• Journal of the Korean Data and Information Science Society
• /
• v.27 no.5
• /
• pp.1349-1360
• /
• 2016

The purpose of this study was to identify the degree of quality of life (QoL) and its related factors in patients with Korean Chronic Obstructive Pulmonary Disease (COPD). With data collected by Korea National Health and Nutrition Survey in 2013, general and disease-related variables, pulmonary function test, and EuroQol-5Dimension (EQ-5D) were analyzed. The mean of EQ-5D index was 0.916 in patients with COPD and 0.941 in non-COPD. The EQ-5D index and its sub dimensions (mobility, self-care, usual activity, pain/discomfort, anxiety/depression) of COPD patients were significantly lower than that of non-COPD. However, difference in COPD patients' airway limitation was significant only for self-care of EQ-5D (${\chi}^2=9.50$, p=.013). The related factors of QoL in COPD patients were age, gender, level of education, quartile of household income, smoking status, and number of comorbid diseases. Based on the results, it is important to pay close attention to COPD patients' QoL as well as comprehensive interventions which possibly improve their QoL.

• KDI Journal of Economic Policy
• /
• v.31 no.2
• /
• pp.127-153
• /
• 2009

There is a growing concern about potential harmful effect of second-hand or environmental tobacco smoking. As a result, smoking bans in workplace become more prevalent worldwide. In Korea, workplace smoking ban policy become more restrictive in 2003 when National health enhancing law was amended. The new law requires all office buildings larger than 3,000 square meters (multi-purpose buildings larger than 2,000 square meters) should be smoke free. Therefore, a lot of indoor office became non smoking area. Previous studies in other counties often found contradicting answers for the effects of workplace smoking ban on smoking behavior. In addition, there was no study in Korea yet that examines the causal impacts of smoking ban on smoking behavior. The situation in Korea might be different from other countries. Using 2001 and 2005 Korea National Health and Nutrition surveys which are representative for population in Korea we try to examine the impacts of law change on current smoker and cigarettes smoked per day. The amended law impacted the whole country at the same time and there was a declining trend in smoking rate even before the legislation update. So, the challenge here is to tease out the true impact only. We compare indoor working occupations which are constrained by the law change with outdoor working occupations which are less impacted. Since the data has been collected before (2001) and after (2005) the law change for treated (indoor working occupations) and control (outdoor working occupations) groups we will use difference in difference method. We restrict our sample to working age (between 20 and 65) since these are the relevant population by the workplace smoking ban policy. We also restrict the sample to indoor occupations (executive or administrative and administrative support) and outdoor occupations (sales and low skilled worker) after dropping unemployed and someone working for military since it is not clear whether these occupations are treated group or control group. This classification was supported when we examined the answers for workplace smoking ban policy existing only in 2005 survey. Sixty eight percent of indoor occupations reported having an office smoking ban policy compared to forty percent of outdoor occupation answering workplace smoking ban policy. The estimated impacts on current smoker are 4.1 percentage point decline and cigarettes per day show statistically significant decline of 2.5 cigarettes per day. Taking into account consumption of average sixteen cigarettes per day among smokers it is sixteen percent decline in smoking rate which is substantial. We tested robustness using the same sample across two surveys and also using tobit model. Our results are robust against both concerns. It is possible that our measure of treated and control group have measurement error which will lead to attenuation bias. However, we are finding statistically significant impacts which might be a lower bound of the true estimates. The magnitude of our finding is not much different from previous finding of significant impacts. For cigarettes per day previous estimates varied from 1.37 to 3.9 and for current smoker it showed between 1%p and 7.8%p.

• Journal of the Korea Convergence Society
• /
• v.9 no.8
• /
• pp.95-100
• /
• 2018

The Korea Convergence Society. The aim of this study was to evaluate the association between alcohol consumption and periodontal diseases in Korea adults. The date from the 2014 Korean National Health and Nutrition Survey were used, and 4,328 subjects over 30 years were included in the analysis. Periodontal disease was assessed using the Community Periodontal Index. The adjusted odds ratio of drinking experience, drinking frequency, the drinking amount and the drinking duration were calculated from the logistic regression model with the never-drinkers as a reference group and the logistic model controlled for age, gender, education, and diabetes. This study found that the risk of periodontal disease according to the drinking status of adults over 30 years of age was 1.39 times (95% CI=1.01-1.90) higher than that of non-drinking group when the number of drinks consumed at one time was more than seven glasses. The frequency of binge alcohol consumption, amount of alcohol consumption and duration of alcohol consumption were significantly associated with the risk of periodontal disease in a dose-response pattern among over 30 years. Alcohol consumption was discovered to be a potential risk indicator for periodontitis. Dental practitioners need to be aware that patients who drink may be at higher risk of periodontitis and could benefit from advice to quit drinking and maintain regular dental visits.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.8 no.4
• /
• pp.639-648
• /
• 2013

Metabolic syndrome is the most important risk factors of cardiovascular diseases So, it is judged that Quality of life of persons with metabolic syndrome inevitably deteriorate. For the purpose, the study aims to analyse the number of risk factors, and the relationship between abnormality of each risk factor and Quality of life, targeting adult women aged more than 19. For this study, data from the National Health and Nutrition Behavior Survey in 2007 and 2008 were incorporated and 4,365 subjects were collected for the study. Version 17.0 SPSS was used for data analysis. Statistical significance was defined as p<0.05. As a result of the study, the prevalence rate of metabolic syndrome was 24.2%. According to the number of risk factors of metabolic syndrome the regression coefficient of Quality of life was -0.024 when the number of risk factor was one, -0.048 when there were two risk factors, -0.090 when there were three risk factors, -0.117 when there were four risk factors, and -0.168 when there were five risk factors. The regression coefficient(abnormal/normal)of risk factors of metabolic syndrome were as follows; Waist circumference -0.035, Blood pressure was -0.064, Fasting glucose was -0,026 and HDL cholesterol was -0.012. In conclusion, as it was discovered that risk factors of metabolic syndrome had significant relations with Quality of life, it is suggested that the relations between some significant variables and Quality of life should be actively considered so that adult women can perceive metabolic syndrome properly and endeavor to improve their Quality of life.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.1
• /
• pp.389-397
• /
• 2018

The purpose of this study is to evaluate the prevalence and related risk factors of problem drinking in the Korean adult population. Participants (n=7,867) aged 19 years or older were selected from the Korea National Health and Nutrition Examination Survey [KNHANES] of 2007-2008. Sociodemographic characteristics and AUDIT score were obtained from the KNHANES dataset. AUDIT scores were categorized into three groups, including low risk, intermediate risk, and high-risk alcohol drinking according to WHO guidelines. In this study, the prevalence of high-risk and intermediate-risk alcohol drinking were 12.2% and 21.0%, respectively. Adjusted mean AUDIT score was higher in men, younger individuals, as well as those with lower education levels and those that smoked. Results revealed that demographic variables, including sex, age, education level, and smoking, were important factors affected high-risk drinking. In particular, since smoking was the most significant risk factor, the adjusted odds ratio for high-risk drinking among participants that smoked was 4.78 [(95% confidence interval (CI)=3.75-6.10, p<.0001)]. This study suggests that men, younger age, low educational level, and smoking are the risk factors for a high-risk alcohol drinking.

• Journal of Korean Home Economics Education Association
• /
• v.22 no.4
• /
• pp.77-90
• /
• 2010

The purpose of this study was to investigate the practice of eating life and the needs of dietary education of high school students. The data was collected by means of questionaire form the total of 463 high school students who were living in Daegu and Gyeongbuk province. Recognition of the need dietary education was 3.47/5.00, the utilization in daily life was 3.16, the degree of interesting was 3.23, and the degree of difficulty was 2.82. The reason of necessity was health care and growth (54.6%). The reasons of interesting were as follows: various information (28.3%), job choices (21.2%), happy family life (20.7%), cooking practice (19.7%). The degree of dietary education needs was 3.24. The need of cooking ability improvement was highest as 3.59. The practice of eating life was 3.41. Such as hand washing, food hygiene was the highest as 3.71. But the items of healthy eating life and evaluation of eating life were the lowest. The practice in daily life was positively correlated with recognition of the need, utilization, interest. But it was a negative correlation with the difficulty. Therefore dietary education should be strengthened in home economics subject, and to increase the rate of daily practice the teaching content and methods must be improved. In addition, dietary education in schools should be closely connected with families and local communities.

• Korean Journal of Food Science and Technology
• /
• v.43 no.1
• /
• pp.17-22
• /
• 2011

In this study, formaldehyde in various fisheries products was previously derivatized with acetylacetone and subsequently analyzed by using HPLC-PDA. The formaldehyde contents ranged from 0.07 to 73.74 mg/kg. The compound was significantly higher in both mollusks (0.34-12.38 mg/kg) and crustaceans (0.09-73.74 mg/kg) than in fish (0.07-3.35 mg/kg) and shellfish (0.50-3.90 mg/kg). This difference was due to storage time and temperature. In general, fish and shellfish are sold live or in refrigerated form with shorter a shelf-life, but mollusks and crustaceans are distributed in cold or frozen systems with a longer shelf-life. Using food intake data from a report of the National Health and Nutrition Survey, the daily human exposure level to formaldehyde was 0.58% of the ADI. The results from this study might provide fundamental information to confirm naturally-originating or fraudulent formaldehyde treatment in fisheries products.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.8 no.5
• /
• pp.779-784
• /
• 2013

This study aims to look into the relationship between the parents's family history of diabetes and factors of metabolic syndrome focusing on Korean adult males with a family history of diabetes. The data used for the study was collected from the 2010 Korea National Health and Nutrition Examination Survey. The subjects of the study totaled 2,045. For statistical analysis, double sampling general linear regression was used and the statistical significance was p<0.05. As a result of a multi-variate analysis with general characteristics corrected, the following was discovered: when fathers had a family history of diabetes, girth increased by 2.5cm, fasting blood sugar(glu) increased by 9.6mg/dL and neutral fat increased by 41.6mg/dL When the mothers had a family history of diabetes, girth increased by 2.4cm, fasting blood sugar(glu) increased by 15.4mg/dL, and the neutral fat increased by 27.2mg/dL. In conclusion, when the fathers had a family history of diabetes, their children's girth, fasting blood sugar and neutral fat were significantly higher, and when the mothers had a family history of diabetes, their children's girth and fasting blood sugar were significantly higher.

• Korean Journal of Clinical Laboratory Science
• /
• v.50 no.2
• /
• pp.190-196
• /
• 2018

Obesity has been reported to be a cluster of risk factors in the pathological ecology, In particular, there is increasing evidence that inflammation-related factors are associated with diabetes. This study examined the relationship between the hs-CRP level and FBG, fructosamine, and $HbA_1c$ in 4,734 non-diabetic adults aged 20 years or older, who were approved by the National Health and Nutrition Survey in 2015. The results showed that the FBG, fructosamine, and $HbA_1c$ levels increased with increasing BMI; the hs-CRP levels were the highest in the obese group, and HOMA-IR, an index of insulin resistance, was also significantly higher in the obese group. The hs-CRP level was the highest in obese adults. The levels of FBG, fructosamine. and $HbA_1c$, which are involved in blood glucose control, increased with increasing hs-CRP level. The FBG, fructosamine, and $HbA_1c$ levels increased significantly with increasing hs-CRP level after adjusting for various related variables. These results suggest that the obesity-induced increase in hs-CRP is a risk factor for diabetes mellitus in non-diabetic adults. Therefore, proper dietary habits and regular exercise should prevent diabetes by preventing obesity in non-diabetic adults.

• Journal of Korean Ophthalmic Optics Society
• /
• v.17 no.4
• /
• pp.449-455
• /
• 2012

Purpose: This study was found the risk factors of cataract by gender in elder and older Korean adults. Methods: We investigated the data for 5,024 (men 2,163 people, women 2,861 people) people, aged 40-95 years, from the Korean National Health and Nutrition Examination Survey. We divided into two groups (group 1: 40-64 years, group 2: 65-94 years). We divided into two groups (group 1: 40-64 years, group 2: 65-94 years). Cataract was decided in case of at least one eye with lens opacity. We presented significant odds ratio (OR) increase of cataract according to the obesity and socioeconomic information including house income and education level after adjusting for diabetes, hypertension, high triglyceride, outside active, smoking and drinking habits in two groups with distinction of sex. Results: House income (or education) was strongly related to the prevalence of agerelated cataract in all groups. In models adjusting for all other related factors, cataract patients with lower income and education had a higher prevalence of cataract (group1: OR, 1.84[1.17-2.91], OR, 3.00[1.90-4.74], group 2: OR, 3.47[2.53-4.74], OR, 7.44[5.41-10.23] for men. In comparison, for women, cataract patients with lower income, lower education and obesity had a higher prevalence of cataract (group1: OR, 1.72[1.14-2.60], OR, 4.48[2.72-7.38], OR, 1.40[1.10-1.82], group 2: OR, 2.32[1.70-3.16], OR, 29.99[20.31-44.28], OR, 1.27[1.04-1.54]). Conclusions: Factors of low socioeconomic status were associated with age-related cataract in Korean. Obesity-cataract association was stronger in women.