Background Although the association between smoking and health-related quality of life (HRQoL) has been established, the effects of tobacco products, including combustible cigarettes (CCs) and non-combustible nicotine or tobacco products (NNTPs), on HRQoL remain unclear. This study examined the association between tobacco use and HRQoL in Korean men.
Methods Data from the Korea National Health and Nutrition Examination Survey conducted between 2013 and 2020 were analyzed. A total of 16,429 male participants aged ≥19 years completed the European Quality of Life-5 Dimensions (EQ-5D). Impaired HRQoL was defined as scoring in the lowest 20% of the EQ-5D index and having some or extreme problems in the following five domains of the EQ-5D: mobility, self-care, usual activities, pain/ discomfort, and anxiety/depression. Multiple logistic regression was conducted to evaluate the risk of impaired HRQoL in current tobacco users.
Results Current tobacco users exhibited a significantly higher risk of impaired HRQoL compared with never users (odds ratio [OR], 1.42; 95% confidence interval [CI], 1.05–1.92). Compared to never users, current tobacco users reported more problems with mobility and pain/discomfort (all P<0.05). Moreover, compared with former tobacco users, current tobacco users had a higher risk of impaired HRQoL (OR, 1.60; 95% CI, 1.18–2.17). Compared to former tobacco users, current tobacco users reported more problems with mobility and pain/discomfort (all P<0.05).
Conclusion Use of CCs and NNTPs is associated with impaired HRQoL in Korean men. Therefore, further interventions for lifestyle modification and smoking cessation treatments are required to reduce the risk of impaired HRQoL among current tobacco users.
Background Noncombustible nicotine or tobacco product (NNTP) use, and cigarette smoking are associated with a high likelihood of unhealthy weight control behaviors (UWCBs) among adolescents. However, no study has addressed the differences in UWCBs among non-users, single users of combustible cigarettes (CCs) or NNTPs and dual users. This study compared the frequencies of weight control behaviors according to the status of CC and NNTP use among Korean adolescents.
Methods This was a cross-sectional study of 25,094 adolescents who had attempted to reduce or maintain their body weight during the past 30 days, using data from the 15th Korea Youth Risk Behavior Survey, 2019. Data on the status of CC and NNTP use, weight status, and weight control behaviors were obtained using self-report questionnaires. Subjects were categorized into four groups: non-users, cigarette-only users, NNTP-only users, and dual users.
Results Among boys and girls, current smokers and NNTP users were 8.9%±0.3% and 5.5%±0.3%, and 4.2%±0.2% and 1.7%±0.1%, respectively. Among boys, NNTP-only users were more likely to engage in extreme weight control behaviors than non-users. Among girls, users of either CCs or NNTPs were more likely to engage in extreme weight control behaviors and less extreme weight control behaviors than non-users.
Conclusion This study shows that users of either CCs or NNTPs are more likely to engage in UWCBs, and NNTP-only users are the most likely to do so.
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Reflecting on progress and challenges: the Korean Journal of Family Medicine in 2024 Seung-Won Oh Korean Journal of Family Medicine.2025; 46(2): 55. CrossRef
The Interconnected Nature of Smoking, Depression, and Obesity in Behavioral Medicine Joung Sik Son Korean Journal of Family Medicine.2024; 45(4): 181. CrossRef
Background Smoking can reduce taste sensitivity, the ability to sense various tastes, and diet quality and can increase the incidence of diseases such as hypertension. This study aimed to analyze the association between the smoking amount, subjective salt preference, and salt-related eating behaviors.
Methods Data of more than 16 million individuals from the Korean Community Health Survey were used. Forest plots were drawn to compare the cumulative odds ratios of salt taste preference and salt-related eating behaviors, adjusted for sex, age, body mass index, education level, household income, marital status, and drinking status at various smoking levels.
Results Subjective salt preference and salt-related eating behaviors increased with smoking amount; the adjusted odds ratios (AORs) for smoking >20 cigarettes were higher than those for smoking <20 cigarettes. For daily smokers, the AOR was 1.27 (95% confidence interval [CI], 1.22–1.31) for 1–5 cigarettes per day and 1.68 (95% CI, 1.65–1.71) for 16–20 cigarettes per day (P<0.001). Smokers were more likely to have more frequent salt-related eating behaviors than nonsmokers.
Conclusion The subjective salt preference of smokers was higher than that of nonsmokers. Additionally, smokers used salt or soy sauce and dipped fried food in soy sauce more frequently than nonsmokers, which was also related to smoking amount.
Background Tobacco smoking is associated with several diseases and deaths in older Koreans. This study aimed to evaluate the factors associated with smoking cessation in older Koreans.
Methods We selected 579 subjects who started smoking before the age of 65 years from the Korea National Health and Nutrition Examination Survey 2016–2018. We excluded the subjects who quit smoking before the age of 65 years, and then categorized the rest of subjects into those who stopped smoking after the age of 65 years and those who are constant smokers. Multivariable logistic analysis was performed to evaluate the factors related to smoking cessation among older Koreans.
Results Among the participants, 66.1% were persistent smokers. After multivariable analysis, the factors significantly associated with smoking cessation were as follows: being in the age group of 75–79 years (adjusted odds ratio [aOR], 4.07; 95% confidence interval [CI], 2.12–7.83), being in the age group of 70–74 years (aOR, 3.10; 95% CI, 1.72–5.61), a family history of ischemic heart disease (aOR, 3.36; 95% CI, 1.09–10.35), and having had no cancer screening (aOR, 0.36; 95% CI, 0.18–0.70).
Conclusion Further efforts to identify the factors related to smoking cessation will help formulate a smoking cessation policy.
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Current status of health promotion in Korea Soo Young Kim Journal of the Korean Medical Association.2022; 65(12): 776. CrossRef
Although the prevalence of cigarette smoking has declined in Western countries over the past few decades, a comparable decline among males has not been observed in Asian countries, especially in South Korea, where approximately 40%–50% of men and 4%–8% of women have been identified as smokers, and there is a pressing need to understand the background of cigarette smoking in these populations. The present study is a narrative review of the research literature on cigarette smoking in South Korea. First, we describe the social, economic, and cultural factors that impact cigarette smoking in South Korea. The paper also reviews the available peer-reviewed literature comprising observational studies and interventional studies, including randomized controlled trials. The extant literature on smoking in Korean Americans is also reviewed. Cigarette smoking in South Korea has been relatively understudied, and this review identifies priority areas for future research, including the use of mobile interventions.
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Background Several studies have suggested that smoking may cause insulin resistance. However, the association between smoking and insulin resistance is still controversial. The purpose of this study was to investigate the association between smoking status and insulin resistance in Korean nondiabetic male population.Methods: A total of 5,969 men, aged > 20 years were recruited from those who visited the Health Promotion Center, Samsung Medical Center between 2005 and 2006. All subjects were divided into three categories: on-smokers (n = 2,594), ex-smokers (n = 1,580), and current-smokers (n = 1,795). Fasting values for glucose and insulin were used to estimate insulin resistance by HOMA (homeostasis model assessment). An independent association between smoking status and HOMA-IR (homeostasis model assessment of insulin resistance) was assessed after adjustment for factors infl uencing insulin sensitivity such as age, exercise, alcohol, body mass index, abdominal circumference, and blood pressure.Results: HOMA-IR was signifi cantly higher in ex-smokers and current-smokers than in non-smokers (2.09 ± 0.94 vs. 2.04 ± 0.90, 1.96 ± 0.86, P < 0.01, respectively). After adjustment for factors potentially affecting insulin sensitivity (age, alcohol intake, exercise, BMI, body fat, abdominal circumference, and blood pressure), the association persisted for ex-smokers (P = 0.008). And HOMA-IR was signifi cantly higher in ≥ 40 pack-years smokers than in non-smokersConclusion: Based on HOMA-IR, previous-smoking and chronic smoking were significantly associated with insulin resistance in apparently healthy Korean nondiabetic men.
Background : The hemoglobin is a basic tool in diagnosing anemia. Not many studies compared hemoglobin between non-smokers and smokers in Korea and they did not differentiate hemoglobin between males and females. This study was conducted to show the difference of hemoglobin between non-smokers and smokers in male population and factors affecting hemoglobin.
Methods : We gathered 313 men who underwent periodic health examination from May to July 2001 in a general hospital. The relationship between cigarette smoking and hemoglobin concentration was examined by comparing the means of hemoglobin between two groups and through multiple regression analysis.
Results : The mean of hemoglobin was significantly higher in smokers than in non-smokers, especially in smokers with more than 1 pack per day. The factors that influence the hemoglobin level were age, the amount per day, and the total amount they smoked in the past(pack-year). Daily cigarette smoking seemed to cause a general upward shift of hemoglobin distribution curve, while age and pack-year on the opposite.
Conclusion : The study suggests that hemoglobin cutoff values should be adjusted for smokers and one must consider the patient's age to compensate for masking effect of smoking and aging on detection of anemia.
Background : It is well known that there is an adverse effect of long-term cigarette smoking on pulmonary function. But there are few reports about the effect of different habits of cigarette smoking on pulmonary function. Some smokers think that different habits of cigarette smoking are safer than others and this can be, an obstacle to the education of smoking cessation. Therefore, we have obtained applicable basic information for education of smoking cessation by anaysing the effects of different habits of cigarette smoking on pulmonary function.
Methods : We surveyed current smokers on different habits of smoking who had performed pulmonary function test at the pulmonary function laboratory of one tertiary hospital in Seoul and pulmonary function test was done as a part of comprehensive health check-up at health promotion center of one secondary hospital at Ulsan from May 1998 to July 1998.
Results : The factors were age, height, weight and amount of total smoking that had effect on pulmonary function. There were six different habits of smoking that we could analyse time of first smoking after sleep, average time of one cigarette smoked, current amount of smoking, length of one cigarette smoked, effort to quit smoking, smoking with drinking and all these six habits of smoking had no relationship with the results of the pulmonary function test.
Conclusion : The damage in pulmonary function was not protected by different habits of smoking that were previously known to be more safe or healthy. Therefore, we concluded that smoking cessation is the only way to prevent the damage in pulmonary function from cigarette smoking.
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