• Journal of applied mathematics & informatics
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• 제31권1_2호
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• pp.1-25
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• 2013

In this paper we have developed a mathematical model of alcohol abuse. It consists of four compartments corresponding to four population classes, namely, moderate and occasional drinkers, heavy drinkers, drinkers in treatment and temporarily recovered class. Basic reproduction number $R_0$ has been determined. Sensitivity analysis of $R_0$ identifies ${\beta}_1$, the transmission coefficient from moderate and occasional drinker to heavy drinker, as the most useful parameter to target for the reduction of $R_0$. The model is locally asymptotically stable at disease free or problem free equilibrium (DFE) $E_0$ when $R_0$ < 1. It is found that, when $R_0$ = 1, a backward bifurcation can occur and when $R_0$ > 1, the endemic equilibrium $E^*$ becomes stable. Further analysis gives the global asymptotic stability of DFE. Our aim of this analysis is to identify the parameters of interest for further study with a view for informing and assisting policy-makers in targeting prevention and treatment resources for maximum effectiveness.

• 한국보건간호학회지
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• 제15권1호
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• pp.73-82
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• 2001

This study was conducted from Nov. 15 to Dec. 20, 1999, covering 630 fourth, fifth. and sixth graders in 5 elementary schools, in Seoul, in order to provide basic data for developing problematic drinking prevention program. The results of the study were as follows : 1. Among the students under inquiry, $55.4\%$ answered they had the experience of drinking. 2. Forth grade was the most frequent year students start drinking$(24.7\%)$. Most of them had their first drinking experience at the family party, a gala day or religious service and accompanied with parents. Beer was the most frequently drank and curiosity was the most common reason to start drinking. 3. As for the drinking experience in terms of general characteristics, the male students were significantly higher in the rate of drinking experience than that of female. 4. As for the drinking experience in terms of environmental characteristics. the students whose parents were drinkers significantly higher in the rate of drinking experience than that of non-drinkers. 5. The intention of the students in future drinking was significantly lower in the non-drinkers with $13.4\%$ than that of drinking experience students with $20.7\%$.

• Journal of applied mathematics & informatics
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• 제31권5_6호
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• pp.747-767
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• 2013

In this paper we have constructed a mathematical model of alcohol abuse which consists of four compartments corresponding to four population classes, namely, moderate and occasional drinkers, heavy drinkers, drinkers in treatment and temporarily recovered class. Basic reproduction number $R_0$ has been determined and sensitivity analysis of $R_0$ indicates that ${\beta}1$ (the transmission coefficient from moderate and occasional drinker to heavy drinker) is the most useful parameter for preventing drinking habit. Stability analysis of the model is made using the basic reproduction number. The model is locally asymptotically stable at disease free or problem free equilibrium (DFE) $E_0$ when $R_0&lt;1$. It is found that, when $R_0=1$, a backward bifurcation can occur and when $R_0&gt;1$, the endemic equilibrium $E^*$ becomes stable. Further analysis gives the global asymptotic stability of DFE under some conditions. Our important analytical findings are illustrated through computer simulation. Epidemiological implications of our analytical findings are addressed critically.

• 한국생활과학회지
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• 제15권6호
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• pp.891-903
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• 2006

The purpose of this study was to identify relationships among peer pressure, parental supervision, alcohol expectancy and adolescent drinking behaviors between year 2001 and 2006. Three hundred high school students were given questionnaires each year on their drinking behavior. Findings of this study were; first, a adolescent drinking and the amount drinking has increased during the years. adolescent drinker ratio as adolescent drinkers were 91.3% in 2006 compared to 75.9% in 2001. The average drinking amounts were 40.82 units in 2006 and 24.9 units in 2001. Second, differences were found in adolescent drinking behaviors such as the amount of alcohol consumption, drinking frequency, & problem drinker ratio by gender, and grade. Male students over female students. Third, peer pressure, parental supervision, alcohol expectancy showed significant impacts on adolescent drinking behaviors through 2001 and 2006. Students who lack parental supervision with much higher drinking-related peer pressure along with a higher level of positive alcohol expectancy were observed to be heavy drinkers and problem drinkers. Especially, students who showed belief in alcohol's tension-relieving function and sociability function tended to over-drink, drink more frequently and as a result, experienced more drinking problems. Intervention strategies were discussed.

• 대한한방내과학회지
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• 제28권1호
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• pp.115-123
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• 2007

Objectives : To investigate the correlations among alcohol consumption, alcoholic liver disorders, physical symptoms, and behaviors in heavy drinkers. Methods : 53 males who self-realized their severe alcohol consumption were enrolled in this study. 10 answers for a questionnaire, serum parameter, sonographic finding and body mass index were attained. The correlations between them were analyzed using Pearson's correlation and Student's t-test. Results : The average consumption of alcohol in these subjects was 2.5-fold over social drinkers. The incidence of alcoholic hepatitis was around 30%, while fatty liver 73%, and abnormal GGT 77%, respectively. No specific correlation between average volume of daily alcoholic consumption and alcohol-related hepatic parameters was shown in this study, but correlative tendency between fatty liver and body mass index was exhibited. Conclusions : This study may indicate that alcoholic liver injuries are caused by not just volume of alcohol consumed but more mixed factors including inherited genetic components, body fat mass, foods and other physical or emotional stress.

• Journal of Preventive Medicine and Public Health
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• 제29권1호
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• pp.113-131
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• 1996

This study was carried out to evaluate the relations among workers' general characteristics, work-related behaviors and health related behaviors in a steel industry with 1,134 workers in Pohang. The results were as follows; 1. The mean age of workers was 50 years old and working duration was 15 years and over. Most of them were married(94.5%) and had studied beyond high school (53.0%). They performed three shift work and most of them(63.0%) had experienced industial accidents. The frequency of noise and dust exposure was defined by a minimum of 6 hours per day, and workers complained about noise exposure(62.9%) and dust(55.6%). There were current smokers(67.7%), current drinkers(74.3%) and current exercising workers(32.3%) in the industry. The number of cigarette consumption in current drinkers was significantly high $(13.6{\pm}8.4\;pieces/day)$ and the alcohol consumption in current smokers was significantly high$(104.5{\pm}113.5\;g/wk)$. And the number of cigarette consumption of exercisers was significantly low and the alcohol consumption of exercisers was higher than non-exercisers. 3. The ratio of current smokers on frequent noise in exposed workers versus non-exposed workers was not significantly high but the current drinkers in frequent noise and dust exposed workers was significantly higher than non-exposed. 4. The normal levels of SGOT workers in non-smokers were significantly higher than in current smokers, and the normal levels of LFT (SGOT, SGPT, $\gamma-GTP$ workers in nondrinkers were significantly high. The normal levels of SBP and DBP workers in current smokers were not significantly high but were significantly high in non-drinkers. 5. The ratio of current smokers in voters unsatisfied with their job and working condition was higher than non-smokers, but the ratio of current drinkers in workers satisfied with their job and working condition were higher. 6. The significant factors for SGOT and $\gamma-GTP$ were age, the drinking amount and BMI. But the only significant factor for r-GTP was BMI. The significant factors for DBP were age, the alcohol consumption and BMI. And the significant factors for SBP were age, BMI.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제5권1호
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• pp.172-183
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• 1994

본 연구는 문제성 음주자의 청소년 자녀들에게 나타나는 부적응 특성들을 알아보기 위하여 일반고등학교에 재학 중인 남녀 학생들로 하여금 부모의 음주문제를 보고하도록 한 후 이를 근거로 문제성 음주자의 청소년 자녀 집단(남 126명, 여 210)과 부모가 음주 문제가 없는 비교집단(남 190, 여 222)을 구성하여 두 집단의 가족 환경 및 부모-자녀 관계, 우울, 음주 기대, 음주 개입 및 비행을 비교하였다. 그 결과 문제성 음주자 자녀 집단은 비교 집단에 비해 부모로부터 보살핌을 덜 받았다고 느꼈으나, 부모의 과보호는 더 받았다고 보고하였다. 또한 문제성 음주자 자녀 집단은 비교 집단에 비하여 우울과 불안 수준이 높았으며 음주 기대가 높고 음주와 비행에 더 많이 개입되어 있었다. 위의 여러 변인에서 성별에 따른 차이가 나타났지만 성별과 부모의 문제성 음주와의 상호작용은 보이지 않았으며, 이는 부모의 문제성 음주가 남녀 청소년 모두에게 비슷한 영향을 미침을 시사한다. 청소년들의 우울, 불안, 음주 기대, 음주 개입 그리고 비행에 영향을 미치는 위험 요인을 알아보기 위해 남녀 집단의 자료에 각각 중다 회귀 분석을 실시한 결과, 우울 및 불안 등 청소년의 정서문제는 부모의 음주보다는 부모와의 관계를 어떻게 지각하고 있는가에 의해 더 많은 영향을 받는 반면, 음주 문제와 비행은 부모와의 관계보다는 부모의 음주 문제 정도 및 이들 불안 ${\cdot}$ 우울 등의 정서상태와 더 밀접하게 관련되어 있었다.

• 대한지역사회영양학회지
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• 제7권4호
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• pp.527-538
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• 2002

Body antioxidant status is an important factor in the prevention of many chronic diseases caused by oxidative stress, especially in the elderly and is affected by health-related habits, such as smoking, drinking and regular physical activity. The aim of this study was to investigate the relationship between these health-related habits and plasma antioxidant status in the elderly. Plasma antioxidant status was examined by determining plasma levels of antioxidant vitamins (vitamin C, A, E, $\beta$ -carotene), total antioxidant status (TAS) and thiobarbituric acid-reactive substance (TBARS) . The subjects included 225 elderly persons aged over 60 yews (63 males, 162 females) living in the Ulsan area. They were interviewed to collect data on their general characteristics and health behaviors such as smoking, exercise and alcohol consumption by means of questionnaires. Their dietary intakes were obtained by means of semi-quantitative food frequency questionnaires (FFQ) The study population was divided into two or three groups according to their smoking, drinking, and exercise status. The ratio of smoker, drinker and exerciser was 16.7%, 31.0% and 44.2% respectively. The dietary antioxidant vitamin intakes were not significantly different among groups of smoking and drinking status, but tended to be higher in non-smokers and non-drinkers than in smokers and drinkers. Plasma vitamin C and $\beta$ -carotene levels were significantly higher in non-smokers, but Plasma vitamin A and TBARS levels were significantly lower in non-smokers than in smokers. Plasma TAS was not significantly different among the smoking groups, but showed a tendency to decrease with an increase in the number of packyear. Plasma vitamin C and $\beta$ -carotene levels of the non-drinkers were higher than those of drinkers and past-drinkers, but plasma vitamin A, C, E, TAS and TBARS showed no difference among the groups of drinker. All vitamin intakes of the exercisers were slightly higher than those of the non-exercisers, but vitamin C intake was significantly higher in female exercisers than in non-exercisers. Plasma $\beta$ -carotene levels were significantly higher in male exercisers and plasma vitamin A, C, E, TAS and TBARS levels tended to be higher in exercisers than in non-exercisers. These results suggested that change to non-smoker, modulation of alcohol consumption and regular exercise could enhance antioxidant defences against reactive oxygen species and might increase the likelihood of a healthier life span.

• 한국산학기술학회논문지
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• 제17권10호
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• pp.509-519
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• 2016

본 연구는 음주노인의 종단자료를 사용하여 주관적 건강인식의 변화가 우울 변화 궤적에 미치는 영향을 분석한 서술조사 연구이다. 본 연구는 고령화연구패널조사 1차(2006), 2차(2008), 3차(2010), 4차(2012) 자료를 모두 통합하여 균형패널를 구축하였으며, 최종 분석대상자는 네 시점 모두에서 응답한 음주노인 총 543명의 자료를 분석하였다. 연구방법으로는 기술통계와 변인들 간의 관계성을 검증하기 위하여 잠재성장모형을 이용하였다. 그 결과 첫째, 주관적 건강인식의 초기값이 우울수준 초기값에 미치는 영향이 부적(-)인 관계로 통계적으로 유의미하였다. 둘째, 한 주관적 건강인식 초기값이 우울의 변화율에 미치는 영향은 정적(+)인 관계가 있는 것으로 나타났으며, 초기 주관적 건강인식이 높은 음주노인은 우울 수준 변화율도 높다는 것을 의미하나 통계적으로 유의미하지 않았다. 셋째, 주관적 건강인식 변화율이 우울 변화율에 미치는 영향은 부적(-)인 관계가 있는 것으로 나타나 통계적으로 유미한 결과를 보였다. 즉 주관적 건강인식 변화율이 높을수록 우울의 변화율이 낮은 것으로 나타나, 주관적 건강인식의 증가속도가 빨라지면 음주노인의 우울은 증가속도가 느려진다고 할 수 있다. 이상을 토대로 지역사회에서 노인의 음주예방과 건강을 위한 프로그램을 개발하여 우울증과 자살을 예방하는 실효성 있는 정책과 시행이 요구된다.

• 한국학교보건학회지
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• 제32권2호
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• pp.88-95
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• 2019

Purpose: The prevalence of binge drinking has increased among Korean adolescents in recent years. The purpose of this study was to determine the influencing factors of adolescent binge drinking. Methods: This was a secondary analysis of data from the 14th Korea Youth Risk Behavior Survey. For the present analysis, 5,203 binge drinkers (girls who drank 3 or more glasses of soju and boys who drank 5 or more in average on one occasion in the last 30 days) and 4,464 non-binge drinkers were selected. Results: Compared with the adolescents who had no experience buying alcoholic beverages, the adolescents who responded that it was easy or uneasy to buy alcoholic drinks were more likely to be a binge drinker. Also, compared with never smokers, ex-smokers and current smokers were more likely to be a binge drinker. Binge drinking was positively associated with skipping breakfast, subjective health, and feelings of sadness or hopeless. Conclusion: The findings of this study may be useful in developing binge drinking prevention programs for adolescents.