Background
This study examined disparities in 1-year mortality rates between infants born to married and unmarried single-parent families, emphasizing the need for targeted health policies.
Methods
Data from 3,298,263 cases, obtained from the South Korea National Statistical Office (2010–2017), were analyzed. T-tests and chi-square tests were used to assess the demographic characteristics of the study group. The number of deaths per 1,000 live births was calculated, and logistic and multivariable logistic regressions were employed to compare infant mortality rates between family types. Additional stratified analyses, based on gestational age and birth weight, further elucidated the relationship between parental marital status and infant mortality.
Results
Infants from unmarried families exhibited a 3.34-fold higher crude odds ratio (OR) for 1-year mortality (95% confidence interval [CI], 2.56–4.36; P<0.001) than that from married families. After adjusting for confounders, the adjusted OR was 1.40 (95% CI, 1.03–1.92). Stratification by gestational age and birth weight revealed crude ORs of 4.62 (95% CI, 3.34– 6.39) in non-preterm infants (≥37 weeks) and 4.76 (95% CI, 3.46–6.56) in non-low-birth-weight infants (≥2.5 kg), highlighting a more pronounced disparity in infants born at or above normal weight and full term. No significant difference (P>0.05) was found in the crude OR for 1-year mortality rates among low-birth-weight (<2.5 kg) or preterm (<37 weeks) infants between the two-family types.
Conclusion
This study highlights the significant disparity in infant mortality rates based on parental marital status, underscoring the need for enhanced social support and tailored policies for unmarried single-parent families.

Background
Primary care physicians perform a comprehensive role by providing continuous, patient-centered, and accessible healthcare and establishing connections with specialized care. However, the association between the supply of primary care physicians and mortality rates in South Korea has not been thoroughly investigated.
Methods
This study utilized data from 229 si-gun-gu in South Korea from 2016 to 2020. The densities of primary care physicians, physicians in functional primary clinics, specialists in primary care facilities, and active physicians per 100,000 people were independent variables. Age-adjusted all-cause mortality and cause-specific mortality rates per 100,000 individuals were the dependent variables. Negative binomial regression, negative binomial regression with a pseudo-panel approach, and geographically weighted regression were used to analyze the data.
Results
Our study revealed a significant negative association between the density of primary care physicians and all-cause mortality. An increase in a primary care physician per 100,000 population was significantly linked to a 0.11% reduction in all-cause mortality (incidence rate ratio, 0.9989; 95% confidence interval, 0.9983–0.9995). Similar associations have been observed between mortality rates owing to cardiovascular diseases, respiratory tract diseases, and traffic accidents.
Conclusion
This study provides evidence that having a higher number of primary care physicians in South Korea is associated with lower mortality rates. Future research should consider better indicators that reflect the quality of primary care to better understand its impact on population health outcomes. These findings emphasize the significance of strengthening primary care in the South Korean healthcare system to improve the overall health and wellbeing.

Citations

• What is the optimal number of physicians for a sustainable healthcare system?
  Seung-Won Oh
  Korean Journal of Family Medicine.2025; 46(1): 1.     CrossRef
• Reinforcing Primary Care in Korea: Policy Implications, Data Sources, and Research Methods
  Chung-Nyun Kim, Seok-Jun Yoon
  Journal of Korean Medical Science.2025;[Epub]     CrossRef
• Obesity management in primary care: A joint clinical perspective and expert review from the Obesity Medicine Association (OMA) and the American College of Osteopathic Family Physicians (ACOFP) - 2025
  Nicholas Pennings, Catherine Varney, Shaun Hines, Bernadette Riley, Patricia Happel, Samir Patel, Harold Edward Bays
  Obesity Pillars.2025; 14: 100172.     CrossRef
• 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
• Current Status and Future Directions of Primary Care in the World: Insights from Japan
  Sinyoung Cho, Belong Cho, Seo Eun Hwang
  Korean Journal of Family Practice.2025; 15(1): 22.     CrossRef
• Supply of Primary Care Physicians: A Key Strategy to Reduce Population Mortality
  Young Gyu Cho
  Korean Journal of Family Medicine.2024; 45(2): 59.     CrossRef
• Primary Care Physicians’ Important Role: Lifestyle Modification for Chronic Disease Management
  Su-Min Jeong
  Korean Journal of Family Medicine.2024; 45(5): 237.     CrossRef

Background
This study aimed to identify the clinical content of patients registered with the Lifetime Health Maintenance Program (LHMP) under the care of a single family physician who introduced and operated the program in Korea at a tertiary hospital for over 30 years.
Methods
We analyzed the electronic medical records of 745 patients who had registered for more than 3 times with the LHMP under the care of a single family physician between January 1, 2010 and December 31, 2019. We reviewed medical records from June 1989, when the hospital was established, to February 2022. The participants’ age at the time of LHMP enrollment, sex, initial consultation date, final consultation date, and consultation content were evaluated.
Results
Patients visited the LHMP for various reasons, including acute symptom management, chronic disease management, psychiatric consultation, counseling on health behaviors, health checkups, and vaccination. The top five diagnoses for acute symptom management were upper respiratory infection, abdominal pain, dizziness/vertigo, headache, and lower back pain, whereas those for chronic disease management were dyslipidemia, hypertension, osteoarthritis, osteoporosis/osteopenia, and diabetes. More than one in five patients received psychiatric consultation and counseling on health behaviors. As the duration of the program enrollment increased, the proportion of patients visiting the LHMP for acute symptoms, vaccinations, and health checkups also increased. Furthermore, the number of categories of consultation content increased for each patient.
Conclusion
The LHMP emphasized the need to systematize regular primary care physicians in Korea. Policy changes are necessary to strengthen primary care, and the LHMP serves as an intermediate step in organizing regular primary care physicians in Korea.

Citations

• Pharmacotherapy guidelines for smoking cessation in primary healthcare clinics
  Cheol Min Lee, Yu Jin Paek, Yoo Bin Seo, Eon Sook Lee
  Journal of the Korean Medical Association.2024; 67(4): 230.     CrossRef

Background
This study aimed to improve the clinical course of patients through rapid response by analyzing the characteristics of critically ill patients with confirmed coronavirus disease 2019 (COVID-19) in Busan between December 1, 2020, and December 31, 2021.
Methods
We divided patients diagnosed with COVID-19 into mild-to-moderate and critical groups based on their clinical severity. The critically ill patients were further sub-divided into delta and delta variant non-epidemic group.
Results
The following factors were significantly more frequent in critically ill patients than in patients with mild-tomoderate symptoms: male sex, age ≥60 years, symptoms at the time of diagnosis, and those with underlying diseases. The following factors were significantly more common in the non-delta variant epidemic group than in the delta variant epidemic group in critically ill patients: male sex, age ≥60 years, underlying diseases, and not being vaccinated. In the delta variant epidemic group, the duration between confirmation of disease and its progression to critically ill status was significantly shorter than that in the non-delta variant epidemic group.
Conclusion
COVID-19 is characterized by the emergence of new variants and repeated epidemics. Therefore, it is necessary to analyze the characteristics of critically ill patients to efficiently distribute and manage medical resources.

Background
Continuity of care in primary care settings is crucial for managing diabetes. We aimed to statistically define and analyze continuity factors associated with demographics, clinical workforce, and geographical relationships.
Methods
We used 2014–2015 National Health Insurance Service claims data from the Korean registry, with 39,096 eligible outpatient attendance. We applied multivariable logistic regression to analyze factors that may affect the continuity of care indices for each patient: the most frequent provider continuity index (MFPCI), modified-modified continuity index (MMCI), and continuity of care index (COCI).
Results
The mean continuity of care indices were 0.90, 0.96, and 0.85 for MFPCI, MMCI and COCI, respectively. Among patient factors, old age >80 years (MFPCI: odds ratio [OR], 0.81; 95% confidence interval [CI], 0.74–0.89; MMCI: OR, 0.84; 95% CI, 0.76–0.92; and COCI: OR, 0.81; 95% CI, 0.74–0.89) and mild disability were strongly associated with lower continuity of care. Another significant factor was the residential area: the farther the patients lived from their primary care clinic, the lower the continuity of diabetes care (MFPCI: OR, 0.74; 95% CI, 0.70–0.78; MMCI: OR, 0.70; 95% CI, 0.66–0.73; and COCI: OR, 0.74; 95% CI, 0.70–0.78).
Conclusion
The geographical proximity of patients’ residential areas and clinic locations showed the strongest correlation as a continuity factor. Further efforts are needed to improve continuity of care to address the geographical imbalance in diabetic care.

Citations

• Association of rurality and decreased continuity of care prior to a diagnosis of prediabetes
  Bobbie L. Johannes, Arch G. Mainous, Alex R. Chang, H. Lester Kirchner, G. Craig Wood, Christopher D. Still, Lisa Bailey‐Davis
  The Journal of Rural Health.2025;[Epub]     CrossRef
• Disease prevention measures applicable to primary healthcare clinics
  Jae-Heon Kang
  Journal of the Korean Medical Association.2024; 67(4): 226.     CrossRef
• Association between continuity of care and inappropriate prescribing in outpatient care in Germany: a cross-sectional analysis conducted as part of the LoChro trial
  Aline Pfefferle, Nadine Binder, Julia Sauer, Mario Sofroniou, Gloria Metzner, Erik Farin, Sebastian Voigt-Radloff, Andy Maun, Claudia Salm
  BMJ Open.2024; 14(7): e082245.     CrossRef
• COVID-19 pandemic has disrupted the continuity of care for chronic patients: evidence from a cross-sectional retrospective study in a developing country
  Abbasali Dehghani Tafti, Azadeh Fatehpanah, Ibrahim Salmani, Mohammad Amin Bahrami, Hossien Tavangar, Hossien Fallahzadeh, Ali Ahmadi Tehrani, Sajjad Bahariniya, Gholamreza Ahmadi Tehrani
  BMC Primary Care.2023;[Epub]     CrossRef
• Evaluating the effect of the COVID-19 pandemic on hypertension and diabetes care in South Korea: an interrupted time series analysis
  Boram Sim, Sunmi Kim, Eun Woo Nam
  BMC Public Health.2023;[Epub]     CrossRef
• The Impact of Continuity of Care on Health Indicators in Patients With Type 2 Diabetes Mellitus in Family Medicine Clinics in Riyadh
  Ghada Hussein, Aljoharah A Al Saud, Ahmad M Siddiqi, Abdallah Khasawinah, Ahmad Alenezi, Riham A Mohammed, Yaser A Alendijani
  Cureus.2023;[Epub]     CrossRef
• The Role of Continuity of Care in the Management of Chronic Disease
  Seung-Won Oh
  Korean Journal of Family Medicine.2022; 43(4): 207.     CrossRef

Background
Folic acid is involved in inflammatory reactions; however, the association between folic acid and allergic diseases, particularly asthma, remains unclear. Thus, this study aimed to evaluate the association between serum folic acid levels and asthma in Koreans.
Methods
This study analyzed the serum folic acid levels of 6,615 individuals included in the 2016–2018 Korea National Health and Nutrition Examination Survey. The prevalence of asthma was determined using a questionnaire that identified cases of physician-diagnosed asthma. The relationship between serum folic acid levels and asthma was analyzed using logistic regression analysis.
Results
Multiple logistic regression analysis showed that a 1 ng/mL increase in serum folic acid level significantly reduced the risk of asthma after adjusting for confounding factors including sex, age, household income, current smoking, current alcohol use, and body mass index (odds ratio [OR], 0.930; 95% confidence interval [CI], 0.876– 0.987; P=0.017). The relationship between the adjusted odds of asthma and serum folic acid levels were consistently inverse (OR, 2.266; 95% CI, 1.126–4.420; P for trend=0.038).
Conclusion
Serum folic acid levels are inversely associated with physician-diagnosed asthma in the Korean population.

Citations

• Association between serum folate levels and blood eosinophil counts in American adults with asthma: Results from NHANES 2011–2018
  Jun Wen, Changfen Wang, Mohan Giri, Shuliang Guo
  Frontiers in Immunology.2023;[Epub]     CrossRef

Background
Smartphone usage is indispensably beneficial to people’s everyday lives. However, excessive smartphone usage has been associated with physical and mental health problems. This study aimed to evaluate the association of smartphone usage with depressive symptoms, suicidal thoughts, and suicide attempts in Korean adolescents.
Methods
This cross-sectional study was conducted in 54,603 Korean adolescent participants (26,930 male and 27,673 female) in the Korea Youth Risk Behavior Survey in 2017 who reported their smartphone use. We performed multiple logistic regression analysis to evaluate the association of smartphone use with mental health after adjusting for relevant covariates.
Results
Among the participants, 25.6% of male students and 38.4% of female students reported using their smartphone for at least 30 hours per week. As time duration of smartphone usage increased, the risk of experiencing depressive symptoms, suicidal thoughts, and suicide attempt tended to increase, with odds ratios (95% confidence interval) of 1.18 (1.10–1.26), 1.18 (1.08–1.29), and 1.34 (1.11–1.60), respectively, for high smartphone usage compared with low smartphone usage. These associations remained significant with only slight change in odds ratios after consideration of problems that may be caused by smartphone usage, such as conflicts with family members or peers, or disturbance in school work.
Conclusion
Smartphone overuse was independently associated with an increased risk of mental health problems, which did not seem to be mediated by the problems caused by smartphone usage.

Citations

• Factors Influencing Suicidal Ideation in Female Adolescents With Smartphone Overdependence
  Hyeongyeong Yoon
  Journal of Pediatric Health Care.2025; 39(2): 225.     CrossRef
• Excessive smartphone use, smartphone dependency and body image distortion in Korean adolescents
  Young Gyu Cho
  Korean Journal of Family Medicine.2025; 46(2): 58.     CrossRef
• COVID-19 lockdown related stress among young adults: The role of drug use disorder, neurotic health symptoms, and pathological smartphone use
  Groupson-Paul Okechukwu, Macpherson Uchenna Nnam, Clement E Obadimu, David O. Iloma, Peter Offu, Fidelis Okpata, Emmanuel Ugochukwu Nwakanma
  Journal of Forensic Psychology Research and Practice.2024; 24(2): 192.     CrossRef
• How does smartphone addiction affect the lives of adolescents socially and academically?: a systematic review study
  Sinem Cilligol Karabey, Abdulkadir Palanci, Zeynep Turan
  Psychology, Health & Medicine.2024; 29(3): 631.     CrossRef
• Shifting Mindsets; A Critical Commentary on Child Protection and Welfare, Disability, and Online Risk Through Critical Literature Review
  Rose Doolan Maher, Susan Flynn, Julie Byrne
  Child Care in Practice.2024; 30(1): 38.     CrossRef
• Latent class analysis of health behaviors, anxiety, and suicidal behaviors among Korean adolescents
  Mi-Sun Lee, Hooyeon Lee
  Journal of Affective Disorders.2024; 354: 339.     CrossRef
• Association between smartphone overdependence and mental health in South Korean adolescents: a secondary data analysis
  Hyeseon Yun, Eun Kyoung Choi
  Child Health Nursing Research.2024; 30(2): 87.     CrossRef
• Problematic Smartphone Use and Its Impact on the Psychology of Adolescents in Malaysia
  Hazwanim Hashim, Hizlinda Tohid, Teh Rohaila Jamil, Nik Ruzyanei Nik Jaafar, Shamsul Azhar Shah
  Pertanika Journal of Social Sciences and Humanities.2023; 31(2): 505.     CrossRef
• Increased psychological distress among young people before and during the fifth wave of COVID-19 after two years of pandemic in Hong Kong: a 6-month longitudinal study
  Stephanie MY Wong, Eric YH Chen, YN Suen, Winky Ho, Sherry KW Chan, Edwin HM Lee, KT Chan, Simon SY Lui, Michael TH Wong, Christy LM Hui
  BMC Psychiatry.2023;[Epub]     CrossRef
• Does Excessive Smartphone Use Reduce Physical Activity in Adolescents?
  Soo Young Kim
  Korean Journal of Family Medicine.2023; 44(5): 247.     CrossRef
• Problematic Smartphone Use and Its Relationship With Anxiety and Suicidal Ideation Among South Korean Adolescents
  Mi-Sun Lee, Hooyeon Lee
  Psychiatry Investigation.2023; 20(9): 843.     CrossRef
• Smartphone addiction and perceived pain among nursing students: a cross-sectional study
  Kamuran Özdil, Aslıhan Çatıker, Gizem Deniz Bulucu Büyüksoy
  Psychology, Health & Medicine.2022; 27(10): 2246.     CrossRef
• Cortical surface variation in individuals with excessive smartphone use
  Dusan Hirjak, Gudrun M. Henemann, Mike M. Schmitgen, Larissa Götz, Nadine D. Wolf, Katharina M. Kubera, Fabio Sambataro, Tagrid Leménager, Julian Koenig, Robert Christian Wolf
  Developmental Neurobiology.2022; 82(4): 277.     CrossRef
• Association of Smartphone Use With Body Image Distortion and Weight Loss Behaviors in Korean Adolescents
  Sohyeon Kwon, Rockli Kim, Jong-Tae Lee, Jinho Kim, Sunmi Song, Seongcheol Kim, Hannah Oh
  JAMA Network Open.2022; 5(5): e2213237.     CrossRef
• Impact of Digital Literacy and Problematic Smartphone Use on Life Satisfaction: Comparing Pre- and Post-COVID-19 Pandemic
  Busra Taskin, Chiho Ok
  European Journal of Investigation in Health, Psychology and Education.2022; 12(9): 1311.     CrossRef
• Combined Effects of Smartphone Overdependence and Stress on Depression and Suicide-Related Behaviors among High School Students
  Hyesun Kim
  Healthcare.2022; 10(9): 1671.     CrossRef
• Smartphone Usage before and during COVID-19: A Comparative Study Based on Objective Recording of Usage Data
  Khansa Chemnad, Sameha Alshakhsi, Mohamed Basel Almourad, Majid Altuwairiqi, Keith Phalp, Raian Ali
  Informatics.2022; 9(4): 98.     CrossRef
• Excessive Smartphone Use Is Associated With Health Problems in Adolescents and Young Adults
  Yehuda Wacks, Aviv M. Weinstein
  Frontiers in Psychiatry.2021;[Epub]     CrossRef
• Fatores relacionados à dependência do smartphone em adolescentes de uma região do Nordeste brasileiro
  Paula Pessoa de Brito Nunes, Ana Paula Vasconcellos Abdon, Claudiana Batista de Brito, Francisco Valter Miranda Silva, Ionara Conceição Araújo Santos, Daniele de Queiroz Martins, Phelipe Maia Fonseca Meira, Mirna Albuquerque Frota
  Ciência & Saúde Coletiva.2021; 26(7): 2749.     CrossRef
• Excessive and Problematic Smartphone Use and Poor Mental Health in Adolescents
  Young Gyu Cho
  Korean Journal of Family Medicine.2020; 41(2): 73.     CrossRef

Background
Serum-ferritin levels may be associated with psychiatric symptoms among the elderly; however, this association has not been extensively studied. The aim of this study was to evaluate the association between serumferritin levels and mental health issues in older Koreans.
Methods
This cross-sectional study included large-scale national data from the Korea National Health and Nutrition Examination Survey 2010–2012. In total, 1,802 older Koreans (≥65 years old) were included. The assessed psychiatric symptoms included short sleep duration, stress, depressed mood, and suicidal ideation. Any association between serum-ferritin levels and mental health issues according to sex was examined using logistic regression analysis.
Results
The prevalence of short sleep duration, stress, depressed mood, and suicidal ideation was 50.9%, 21.7%, 18.2%, and 22.5%, respectively. In men, suicidal ideation decreased with increased serum-ferritin levels after multivariate adjustment for sociodemographic and lifestyle factors and comorbidities. The odds ratios (OR) and 95% confidence interval (CI) of suicidal ideation by quartiles of serum-ferritin level were 1 (reference), 1.132 (95% CI, 0.569–2.252), 0.453 (95% CI, 0.217–0.945), and 0.608 (95% CI, 0.295–1.253), respectively, (P for trend=0.039). In women, no trend was observed. However, compared to the lowest quartile, short sleep duration (<7 h) and stress perception were significantly decreased in the third quartile, with odds ratios of 0.601 (95% CI, 0.461–0.888), and 0.606 (95% CI, 0.386–0.952), respectively.
Conclusion
Moderate serum-ferritin levels were associated with decreased risk for suicide ideation in men, and were associated with decreased short sleep duration and stress perception in women.

Citations

• Association between suicide attempts and anemia in late-life depression inpatients
  Jie Li, Lan Wang, Ziyi Wang, Fengxue Zhao, Yadi Sun, Ying Lu, Lei Yang
  BMC Geriatrics.2024;[Epub]     CrossRef
• Sleep quality and Laboratory Findings in Patients with Varicose Vein Leg Pain
  Acır Ibrahim, Atay Zeynep Vildan Okudan , Atay Mehmet , Yayla Vildan
  Journal of Neuroscience and Neurological Disorders.2023; 7(1): 022.     CrossRef
• Alteration of Inflammatory Parameters and Psychological Post-Traumatic Syndrome in Long-COVID Patients
  Irma Clemente, Gaia Sinatti, Antonio Cirella, Silvano Junior Santini, Clara Balsano
  International Journal of Environmental Research and Public Health.2022; 19(12): 7103.     CrossRef
• Psychological and Cognitive Effects of Long COVID: A Narrative Review Focusing on the Assessment and Rehabilitative Approach
  Rosaria De Luca, Mirjam Bonanno, Rocco Salvatore Calabrò
  Journal of Clinical Medicine.2022; 11(21): 6554.     CrossRef
• Suicidal Ideation in Major Depressed Individuals: Role of Type D Personality
  Mokhtar Abdelhakim Laoufi, Benjamin Wacquier, Tristan Lartigolle, Gwenolé Loas, Matthieu Hein
  Journal of Clinical Medicine.2022; 11(22): 6611.     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.

Citations

• Investigating Social Proliferation in Korean College Students’ Smoking Perceptions and Behaviors
  YoungJu Shin, Yu Lu, Rebecca Leach
  Western Journal of Communication.2025; 89(1): 46.     CrossRef
• Association of low employment quality with cigarette smoking, smoking initiation, and smoking cessation: A 16-year longitudinal study in South Korea
  Seong-Uk Baek, Yu-Min Lee, Jong-Uk Won, Jin-Ha Yoon
  Social Science & Medicine.2025; 366: 117629.     CrossRef
• Blood eosinophil count and treatment patterns of chronic obstructive pulmonary disease patients in South Korea using real-world data
  Chin Kook Rhee, Yu-Fan Ho, Sumitra Shantakumar, Tim Holbrook, Yein Nam, Kwang‑Ha Yoo
  The Korean Journal of Internal Medicine.2025; 40(1): 78.     CrossRef
• Radiological Changes in Chest Computed Tomography Findings of School Cafeteria Workers: A Comparative Study With Age-matched Controls
  Jung Hee Hong, Jin Young Kim, Kiook Baek
  Safety and Health at Work.2025;[Epub]     CrossRef
• Low household income increases the risk of tuberculosis recurrence: a retrospective nationwide cohort study in South Korea
  C. Chung, D. Jeong, H. Sohn, H. Choi, Y.A. Kang
  Public Health.2024; 226: 228.     CrossRef
• Parent–Offspring Associations of Ideal Cardiovascular Health Metrics: Findings From the 2014 to 2021 Korea National Health and Nutrition Examination Survey
  Manh Thang Hoang, Sun Jae Jung, Hokyou Lee, Hyeon Chang Kim
  Journal of the American Heart Association.2024;[Epub]     CrossRef
• Forecasting the future prevalence of inflammatory bowel disease in Korea through 2048: an epidemiologic study employing autoregressive integrated moving average models
  Ji Eun Kim, Shin Ju Oh, Chang Kyun Lee
  Journal of Gastroenterology and Hepatology.2024; 39(5): 836.     CrossRef
• Cancer Risk Following Smoking Cessation in Korea
  Eunjung Park, Hee-Yeon Kang, Min Kyung Lim, Byungmi Kim, Jin-Kyoung Oh
  JAMA Network Open.2024; 7(2): e2354958.     CrossRef
• Effectiveness of digital tools for smoking cessation in Asian countries: a systematic review
  Khang Wen Goh, Long Chiau Ming, Yaser Mohammed Al-Worafi, Ching Siang Tan, Andi Hermansyah, Inayat Ur Rehman, Zahid Ali
  Annals of Medicine.2024;[Epub]     CrossRef
• Association Between Temporary Employment and Current Smoking and Change in Smoking Behaviors: A Prospective Cohort Study From South Korea (2009–2018)
  Seong-Uk Baek, Min-Seok Kim, Myeong-Hun Lim, Taeyeon Kim, Jin-Ha Yoon, Yu-Min Lee, Jong-Uk Won
  Journal of Epidemiology.2024; 34(10): 459.     CrossRef
• Combined effects of smoking and alcohol consumption on the risk of liver cancer according to metabolic syndrome: A nested case–control study in South Korea
  Thi Tra Bui, Eunjung Park, Hee‐Yeon Kang, Jin‐Kyoung Oh
  International Journal of Cancer.2024; 155(4): 654.     CrossRef
• Development of a Risk Score to Predict Short-term Smoking Relapse Following an Inpatient Smoking Cessation Intervention
  Hwang Sik Shin, Yoon Hyung Park, Sung Soo Lee, Yong Jin Cho, Jun Tack Kwon, Youngs Chang, Mee-Ri Lee, Young Hwangbo
  Asia Pacific Journal of Public Health.2024; 36(4): 329.     CrossRef
• Components of the Chronic Obstructive Pulmonary Disease Assessment Test Associated with the Exacerbation of Severe Chronic Obstructive Pulmonary Disease Patients
  Na Young Kim, Junhee Han, Yong Il Hwang, Yong Bum Park, Seoung Ju Park, Jimyung Park, Ki-Suck Jung, Kwang Ha Yoo, Jin Hwa Lee, Chang Youl Lee
  Respiration.2024; 103(6): 326.     CrossRef
• Substances use among a sample health care workers in Iran: prevalence, pattern of use and gender differences
  Fahimeh Mohseni, Fariba Zare, Behzad Garmabi, Alireza Azizi, Seyed Mohammad Mirrezaie
  Journal of Substance Use.2024; : 1.     CrossRef
• Impact of electronic cigarette use on the increased risk of diabetes: the Korean Community Health Survey
  Wonseok Jeong, Seungju Kim
  Epidemiology and Health.2024; 46: e2024029.     CrossRef
• Unveiling the Impact of Smokers’ Self-Construals on the Effectiveness of Smoking Cessation Campaigns: A Comparative Analysis of E-Cigarettes and Combustible Cigarettes
  Dong Hoo Kim, Ji Mi Hong
  International Journal of Public Health.2024;[Epub]     CrossRef
• Sex differences in age-varying trends of depressive symptoms, substance use, and their associations among South Korean adults: A Time-Varying Effect Modeling (TVEM) analysis of a nationwide sample
  Hanjoo Kim
  Journal of Affective Disorders.2024; 361: 596.     CrossRef
• Assessment of Epidemiological Data and Surveillance in Korea Substance Use Research: Insights and Future Directions
  Meekang Sung, Vaughan W. Rees, Hannah Lee, Mohammad S. Jalali
  Journal of Preventive Medicine and Public Health.2024; 57(4): 307.     CrossRef
• Relationship between smoking experience and risk of suicide mortality in South Korean adults: A nationwide population-based retrospective cohort study
  Hyo Jin Park, Byoungduck Han, Bongseong Kim, Kyungdo Han, Seohwan Kim, Hyunjoo Kim, Kyoungjoon Youn, Hyun Jin Park, Yong-kyun Roh, Youn Seon Choi, Ga Eun Nam, Seon Mee Kim
  Journal of Affective Disorders.2024; 367: 67.     CrossRef
• Resistance to anti-smoking messages related to the higher smoking stigma of Korean female smokers
  Seung-Hyuk Ha, Gi-Eun Lee, Jang-Sun Hwang, Jang-Han Lee
  Frontiers in Psychology.2024;[Epub]     CrossRef
• Relationship between perception of body image on obesity and smoking status by age group in women: Findings of a seven-year Korean National Survey
  Hye Jung Hwang⁺, Youngmee Kim⁺, Won-Kyung Cho
  Tobacco Induced Diseases.2024; 22(October): 1.     CrossRef
• Association of food insecurity with the use of tobacco products and urine cotinine-measured smoking intensity: evidence from a population-based study in South Korea, 2019–2021
  Seong-Uk Baek, Yu-Min Lee, Jong-Uk Won, Jin-Ha Yoon
  Tobacco Control.2024; : tc-2024-058754.     CrossRef
• Tobacco Use in Korea: Current Epidemiology and Public Health Issues
  Jong Eun Park, Woo Min Jeong, Ye Jin Choi, So Young Kim, Kyoung Eun Yeob, Jong Hyock Park
  Journal of Korean Medical Science.2024;[Epub]     CrossRef
• Age-period-cohort analysis of smoking prevalence trends among career military personnel in South Korea
  Sunju Jung, Heewon Kang, Sung-il Cho
  Tobacco Induced Diseases.2024; 22(December): 1.     CrossRef
• Motivational and behavioral mechanisms underlying generalized health risking behaviors during the COVID-19 pandemic in smokers
  Jiwon Park, Seungmin Lee, Xiaosi Gu, Vincenzo G. Fiore, Sunhae Sul, Dongil Chung
  Scientific Reports.2024;[Epub]     CrossRef
• Association Between Lifestyle Behavior and Health-Related Productivity Loss Among Korean Employees
  Young Joong Kang, Mo-Yeol Kang
  Journal of Occupational & Environmental Medicine.2024; 66(12): 1009.     CrossRef
• Sex differences in the impact of diabetes mellitus on tuberculosis recurrence: a retrospective national cohort study
  Dararat Eksombatchai, Dawoon Jeong, Jeongha Mok, Doosoo Jeon, Hee-Yeon Kang, Hee Jin Kim, Hee-Sun Kim, Hongjo Choi, Young Ae Kang
  International Journal of Infectious Diseases.2023; 127: 1.     CrossRef
• Associations between precarious employment and smoking and regular exercise: Results from a Korean longitudinal panel study from 2005 to 2020
  Seong-Uk Baek, Jin-Ha Yoon, Jong-Uk Won
  Preventive Medicine.2023; 168: 107420.     CrossRef
• Where There’s Smoke, There’s Fire
  Nosheen Reza
  JACC: Heart Failure.2023; 11(3): 288.     CrossRef
• Factors associated with successful smoking cessation in men with or without cardiovascular disease or cancer: Nationwide Korean population analysis
  Youngmee Kim, Won-Kyung Cho
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• Association between the dual use of electronic and conventional cigarettes and NAFLD status in Korean men
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