고 이러한 주관적인 위험인식은 또한 안전한 음용수에 대한 구매의도에도 영향을 미쳤다. 아울러 응답자들에게 제시된 객관적 건강위험정보는 단독으로는 영향을 미치지 않았지만, 실제 위험회피행동 여부를 나타내는 변수와의 상호작용이 허용되자 안전한 음용수의 선택에 유의한 영향을 미쳤다. 물론 실제 시장구매상황에서 익숙한 가격의 차이 역시 안전한 음용수에 대한 진술된 선호를 설명하는데 매우 중요한 변수였다. 또한 가상선택에 참여하지 않은 무응답자들을 제외할 경우 표본선택편의의 가능성이 통계적으로 유의하였고, 이러한 표본선택편의는 특히 가격변수의 계수추정치에 영향을 미쳤으며, 결과적으로 건강위험 감소에 대한 지불의사 추정치에도 영향을 미치는 것으로 나타났다.

• 대한인간공학회지
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• 제29권3호
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• pp.375-382
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• 2010

The purpose of this study was to analyze the risk factors of the musculoskeletal workload of mid-old-age food preparation workers by identifying the differences in the complaints of subjective symptoms between mid-old-age housewives and mid-old-age food preparation workers. This study was carried out on a total of 83 subjects from April 2009 through July 2009: 43 food preparation workers at the catering department of general hospital A, with a high rate of mid-old-age food preparation staff, and 40 full-time housewives (40~59 years old). The analysis of the relationship between the rates of the subjective symptoms of the two groups showed that the mid-old-age food preparation workers had a 7.8-fold higher risk of developing musculoskeletal diseases than the full-time housewives. The musculoskeletal workload of the mid-old-age food preparation workers included repetitive motions, uncomfortable postures, and heavy lifting. It is hoped that this study will help provide mid-old-age people with opportunities for appropriate economic activity and labor and will help improve their work postures and methods as well as their environmental-risk factors.

• 한국보건간호학회지
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• 제34권3호
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• pp.416-428
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• 2020

Purpose: This study identified socioeconomic factors affecting the health status of Korean adults. Methods: Secondary data from 12,921 adults aged 19 to 64 old in the 7th Korean National Health and Nutrition Examination Survey were used. The participants' health status was measured using the indicators that included health behaviors (smoking, high-risk drinking, strength exercise, and aerobic physical activity) and health outcomes (metabolic syndrome, and subjective health status). Results: For all health behaviors and health outcomes, gender, age, educational level, and income were common affecting factors. Regarding health behaviors, the employment status was related to smoking, high-risk drinking, strength exercise, and aerobic physical activity. The marital status was related to high-risk drinking, strength exercise, and aerobic physical activity. The household type was related to smoking. The residential area was related to smoking, high-risk drinking, and aerobic physical activity. For health outcomes, the household type was related to obesity, and subjective health status; residential area was related to obesity. Conclusion: This study presented basic data for assessing the differences in health status. The characteristics of the affecting factors to health status should be considered, depending on the health behaviors and health outcomes.

• 보건의료산업학회지
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• 제11권4호
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• pp.133-144
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• 2017

Objectives : The purpose of this study was to identify factors affecting the subjective happiness of adolescents in Busan using data from the "12th Online Survey on Youth Health Behaviors, 2016." It intended to provide basic information for the development of intervention programs that can improve the subjective happiness of the youth. Methods : Data on 3,979 adolescents residing in Busan were drawn and statistically examined using frequency analysis, a t-test, an ANOVA, and a multiple regression analysis. SPSS 24.0 was used for all analyses. Results : Subjective happiness showed statistically significant differences depending on the factors of health equity like emotional support, gender, school level, financial state, academic performance, type of residence, and parents' educational level, and on the factors of health status, like subjective health state, depression, sleep and stress. Conclusions : The results of this study suggest that a variety of intervention programs on health status factors need to be developed, and implemented to improve the subjective happiness of adolescents in Busan.

• 한국학교보건학회지
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• 제36권3호
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• pp.113-125
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• 2023

Purpose: The purpose of this study is to develop a model for predicting mental health risk among adolescents based on health behavior information by employing a hybrid machine learning method. Methods: The study analyzed data of 51,850 domestic middle and high school students from 2022 Youth Health Behavior Survey conducted by the Korea Disease Control and Prevention Agency. Firstly, mental health risk levels (stress perception, suicidal thoughts, suicide attempts, suicide plans, experiences of sadness and despair, loneliness, and generalized anxiety disorder) were classified using the k-mean unsupervised learning technique. Secondly, demographic factors (family economic status, gender, age), academic performance, physical health (body mass index, moderate-intensity exercise, subjective health perception, oral health perception), daily life habits (sleep time, wake-up time, smartphone use time, difficulty recovering from fatigue), eating habits (consumption of high-caffeine drinks, sweet drinks, late-night snacks), violence victimization, and deviance (drinking, smoking experience) data were input to develop a random forest model predicting mental health risk, using logistic and XGBoosting. The model and its prediction performance were compared. Results: First, the subjects were classified into two mental health groups using k-mean unsupervised learning, with the high mental health risk group constituting 26.45% of the total sample (13,712 adolescents). This mental health risk group included most of the adolescents who had made suicide plans (95.1%) or attempted suicide (96.7%). Second, the predictive performance of the random forest model for classifying mental health risk groups significantly outperformed that of the reference model (AUC=.94). Predictors of high importance were 'difficulty recovering from daytime fatigue' and 'subjective health perception'. Conclusion: Based on an understanding of adolescent health behavior information, it is possible to predict the mental health risk levels of adolescents and make interventions in advance.

• 한국가정과교육학회지
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• 제32권4호
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• pp.67-79
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• 2020

본 연구 목적은 청소년 자살시도자의 양상을 분석하고, 개인심리(주관적 우울감, 주관적 스트레스), 건강상태(주관적 건강인식, BMI), 주관적 학업성적이 청소년 자살시도 유형(계획적 자살시도자와 충동적 자살시도자)에 미치는 영향력을 알아보았다. 이를 위해 제 15차(2019년) 청소건강행태조사 원시자료를 사용하여 위계적 로지스틱 회귀분석을 하였다. 연구결과는 다음과 같다. 첫째, 청소년 자살시도자의 양상을 살펴본 결과, 청소년 자살시도자 1,731명중 계획적 자살시도자가 1,575명(91%)으로 충동적 자살시도자 156명(9%)에 비해 월등히 높게 나타났다. 성별을 살펴보면, 여성(67.3%)이 남성(32.5%)에 비해 자살시도가 높게 나타났고, 학교유형별로 보면 중학생(62%)이 고등학생(38%)에 비해 높은 자살시도율을 보였다. 둘째, 자살시도 유형에 유의미한 영향을 미치는 변수들은 '주관적 우울감', '주관적 스트레스', '주관적 건강인식'이었다. 우울감을 경험한 청소년의 경우 그렇지 않은 학생들에 비해 계획적 자살시도를 실행할 비율이 높게 나타났다. 스트레스를 많이 느끼는 청소년의 경우에도 계획적 자살시도자가 높은 것으로 나타났다. 주관적 건강인식의 경우 충동적 자살시도자가 계획적 자살시도자와 비교하여 1.32배 건강하다고 생각하는 것으로 나타나 건강하다고 생각하지 않은 청소년의 경우 계획적 자살시도가 높은 것으로 나타났다. 반면에 BMI, 주관적 학업성적의 경우 청소년들의 자살시도에 유의미한 영향을 미치지는 않았다. 이러한 연구결과를 기초로 가정과수업이나 창의적 체험활동에서 잠재적 청소년 자살시도 예방을 위한 방안을 제안하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.1155-1162
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• 2004

This research proposes a new risk analysis method in order to guarantee successful performance of construction projects. The proposed risk analysis methods consists of four phases. First step, AHP model can help contractors decide whether or not they bid for a project by analysing risks involved in the project. Second step, the influence diagraming, decision tree and Monte Carlo simulation are used as tools to analyze and evaluate project risks quantitatively. Third step, Monte Carlo simulation is used to assess risk for groups of activities with probabilistic branching and calendars. Finally, Fuzzy theory suggests a risk management method for construction projects, which is using subjective knowledge of an expert and linguistic value, to analyze and quantify risk. The result of study is expected to improve the accuracy of risk analysis because three factors, such as probability, impact and exposure, for estimating membership function are introduced to quantify each risk factor. Consequently, it will help contractors identify risk elements in their projects and quantify the impact of risk on project time and cost.

• 기본간호학회지
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• 제23권3호
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• pp.310-319
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• 2016

Purpose: This study was done to examine whether risk of suicidal ideation in nursing students as related to social support and ego-resilience, and whether subjective wellbeing mediated the relationships. Methods: Structural equation modeling was applied to test the model in which ego-resilience and social support from family, friends, and others were considered as exogenous variables and subjective wellbeing as a mediating variable. The participants were 285 nursing students who completed self-report measures including the Suicidal Ideation Questionnaire, the Multidimensional Scale of Perceived Social Support, the Ego-Resiliency Scale, and the Index of Wellbeing. Results: Results show that higher scores on family support and ego-resilience were positively associated with subjective wellbeing and negatively with suicidal ideation. Subjective wellbeing mediated the relationships between family support and suicidal ideation, and also ego-resilience and suicidal ideation. Among the three social supports, only family social support had both direct and indirect effects on suicidal ideation. Conclusion: Findings suggest that family support is a useful resource in the prevention of suicidal ideation in nursing students and building supportive relationship with family should be considered as the first step in suicide prevention strategies. Also enhancing ego-resilience could play an important role to reduce suicide risk through promoting well-being.

• 한국치위생학회지
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• 제17권5호
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• pp.827-840
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• 2017

Objectives: The purpose of this study was to investigate the relationship between demographic characteristics, health factors, oral health factors and subjective body shape perception of adolescents in order to provide basic data for adolescents health management. Methods: This study was analyzed using Korea Youth Risk Behavior Web-Based Survey in 2015, where 68,043 adolescents in total participated. Data were analyzed by SPSS Ver. 21.0. Multiple regression analysis was used to analyze the relationships among health factors and oral health factors related to subjective body shape perception. Results: The analysis of the factors influencing the body shape perception of male adolescents showed that they tend to be low in school performance, low in family economic level, and high school students. The worse they perceive their subjective health to be, the more they feel stress, and the less frequently they brush their teeth per day. They had bad breath. The analysis of the factors influencing the body shape perception of female adolescents showed that they tend to be low in school performance, low in family economic level, and high school students. The worse they feel their subjective health is, the more they feel unhappy, and stressful, and the less frequently they brush their teeth per day. They feel pain during chewing, and have bad breath. Conclusions: In conclusion, it is necessary to consider educational intervention in adolescent life that will make them have proper perception of their body shape for proper health management of it. To make the intervention effective, we need to consider various factors such as health factors and oral health factors.

• 지식경영연구
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• 제15권4호
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• pp.35-56
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• 2014

This study examined the effect of perceived risk, an under-explored area in the knowledge sharing literature. We proposed that employee perceptions of risk relate positively with their knowledge sharing behaviors (donating and collecting), and examined the mediating role of impression management strategies in the hypothesized relationships. We also explored the moderating effect of leader-member exchange (LMX) in the relationship between perceived risk and impression management strategies. Valid and reliable self-report and supervisory evaluation measures were collected from a sample of 251 railroad employees in safety-sensitive positions. The results indicate that perceived risk was not significantly associated with knowledge sharing, but rather the risk perception impacts were indirect through impression management strategies such as exemplification and supplication. The study also found that LMX has no moderating effect on the perceived risk and impression management strategies. In discussing these results, we present significant insights in terms of subjective risk judgment as a potential mechanism which can encourage organizational politics.