1.Cohort profile: a nationwide retrospective cohort of mortality in people living with HIV in Korea, 1985-2020
Taeyoung KIM ; Yoonhee JUNG ; Koun KIM ; Jung Wan PARK ; Jeonghee YU ; Sung-il CHO
Epidemiology and Health 2025;47(1):e2025002-
		                        		
		                        			
		                        			 The increasing number of people living with human immunodeficiency virus (HIV) in Korea has prompted interest in using the national surveillance system as a database for studying their health. To investigate the relationships between socio-demographic and epidemiological characteristics and mortality rates, a nationwide retrospective cohort was formed by integrating surveillance data with the Cause of Death Statistics from Statistics Korea. This integration included incidence reports, epidemiological investigations, and death reports from the surveillance data, enriched with detailed mortality information from the Cause of Death data. The cohort comprised 17,199 adult Korean individuals diagnosed with HIV infection from 1985 to 2020. By the end of 2020, 2,721 of these individuals were confirmed deceased. The sex ratio of the study participants was 14.3:1.0 (male to female), with 78.2% being under 50 years old at the time of diagnosis. Sexual contact was identified as the primary transmission route, accounting for 75.7% of cases. HIV disease emerged as the predominant cause of death, representing two-thirds (1,817 of 2,721) of the fatalities, followed by injuries and trauma, malignancies, and cardiovascular diseases. Recommendations for further cohort studies may be submitted to the Korea Disease Control and Prevention Agency. 
		                        		
		                        		
		                        		
		                        	
2.Cohort profile: a nationwide retrospective cohort of mortality in people living with HIV in Korea, 1985-2020
Taeyoung KIM ; Yoonhee JUNG ; Koun KIM ; Jung Wan PARK ; Jeonghee YU ; Sung-il CHO
Epidemiology and Health 2025;47(1):e2025002-
		                        		
		                        			
		                        			 The increasing number of people living with human immunodeficiency virus (HIV) in Korea has prompted interest in using the national surveillance system as a database for studying their health. To investigate the relationships between socio-demographic and epidemiological characteristics and mortality rates, a nationwide retrospective cohort was formed by integrating surveillance data with the Cause of Death Statistics from Statistics Korea. This integration included incidence reports, epidemiological investigations, and death reports from the surveillance data, enriched with detailed mortality information from the Cause of Death data. The cohort comprised 17,199 adult Korean individuals diagnosed with HIV infection from 1985 to 2020. By the end of 2020, 2,721 of these individuals were confirmed deceased. The sex ratio of the study participants was 14.3:1.0 (male to female), with 78.2% being under 50 years old at the time of diagnosis. Sexual contact was identified as the primary transmission route, accounting for 75.7% of cases. HIV disease emerged as the predominant cause of death, representing two-thirds (1,817 of 2,721) of the fatalities, followed by injuries and trauma, malignancies, and cardiovascular diseases. Recommendations for further cohort studies may be submitted to the Korea Disease Control and Prevention Agency. 
		                        		
		                        		
		                        		
		                        	
3.Cohort profile: a nationwide retrospective cohort of mortality in people living with HIV in Korea, 1985-2020
Taeyoung KIM ; Yoonhee JUNG ; Koun KIM ; Jung Wan PARK ; Jeonghee YU ; Sung-il CHO
Epidemiology and Health 2025;47(1):e2025002-
		                        		
		                        			
		                        			 The increasing number of people living with human immunodeficiency virus (HIV) in Korea has prompted interest in using the national surveillance system as a database for studying their health. To investigate the relationships between socio-demographic and epidemiological characteristics and mortality rates, a nationwide retrospective cohort was formed by integrating surveillance data with the Cause of Death Statistics from Statistics Korea. This integration included incidence reports, epidemiological investigations, and death reports from the surveillance data, enriched with detailed mortality information from the Cause of Death data. The cohort comprised 17,199 adult Korean individuals diagnosed with HIV infection from 1985 to 2020. By the end of 2020, 2,721 of these individuals were confirmed deceased. The sex ratio of the study participants was 14.3:1.0 (male to female), with 78.2% being under 50 years old at the time of diagnosis. Sexual contact was identified as the primary transmission route, accounting for 75.7% of cases. HIV disease emerged as the predominant cause of death, representing two-thirds (1,817 of 2,721) of the fatalities, followed by injuries and trauma, malignancies, and cardiovascular diseases. Recommendations for further cohort studies may be submitted to the Korea Disease Control and Prevention Agency. 
		                        		
		                        		
		                        		
		                        	
4.Cohort profile: a nationwide retrospective cohort of mortality in people living with HIV in Korea, 1985-2020
Taeyoung KIM ; Yoonhee JUNG ; Koun KIM ; Jung Wan PARK ; Jeonghee YU ; Sung-il CHO
Epidemiology and Health 2025;47(1):e2025002-
		                        		
		                        			
		                        			 The increasing number of people living with human immunodeficiency virus (HIV) in Korea has prompted interest in using the national surveillance system as a database for studying their health. To investigate the relationships between socio-demographic and epidemiological characteristics and mortality rates, a nationwide retrospective cohort was formed by integrating surveillance data with the Cause of Death Statistics from Statistics Korea. This integration included incidence reports, epidemiological investigations, and death reports from the surveillance data, enriched with detailed mortality information from the Cause of Death data. The cohort comprised 17,199 adult Korean individuals diagnosed with HIV infection from 1985 to 2020. By the end of 2020, 2,721 of these individuals were confirmed deceased. The sex ratio of the study participants was 14.3:1.0 (male to female), with 78.2% being under 50 years old at the time of diagnosis. Sexual contact was identified as the primary transmission route, accounting for 75.7% of cases. HIV disease emerged as the predominant cause of death, representing two-thirds (1,817 of 2,721) of the fatalities, followed by injuries and trauma, malignancies, and cardiovascular diseases. Recommendations for further cohort studies may be submitted to the Korea Disease Control and Prevention Agency. 
		                        		
		                        		
		                        		
		                        	
5.Safety and Effectiveness of Dulaglutide in the Treatment of Type 2 Diabetes Mellitus: A Korean Real-World Post-Marketing Study
Jeonghee HAN ; Woo Je LEE ; Kyu Yeon HUR ; Jae Hyoung CHO ; Byung Wan LEE ; Cheol-Young PARK
Diabetes & Metabolism Journal 2024;48(3):418-428
		                        		
		                        			 Background:
		                        			To investigate the real-world safety and effectiveness of dulaglutide in Korean adults with type 2 diabetes mellitus (T2DM). 
		                        		
		                        			Methods:
		                        			This was a real-world, prospective, non-interventional post-marketing safety study conducted from May 26, 2015 to May 25, 2021 at 85 Korean healthcare centers using electronic case data. Data on patients using dulaglutide 0.75 mg/0.5 mL or the dulaglutide 1.5 mg/0.5 mL single-use pens were collected and pooled. The primary objective was to report the frequency and proportion of adverse and serious adverse events that occurred. The secondary objective was to monitor the effectiveness of dulaglutide at 12 and 24 weeks by evaluating changes in glycosylated hemoglobin (HbA1c ), fasting plasma glucose, and body weight. 
		                        		
		                        			Results:
		                        			Data were collected from 3,067 subjects, and 3,022 subjects who received ≥1 dose (of any strength) of dulaglutide were included in the safety analysis set (53% female, mean age 56 years; diabetes duration 11.2 years, mean HbA1c 8.8%). The number of adverse events reported was 819; of these, 68 (8.3%) were serious adverse events. One death was reported. Adverse events were mostly mild in severity; 60.81% of adverse events were considered related to dulaglutide. This study was completed by 72.73% (2,198/3,022) of subjects. At 12/24 weeks there were significant (P<0.0001) reductions from baseline in least-squares mean HbA1c (0.96%/0.95%), fasting blood glucose (26.24/24.43 mg/dL), and body weight (0.75/1.21 kg). 
		                        		
		                        			Conclusion
		                        			Dulaglutide was generally well tolerated and effective in real-world Korean individuals with T2DM. The results from this study contribute to the body of evidence for dulaglutide use in this population. 
		                        		
		                        		
		                        		
		                        	
6.Surgical Outcomes of Cervical Esophageal Cancer: A SingleCenter Experience
Yoonseo LEE ; Jeonghee YUN ; Yeong Jeong JEON ; Junghee LEE ; Seong Yong PARK ; Jong Ho CHO ; Hong Kwan KIM ; Yong Soo CHOI ; Young Mog SHIM
Journal of Chest Surgery 2024;57(1):62-69
		                        		
		                        			 Background:
		                        			Cervical esophageal cancer is a rare malignancy that requires specialized care. While definitive chemoradiation is the standard treatment approach, surgery remains a valuable option for certain patients. This study examined the surgical outcomes of patients with cervical esophageal cancer. 
		                        		
		                        			Methods:
		                        			The study involved a retrospective review and analysis of 24 patients with cervical esophageal cancer. These patients underwent surgical resection between September 1994 and December 2018. 
		                        		
		                        			Results:
		                        			The mean age of the patients was 61.0±10.2 years, and 22 (91.7%) of them were male. Furthermore, 21 patients (87.5%) had T3 or T4 tumors, and 11 (45.8%) exhibited lymph node metastasis. Gastric pull-up with esophagectomy was performed for 19 patients (79.2%), while 5 (20.8%) underwent free jejunal graft with cervical esophagectomy.The 30-day operative mortality rate was 8.3%. During the follow-up period, complications included leakage at the anastomotic site in 9 cases (37.5%) and graft necrosis of the gastric conduit in 1 case. Progression to oral feeding was achieved in 20 patients (83.3%). Fifteen patients (62.5%) displayed tumor recurrence. The median time from surgery to recurrence was 10.5 months, and the 1-year recurrence rate was 73.3%. The 1-year and 3-year survival rates were 75% and 33.3%, respectively, with a median survival period of 17 months. 
		                        		
		                        			Conclusion
		                        			Patients with cervical esophageal cancer who underwent surgical resection faced unfavorable outcomes and relatively poor survival. The selection of cases and decision to proceed with surgery should be made cautiously, considering the risk of severe complications. 
		                        		
		                        		
		                        		
		                        	
7.Outcomes of Completion Lobectomy for Locoregional Recurrence after Sublobar Resection in Patients with Non-small Cell Lung Cancer
Cho Eun LEE ; Jeonghee YUN ; Yeong Jeong JEON ; Junghee LEE ; Seong Yong PARK ; Jong Ho CHO ; Hong Kwan KIM ; Yong Soo CHOI ; Jhingook KIM ; Young Mog SHIM
Journal of Chest Surgery 2024;57(2):128-135
		                        		
		                        			 Background:
		                        			This retrospective study aimed to determine the treatment patterns and the surgical and oncologic outcomes after completion lobectomy (CL) in patients with locoregionally recurrent stage I non-small cell lung cancer (NSCLC) who previously underwent sublobar resection. 
		                        		
		                        			Methods:
		                        			Data from 36 patients who initially underwent sublobar resection for clinical, pathological stage IA NSCLC and experienced locoregional recurrence between 2008 and 2016 were analyzed. 
		                        		
		                        			Results:
		                        			Thirty-six (3.6%) of 1,003 patients who underwent sublobar resection for NSCLC experienced locoregional recurrence. The patients’ median age was 66.5 (range, 44–77) years at the initial operation, and 28 (77.8%) patients were men. Six (16.7%) patients underwent segmentectomy and 30 (83.3%) underwent wedge resection as the initial operation.The median follow-up from the initial operation was 56 (range, 9–150) months. Ten (27.8%) patients underwent CL, 22 (61.1%) underwent non-surgical treatments (chemotherapy, radiation, concurrent chemoradiation therapy), and 4 (11.1%) did not receive treatment or were lost to follow-up after recurrence. Patients who underwent CL experienced no significant complications or deaths. The median follow-up time after CL was 64.5 (range, 19–93) months. The 5-year overall survival (OS) and post-recurrence survival (PRS) were higher in the surgical group than in the non-surgical (p<0.001) and no-treatment groups (p<0.001). 
		                        		
		                        			Conclusion
		                        			CL is a technically demanding but safe procedure for locoregionally recurrent stage I NSCLC after sublobar resection. Patients who underwent CL had better OS and PRS than patients who underwent non-surgical treatments or no treatments; however, a larger cohort study and long-term surveillance are necessary. 
		                        		
		                        		
		                        		
		                        	
8.Sublobar Resection versus Stereotactic Body Radiation Therapy for Clinical Stage I Non–Small Cell Lung Cancer: A Study Using Data from the Korean Nationwide Lung Cancer Registry
Jeonghee YUN ; Jong Ho CHO ; Tae Hee HONG ; Kyungmi YANG ; Yong Chan AHN ; Hong Kwan KIM ; ;
Cancer Research and Treatment 2023;55(4):1171-1180
		                        		
		                        			 Purpose:
		                        			Stereotactic body radiotherapy (SBRT) had been increasingly recognized as a favorable alternative to surgical resection in patients with high risk for surgery. This study compared survival outcomes between sublobar resection (SLR) and SBRT for clinical stage I non–small cell lung cancer (NSCLC). 
		                        		
		                        			Materials and Methods:
		                        			Data were obtained from the Korean Association of Lung Cancer Registry, a sampled nationwide database. This study retrospectively reviewed 382 patients with clinical stage I NSCLC who underwent curative SLR or SBRT from 2014 to 2016. 
		                        		
		                        			Results:
		                        			Of the patients, 43 and 339 underwent SBRT and SLR, respectively. Patients in the SBRT group were older and had worse pulmonary function. The 3-year overall survival (OS) rate was significantly better in the SLR group compared with the SBRT group (86.6% vs. 57%, log-rank p < 0.001). However, after adjusting for age, sex, tumor size, pulmonary function, histology, smoking history, and adjuvant therapy, treatment modality was not an independent prognostic factor for survival (hazard ratio, 0.99; 95% confidence interval, 0.43 to 2.77; p=0.974). We performed subgroup analysis in the following high-risk populations: patients who were older than 75 years; patients who were older than 70 years and had diffusing capacity of lung for carbon monoxide ≤ 80%. In each subgroup, there were no differences in OS and recurrence-free survival between patients who underwent SLR and those who received SBRT. 
		                        		
		                        			Conclusion
		                        			In our study, there were no significant differences in terms of survival or recurrence between SBRT and SLR in medically compromised stage I NSCLC patients. Our findings suggest that SBRT could be considered as a potential treatment option for selected patients. 
		                        		
		                        		
		                        		
		                        	
9.The Relationships between Rural Elderly’s Suicide Literacy, Suicide Stigma and Coping Advice for Suicide Prevention: The Moderated Mediation Effect of Social Expectations for Experiencing Negative Emotions
Soontae AN ; Hannah LEE ; Jeonghee CHO
Journal of Korean Academy of Community Health Nursing 2022;33(2):164-174
		                        		
		                        			 Purpose:
		                        			The purpose of this study is to examine the effects of the rural elderly suicide literacy level upon suicide stigma and coping advice with suicidal crises (recommending professional help for a suicidal person). In particular, this study investigates the role of cultural norms (perceived social expectations for the experience of negative emotions) on suicide stigma and coping ability. 
		                        		
		                        			Methods:
		                        			A survey was conducted addressing elderly people (N=119) living in rural areas. Regression analysis using SPSS PROCESS macro was used to examine the relationships among the key variables. 
		                        		
		                        			Results:
		                        			Participants with higher suicide literacy showed lower suicide stigma, and this perception had a significant effect on enhancing their coping advice with suicidal crises. Also, perceived social expectations significantly influenced the relationship between suicide stigma and coping advice. With lower levels of social expectations, the mediating effect of suicide stigma on the relationship between suicide literacy and recommending professional help did not exist whereas the indirect effect was significant when it pertained to high levels of social expectations. 
		                        		
		                        			Conclusion
		                        			This result signifies that suicide stigma serves as a barrier deterring Koreans from reaching out for professional help regarding their mental health. Moreover, these findings underscore the importance of cultural psychological factors such as perceived social expectations in terms of developing suicide prevention strategies. 
		                        		
		                        		
		                        		
		                        	
10.Genetic Risk Score, Combined Lifestyle Factors and Risk of Colorectal Cancer
Young Ae CHO ; Jeonghee LEE ; Jae Hwan OH ; Hee Jin CHANG ; Dae Kyung SOHN ; Aesun SHIN ; Jeongseon KIM
Cancer Research and Treatment 2019;51(3):1033-1040
		                        		
		                        			
		                        			PURPOSE: Both genetic and lifestyle factors contribute to the risk of colorectal cancer, but each individual factor has a limited effect. Therefore, we investigated the association between colorectal cancer and the combined effects of genetic factors or/and lifestyle risk factors. MATERIALS AND METHODS: In a case-control study of 632 colorectal cancer patients and 1,295 healthy controls, we quantified the genetic risk score for colorectal cancer using 13 polymorphisms. Furthermore, we determined a combined lifestyle risk score including obesity, physical activity, smoking, alcohol consumption, and dietary inflammatory index. The associations between colorectal cancer and risk score using these factors were examined using a logistic regression model. RESULTS: Higher genetic risk scores were associated with an increased risk of colorectal cancer (odds ratio [OR], 2.57; 95% confidence interval [CI], 1.89 to 3.49 for the highest tertile vs. lowest tertile). Among the modifiable factors, previous body mass index, physical inactivity, heavy alcohol consumption, and a high inflammatory diet were associated with an increased risk of colorectal cancer. A higher lifestyle risk score was associated with an increased risk of colorectal cancer (OR, 5.82; 95% CI, 4.02 to 8.44 for the highest tertile vs. lowest tertile). This association was similar in each genetic risk category. CONCLUSION: Adherence to a healthy lifestyle is associated with a substantially reduced risk of colorectal cancer regardless of individuals’ genetic risk.
		                        		
		                        		
		                        		
		                        			Alcohol Drinking
		                        			;
		                        		
		                        			Body Mass Index
		                        			;
		                        		
		                        			Case-Control Studies
		                        			;
		                        		
		                        			Colorectal Neoplasms
		                        			;
		                        		
		                        			Diet
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Life Style
		                        			;
		                        		
		                        			Logistic Models
		                        			;
		                        		
		                        			Motor Activity
		                        			;
		                        		
		                        			Obesity
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Smoke
		                        			;
		                        		
		                        			Smoking
		                        			
		                        		
		                        	
            
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