• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.581-588
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• 2017

This study was conducted to determine which factors would predict metabolic syndrome (MetS) perception and exercise by applying a machine learning classifier, or Extreme Gradient Boosting algorithm (XGBoost) from July 2014 to December 2015. Data were obtained from the Korean Community Health Survey (KCHS), representing different community-dwelling Korean adults 19 years and older, from 2009 to 2013. The dataset includes 370,430 adults. Outcomes were categorized as follows based on the perception of MetS and physical activity (PA): Stage 1 (no perception, no PA), Stage 2 (perception, no PA), and Stage 3 (perception, PA). Features common to all questionnaires for the last 5 years were selected for modeling. Overall, there were 161 features, categorical except for age and the visual analogue scale (EQ-VAS). We used the Extreme Boosting algorithm in R programming for a model to predict factors and achieved prediction accuracy in 0.735 submissions. The top 10 predictive factors in Stage 3 were: age, education level, attempt to control weight, EQ mobility, nutrition label checks, private health insurance, EQ-5D usual activities, anti-smoking advertising, EQ-VAS, education in health centers for diabetes, and dental care. In conclusion, the results showed that XGBoost can be used to identify factors influencing disease prevention and management using healthcare bigdata.

• The Journal of the Korea Contents Association
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• v.15 no.3
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• pp.280-289
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• 2015

Purpose: The purpose of the study was to investigate the difference of health behavior modification between male and female patients with cardiovascular disease; and to compare the predictors of health behavior between the male and female subjects. Methods: A comparative study design was used in the study. A total of 228 patients(male 114, female 114) with cardiovascular disease were recruited from outpatients clinics in 2 university hospitals in Korea. Data were analyzed using t-test, $X^2$, ANOVA, ANCOVA, Pearson correlation, and multiple regression with SPSS 20.0. Results: There was significant difference of health behavior between male and female patients with cardiovascular disease (F=9.45, p=0.002). The significant predictors of health behavior among male subjects were self-efficacy, perceived barriers, perceived susceptibility, medical support and autonomous motivation, accounting for 45%; the significant predictors of health behavior among female subjects were self-efficacy, medical support and autonomous motivation, accounting for 51%. Conclusions: It is suggested to take different health promotions strategies to maintain the performance of health behaviors among male and female patients with cardiovascular diseases.

• Journal of dental hygiene science
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• v.13 no.4
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• pp.418-425
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• 2013

This study was investigated in order to provide basic data for prevention of periodontal disease and maintenance through proper lifestyle by finding the relevance of periodontal health with lifestyle habits. Data were collected from total of 326 subjects in their forties and fifties by using questionnaire and examination of periodontal health status. Results were analyzed by using IBM SPSS Statistics 19.0. The smoking status were statistically significant to gingival index (p<0.01), pocket depth (p<0.001), and clinical attachment loss (p<0.001). Smoking amount per day were statistically significant to gingival index (p<0.05), pocket depth (p<0.01), and clinical attachment loss (p<0.001). Duration of smoking were statistically significant to gingival index (p<0.05), pocket depth (p<0.01), and clinical attachment loss (p<0.001). Drinking cycle were statistically significant to gingival index (p<0.05), and clinical attachment loss (p<0.05). It is investigated that smoking (p<0.05) influence on clinical attachment loss. Dental care institute needs to make patients be aware of the fact that excessive smoking and drinking affect the periodontal health status for prevention of periodontal disease and maintenance of oral health. Therefore systematic educational programs to stop smoking and drinking should be prepared.

• Proceedings of the KSCN Conference
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• 2003.11a
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• pp.1089-1090
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• 2003

본 연구는 대구ㆍ경북지역 대장직장암 환자의 일반 생활 상황과 식행동 특성을 분석 평가하여 지역민의 대장직장암 예방을 위한 영양교육에 활용할 수 있는 식생활 관련 기초 자료를 얻고자 수행되었다. 최근 경북대학교 병원에서 대장직장암 진단을 받고 입원한 수술 전후 환자 123명 (남 79명, 여 44명)을 환자군 대상으로 하였고 대장질환이 없는 정형외과 환자 등 182명(남 117명, 여 65명)을 비교군 대상으로 하였다. 대상자의 일반 특성, 식습관, 식행동 특성, 식품섭취 빈도 등의 내용을 포함한 설문지를 이용하여 개인 면담을 통하여 조사하였다. 현재 BMI와 과거 가장 높았던 체중의 BMI는 남녀 모두 환자군에서 유의하게 높게 나타났다. 환자군의 교육 수준은 비교군에 비해 낮았고 주 거주지역 분포는 농촌이 가장 많았으며 가계 소득은 환자군에서 비교군에 비하여 높은 것으로 나타났다. 주요 일상활동 강도는 비교군에 비해 환자군에서 유의적으로 가벼운 것으로 나타났다. 발병 전 일상생활에서 느끼는 스트레스의 정도가 환자군에서 비교군에 비해 유의적으로 높았던 것으로 나타났다. 자신의 성격 유형을 비관적인 것으로 생각하는 비율과 가족의 암 병력이 환자군에서 유의적으로 높게 나타났다 식사의 규칙성에서도 환자군에서 끼니를 거르는 비율이 유의적으로 높았다. 환자군은 비교군에 비해 육식을 유의적으로 높게 선호하였으며 외식시 고기류를 선호하는 비율이 높았다. 평소 물 섭취량은 환자군에서 비교군에 비해 적었다. 환자군이 비교군에 비해 짠맛에 대한 선호도가 유의적으로 높았고 단 맛과 매운 맛은 비교군에 비해 싫어하는 경향을 보였으며 기름진 맛을 선호하는 경향이 환자군에서 유의하게 높았다. 환자군에서 굽기, 튀기기를 좋아하는 경향이 유의적으로 높았다. 환자군에서 음주 빈도, 음주량 그리고 커피 섭취량이 높게 나타났으며, 1일 흡연량이 많았고, 흡연 시작 연령은 빨랐으며, 금연 연령은 늦어 흡연 기간이 유의적으로 긴 것으로 나타났다. 환자군의 영양지식 정도와 영양태도는 비교군에 비해 유의적으로 낮았고 환자군의 영양지식 수준이 높을수록 좋은 영양태도를 가지는 것으로 나타났다. 과거 10년간 식품 섭취 빈도 조사 결과 환자군은 등푸른 생선류와 콩류 및 된장, 두부를 비교군에 비해 유의적으로 더 많이 섭취하였고 해조류, 생 녹황색채소류, 익힌 녹황색 및 담색채소류와 녹차를 더 적게 섭취한 것으로 나타났다. 본 연구의 결과는 일상생활의 스트레스와 가족의 암 병력 및 비관적 성격 유형이 대장직장암 발병의 위험인자가 될 수 있음을 제시하며 육식 선호, 적은 양의 물 섭취, 짜고 기름진 맛에 대한 높은 기호도, 음주, 흡연, 커피의 섭취 그리고 나쁜 식습관이 대장직장암 발생과 관련된 식생활 위험인자가 될 수 있음을 제시한다. 해조류, 녹황색채소, 담색채소, 녹차가 대장직장암 발생의 보호인자의 가능성도 제시되었다. 따라서 향후 지역적 식문화 특성을 고려한 보다 광범위하고 체계적인 조사 연구를 통해 이 지역의 대장직장암 발생의 위험인자와 보호인자를 재확인할 필요가 있다고 보며 본 연구의 결과는 지역민의 대장직장암 예방을 위한 영양교육 자료로서 활용될 수 있다고 본다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.10
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• pp.6223-6233
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• 2014

The aim of this study was to help disease management and prevention by analyzing the effects of income and education levels on the health of cardio-cerebrovascular patients. Using the raw data of 2010-2011 Korea Health & Nutrition Examination Survey, the correlations of health behaviors, general (socio-demographic) characteristics, body measurements, and blood test results of 3,687 cardio-cerebrovascular patients aged 30 or older were analyzed based on their income and education levels. The results suggested that lower income and education levels were correlated with a high prevalence of cardio-cerebrovascular diseases. In addition, the OR values (95% CI) of current smoking were 0.71 (0.52-0.96) for patients with a high-income and 0.41 (0.29-0.58) for those with a high level of education, showing a strong correlation between lower levels of income and education and current smoking, which is related to health deterioration. In terms of one-month drinking and high risk drinking, the OR values (95% CI) of the patients with a high income were 1.55(1.22-1.95) and 1.42(1.11-1.82), respectively. Drinking was more prevalent among high-income patients but had no correlation with the education level. The practice of walking had no significant correlation with both income and education levels. Therefore, it is imperative to emphasize the importance of temperance to high-income patients, and the importance of quitting smoking to low-income patients, as well as to provide institutional support.

• The Journal of the Convergence on Culture Technology
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• v.7 no.3
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• pp.293-301
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• 2021

This study was to find out the influence of urine cotinine in Korean adults on Cardiovasculardiseases using data from the seventh Korea national health and nutrition examination survey 2016-2018. The subjects were 7,290. The data were analyzed by frequency analysis, 𝞆2 test and logistic regression analysis using SPSS 26. The main findings were that 40-59 age, higher than 60 age, lower than high school level, Income status low, urine cotinine level under 50ng/mL, urine cotinine level 50-499ng/mL, Average cigarette per day over the 20 loosey, BMI 25g/m², no aerobic exercise, the prevalence of cardiovascular disease increased 9.0 times, 29.44 times,1.26 times, 1.68 times, 1.54 times, 1.56 times, 1.48 times, 2.06 times and 1.17 times, respectively. As a result, it is necessary to improve lifestyles such as obesity and lack of exercise, to reduce the prevalence of cardiovascular disease in Korean adults, and to pay attention to older age groups and low socioeconomic groups.

• Journal of Oral Medicine and Pain
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• v.36 no.4
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• pp.225-234
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• 2011

Tobacco smoking is a major risk factor of systemic health and also impairs oral health, which is related to development of oral cancers, periodontitis, delayed wound healing, tooth loss, failure of implant, etc. Aside from smoking, many other risk factors can be related to oral health and long-term effects of smoking on salivary flow and taste threshold are still in controversy. Authors considered dental students to be an appropriate group with good oral hygiene for a long-term study to reveal effects of smoking on oral health. This study was performed to compare smoking patterns and current oral health conditions between smokers and nonsmokers in dental students prior to long-term evaluation. 192 volunteers (85.7%) of 224 male dental students in Dankook University were evaluated through questionnaires and clinical examination in 2010. Questionnaires included smoking pattern, alcohol use, nicotine dependence, preventive care, psychological profile and clinical examinations comprised assessment of teeth or periodontal status, nicotine pigmentation, salivary flow, electrical taste thresholds and halitosis. From the study, (current) smokers were older, and drank more frequently with more alcohol intake compared to former smokers and nonsmokers(p<0.05). There was no significant difference among them in salivary flow rate, halitosis and electrical taste threshold. However, there was significant difference in DMFT rate, periodontal treatment need, nicotinic pigmentation between smokers and nonsmokers(p<0.05), irrespective of their levels of preventive care. The smokers in this study, who are young dental students with relatively shorter duration of smoking, less use of cigarettes and low level of nicotine dependence, did not reveal significant impairment of oral health. However, their oral health was found to be relatively impaired compared to nonsmokers', which suggests negative effect of smoking on the oral health and a need of smoking cessation.

• Journal of agricultural medicine and community health
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• v.38 no.4
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• pp.217-228
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• 2013

Objective: This study was performed to identify associations between the practice of health behaviors and awareness of metabolic syndrome (MetS) among adults aged 19 to 64 years in the Gwangju-Jeonnam area. Methods: This study utilized data from the 2010 Community Health Survey (CHS). Health behaviors considered in this study were smoking, alcohol drinking, physical activity, low-salt diet, and perception of stress. The index for the health behaviors was calculated as the sum of the practice of each health behavior (range: 0-5). The analysis was weighted with a complex sampling design, and the chi-square test and multiple logistic regression analysis were used to identify the association between the practice of health behaviors and awareness of MetS. Results: A total of 19.8% of the population were aware of MetS. The perception of MetS was statistically significantly associated with healthy behaviors, including nonsmoking (aOR = 1.33, 95% CI = 1.14-1.56), non-high-risk drinking (aOR = 1.54, 95% CI = 1.27-1.88), engagement in physical activity (aOR = 1.48, 95% CI = 1.28-1.72), and a low-salt diet (aOR = 1.30, 95% CI = 1.13-1.51). The ORs of the perception of MetS were significantly higher in patients with a health behavior index of 2 to 3 (aOR = 1.64, 95% CI = 1.01-2.66) and in those with an index of ${\geq}4$ (aOR = 2.47, 95% CI = 1.51-4.04) than in those with an index of 0. Among all health behaviors, physical activity had the highest OR for the perception of MetS (aOR = 1.50, 95% CI = 1.29-1.74). Conclusions: This study revealed associations between health behaviors, especially physical activity, and awareness of MetS. Therefore, integrated health promotion programs may be needed to enhance awareness of MetS and to effectively prevent MetS and non-communicable diseases.

• Journal of dental hygiene science
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• v.8 no.1
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• pp.7-12
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• 2008

The purpose of this study is to improve the oral health after understanding the usage status of oral health items and to conduct active guidance for prohibition of smoking. The survey of 326 visitors for continuous oral health management in the dentist from April 2nd 2007 to May $20^{th}$ is accomplished. The data is handled from the SPSS 12.0 statistics program and we can get the results like below. 1. The number of people answering the usage of the smooth toothbrush is 64.5% which is higher in smoking peoples than in non-smoking ones (p < 0.001). Non-smoking people 61.4% answering '3 minutes more' per brushing their teeth is higher than smoking respondents. 2. The more used device is the interdental brush by non-smoking people 36.7% than smoking ones and the answer. 3. The percentage answering 'recommendation in the dentist' in the question about the motive using the oral health devices are nearly same in 69.6 % and 67.5% by non-smoking and smoking persons. The most reason not using these devices is 'don't know how to use this' and the number of smoking guys is 38.7% which is higher than that of non-smoking ones(p < 0.05). 4. The percentage of answering 'regular visiting the dentist', the method for oral health management is 28.3% in smoking parts and 35.3% in non-smoking ones which is slightly higher. From this study, the usage and the recognition of oral hygiene devices of the patient with smoking is a little bit lower than those of non-smoking patients and small difference is shown. So public relations of the effects and the necessity of the oral hygiene devices to all people have to be performed and the education and the activity prohibiting smoking are expanded by the dental hygienist based on the understanding of oral health when the patients are smoking or not.

• Journal of Preventive Medicine and Public Health
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• v.26 no.3 s.43
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• pp.359-370
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• 1993

To identify the smoking status and its related factors in middle and high school boys in Kwanju a study was performed from 15th to loth of June 1992. Population were selected by two-stage stratified random sampling method and total 3,959 students replied to the self-administered questionnaire survey (1,574 in middle school, 1,664 in academic high school, 712 in business high school). The results were as follows ; 1. The proportion of current smokers was 1.5% in middle schools and 20.1% in high schools. And the smoking rates increased with school grade years (p<0.01). 2. For the motivation of smoking, curiosity was the most frequent factor and the next was temptation by friends. 3. The most common situation on the first experience of smoking was that middle school boys smoked a cigarette which was found in a house, through curiosity, with friends, at home. High school boys smoked a cigarette taken from friends, through curiosity, with friend, on the road or at home. 4. The proportion of smokers who smoke a cigarette regularly was 34.8% among smokers in middle school and 70.2% among smokers in high school. The most proportion of duration of smoking was less than 1 month among middle school boys (20.8%) and more than 2 years among high school boys (43.9%). The first smoking experience was in elementary school among middle school boys and the third grade of middle school in high school students. Most current smokers (73.9% in middle school boys, 65.3% in high school boys) wanted to quit smoking. 5. Smokers had significant association with intimate friend's smoking, mother's and brother's smoking, inharmonious friendships, dissatisfied with home and school life, lower school grades, generous attitude to other smokers, lack of knowledge to passive smoking and no contact to mass media (TV) (p<0.01).