1.Clinical Outcomes of Surgery after Neoadjuvant Chemotherapy in Locally Advanced Pancreatic Ductal Adenocarcinoma
Yoo Na LEE ; Min Kyu SUNG ; Dae Wook HWANG ; Yejong PARK ; Bong Jun KWAK ; Woohyung LEE ; Ki Byung SONG ; Jae Hoon LEE ; Changhoon YOO ; Kyu-Pyo KIM ; Heung-Moon CHANG ; Baek-Yeol RYOO ; Song Cheol KIM
Cancer Research and Treatment 2024;56(4):1240-1251
		                        		
		                        			 Purpose:
		                        			Clinical outcomes of surgery after neoadjuvant chemotherapy have not been investigated for locally advanced pancreatic cancer (LAPC), despite well-established outcomes in borderline resectable pancreatic cancer (BRPC). This study aimed to investigate the clinical outcomes of patients with LAPC who underwent curative resection following neoadjuvant chemotherapy. 
		                        		
		                        			Materials and Methods:
		                        			We retrospectively reviewed the records of patients diagnosed with pancreatic adenocarcinoma between January 2017 and December 2020. 
		                        		
		                        			Results:
		                        			Among 1,358 patients, 260 underwent surgery following neoadjuvant chemotherapy. Among 356 LAPC patients, 98 (27.5%) and 147 (35.1%) of 418 BRPC patients underwent surgery after neoadjuvant chemotherapy. Compared to resectable pancreatic cancer (resectable PC) with upfront surgery, both LAPC and BRPC exhibited higher rates of venous resection (28.6% vs. 49.0% vs. 4.0%), arterial resection (30.6% vs. 6.8% vs. 0.5%) and greater estimated blood loss (260.5 vs. 213.1 vs. 70.4 mL). However, hospital stay, readmission rates, and postoperative pancreatic fistula rates (grade B or C) did not differ significantly between LAPC, BRPC, and resectable PC. Overall and relapse-free survival did not differ significantly between LAPC and BRPC patients. The median overall survival was 37.3 months for LAPC and 37.0 months for BRPC. The median relapse-free survival was 22.7 months for LAPC and 26.0 months for BRPC. 
		                        		
		                        			Conclusion
		                        			Overall survival time and postoperative complications in LAPC patients who underwent curative resection following neoadjuvant chemotherapy showed similar results to those of BRPC patients. Further research is needed to identify specific sub-populations of LAPC patients who benefit most from conversion surgery and to minimize postoperative complications. 
		                        		
		                        		
		                        		
		                        	
2.Hypofractionated radiation therapy combined with androgen deprivation therapy for clinically node-positive prostate cancer
Tae Hoon LEE ; Hongryull PYO ; Gyu Sang YOO ; Seong Soo JEON ; Seong Il SEO ; Byong Chang JEONG ; Hwang Gyun JEON ; Hyun Hwan SUNG ; Minyong KANG ; Wan SONG ; Jae Hoon CHUNG ; Bong Kyung BAE ; Won PARK
Radiation Oncology Journal 2024;42(2):139-147
		                        		
		                        			 Purpose:
		                        			This study aimed to analyze the treatment outcomes of combined definitive radiation therapy (RT) and androgen deprivation therapy (ADT) for clinically node-positive prostate cancer. 
		                        		
		                        			Materials and Methods:
		                        			Medical records of 60 patients with clinically suspected metastatic lymph nodes on radiological examination were retrospectively analyzed. Eight patients (13.3%) were suspected to have metastatic common iliac or para-aortic lymph nodes. All patients underwent definitive RT with a dose fractionation of 70 Gy in 28 fractions. ADT was initiated 2–3 months before RT and continued for at least 2 years. Biochemical failure rate (BFR), clinical failure rate (CFR), overall survival (OS), and prostate cancer-specific survival (PCSS) were calculated, and genitourinary and gastrointestinal adverse events were recorded. 
		                        		
		                        			Results:
		                        			The median follow-up period was 5.47 years. The 5-year BFR, CFR, OS, and PCSS rates were 19.1%, 11.3%, 89.0%, and 98.2%, respectively. The median duration of ADT was 2.30 years. BFR and CFR increased after 3 years, and 11 out of 14 biochemical failures occurred after the cessation of ADT. Grade 2 and beyond late genitourinary and gastrointestinal toxicity rates were 5.0% and 13.3%, respectively. However, only two grade 3 adverse events were reported, and no grade 4–5 adverse events were reported. Patients with non-regional lymph node metastases did not have worse BFR, CFR, or adverse event rates. 
		                        		
		                        			Conclusion
		                        			This study reported the efficacy and tolerable toxicity of hypofractionated definitive RT combined with ADT for clinically node-positive prostate cancer. Additionally, selected patients with adjacent non-regional lymph node metastases might be able to undergo definitive RT combined with ADT. 
		                        		
		                        		
		                        		
		                        	
3.Prevalence of Mental Disorders and Associated Factors in Korean Adults: National Mental Health Survey of Korea 2021
Soo Jung RIM ; Bong-Jin HAHM ; Su Jeong SEONG ; Jee Eun PARK ; Sung Man CHANG ; Byung-Soo KIM ; Hyonggin AN ; Hong Jin JEON ; Jin Pyo HONG ; Subin PARK
Psychiatry Investigation 2023;20(3):262-272
		                        		
		                        			 Objective:
		                        			Mental health is a global concern and needs to be studied more closely. We aimed to estimate the prevalence of mental disorders and their associated factors among the general population in Korea. 
		                        		
		                        			Methods:
		                        			The National Mental Health Survey of Korea 2021 was conducted between June 19 and August 31, 2021 and included 13,530 households; 5,511 participants completed the interview (response rate: 40.7%). The lifetime and 12-month diagnosis rates of mental disorders were made using the Korean version of the Composite International Diagnostic Interview 2.1. Factors associated with alcohol use disorder (AUD), nicotine use disorder, depressive disorder, and anxiety disorder were analyzed, and mental health service utilization rates were estimated. 
		                        		
		                        			Results:
		                        			The lifetime prevalence of mental disorders was 27.8%. The 12-month prevalence rates of alcohol use, nicotine use, depressive, and anxiety disorders were 2.6%, 2.7%, 1.7%, and 3.1%, respectively. The risk factors associated with 12-month diagnosis rates were as follows: AUD: sex and age; nicotine use disorder: sex; depressive disorder: marital status and job status; anxiety disorder: sex, marital status, and job status. The 12-month treatment and service utilization rates for 12-month AUD, nicotine use disorder, depressive disorder, and anxiety disorder were 2.6%, 1.1%, 28.2%, and 9.1%, respectively. 
		                        		
		                        			Conclusion
		                        			Approximately 25% of adults in the general population were diagnosed with mental disorders during their lifetime. The treatment rates were substantially low. Future studies on this topic and efforts to increase the mental health treatment rate at a national level are needed. 
		                        		
		                        		
		                        		
		                        	
4.Prevalence of Loneliness and Its Association With Suicidality in the General Population: Results From a Nationwide Survey in Korea
Jimin LEE ; Sung Man CHANG ; Bong-Jin HAHM ; Jee Eun PARK ; Su Jeong SEONG ; Jin Pyo HONG ; Hong Jin JEON ; Hyonggin AN ; Byung-Soo KIM
Journal of Korean Medical Science 2023;38(36):e287-
		                        		
		                        			 Background:
		                        			Although it is known that a substantial proportion of the population experience loneliness, the consequence of loneliness remains unclear by countries and ages.Accordingly, this study aimed to assess the association between loneliness and suicidality in the general population of Korea.Method: A total of 5,511 Koreans aged 18–79 completed a tablet-assisted personal interview using the Korean version of the Composite International Diagnostic Interview and responded to questions about loneliness and lifetime suicidal ideation, plans, and attempts. A logistic regression analysis was used to examine the association between loneliness and suicidality. 
		                        		
		                        			Results:
		                        			Approximately one-third of the Korean general population reported loneliness.Being older, never married, widowed, separated, or divorced, unemployed, and having a parttime job were all significantly related to loneliness. After adjusting for sociodemographic factors, individuals with loneliness were significantly associated with increased suicidal ideation (adjusted odd ratio [aOR], 4.05; 95% confidence interval [CI], 3.36–4.88), suicidal plans (aOR, 4.91; 95% CI, 3.34–7.21), and suicidal attempts (aOR, 4.82; 95% CI, 3.03–7.66). Even after adjusting for sociodemographic factors and mental disorders, suicidality remained statistically significant. Moreover, frequent, moderate-to-severe, and long-term loneliness were all associated with increased ORs for suicidality, regardless of sociodemographic factors and mental disorders. 
		                        		
		                        			Conclusion
		                        			Loneliness was associated with suicidal ideation, plans, and attempts. This study lays the foundation for public health policymakers to establish early intervention and mental health care support for lonely people. 
		                        		
		                        		
		                        		
		                        	
5.Validation of the Patient Health Questionnaire–9 and Patient Health Questionnaire–2 in the General Korean Population
Minah KIM ; Sanghyup JUNG ; Jee Eun PARK ; Jee Hoon SOHN ; Su Jeong SEONG ; Byung-Soo KIM ; Sung Man CHANG ; Jin Pyo HONG ; Bong-Jin HAHM ; Chan-Woo YEOM
Psychiatry Investigation 2023;20(9):853-860
		                        		
		                        			 Objective:
		                        			The Patient Health Questionnaire–9 (PHQ-9) and PHQ-2 have not been validated in the general Korean population. This study aimed to validate and identify the optimal cutoff scores of the PHQ-9 and PHQ-2 in screening for major depression in the general Korean population. 
		                        		
		                        			Methods:
		                        			We used data from 6,022 participants of the Korean Epidemiological Catchment Area Study for Psychiatric Disorders in 2011. Major depression was diagnosed according to the Korean Composite International Diagnostic Interview. Validity, reliability, and receiver operating characteristic curve analyses were performed using the results of the PHQ-9 and Euro Quality of life-5 dimension (EQ-5d). 
		                        		
		                        			Results:
		                        			Of the 6,022 participants, 150 were diagnosed with major depression (2.5%). Both PHQ-9 and PHQ-2 demonstrated relatively high reliability and their scores were highly correlated with the “anxiety/depression” score of the EQ-5d. The optimal cutoff score of the PHQ-9 was 5, with a sensitivity of 89.9%, specificity of 84.1%, positive predictive value (PPV) of 12.6%, negative predictive value (NPV) of 99.7%, positive likelihood ratio (LR+) of 5.6, and negative likelihood ratio (LR-) of 0.12. The optimal cutoff score of the PHQ-2 was 2, with a sensitivity of 85.3%, specificity of 83.2%, PPV of 11.6%, NPV of 99.5%, LR+ of 5.1, and LR- of 0.18. 
		                        		
		                        			Conclusion
		                        			The PHQ-9 and PHQ-2 are valid tools for screening major depression in the general Korean population, with suggested cutoff values of 5 and 2 points, respectively. 
		                        		
		                        		
		                        		
		                        	
6.The Association of Childhood Maltreatment with Adulthood Mental Disorders and Suicidality in Korea: a Nationwide Community Study
Jimin LEE ; Hyerim KIM ; Sung Man CHANG ; Jin Pyo HONG ; Dong-Woo LEE ; Bong-Jin HAHM ; Seong-Jin CHO ; Jong-Ik PARK ; Hong Jin JEON ; Su Jeong SEONG ; Jee Eun PARK ; Byung-Soo KIM
Journal of Korean Medical Science 2021;36(37):e240-
		                        		
		                        			Background:
		                        			Although childhood maltreatment is a known risk factor for adulthood mental health, the impact of different types of childhood maltreatment on mental disorders is not yet clear. This study explored the association of each type of childhood maltreatment with adulthood mental disorders and suicidality in South Korea. 
		                        		
		                        			Methods:
		                        			A total of 5,102 individuals from the general populations over the age of 18 responded to the Korean version of the Composite International Diagnostic Interview and questions about childhood maltreatment (emotional neglect, psychological abuse, physical abuse, and sexual abuse). To evaluate the odds ratio for mental disorders and suicidality associated with each type of childhood maltreatment, we used logistic regression analysis. 
		                        		
		                        			Results:
		                        			About 17.0% of the respondents reported having experienced a type of maltreatment in childhood. According to the type, 9.4% reported physical abuse, 9.3% reported emotional neglect, 7.9% reported psychological abuse, and 3.8% reported sexual abuse. Exposure to each type of childhood maltreatment was associated with most types of mental disorders after adjusting for sociodemographic factors. Each type of childhood maltreatment victim was associated with suicidality (suicidal ideations, suicide plans, and suicide attempts).Dose-response patterns for suicide attempts were observed in all types of victims. Moreover, the respondents who experienced frequent childhood emotional neglect were 14 times more likely to have attempted suicide. 
		                        		
		                        			Conclusion
		                        			Childhood maltreatment was associated with mental health in adulthood.The findings show the need for early detection and intervention of victims of childhood maltreatment to minimize its negative impact on adult mental health.
		                        		
		                        		
		                        		
		                        	
7.The Association of Childhood Maltreatment with Adulthood Mental Disorders and Suicidality in Korea: a Nationwide Community Study
Jimin LEE ; Hyerim KIM ; Sung Man CHANG ; Jin Pyo HONG ; Dong-Woo LEE ; Bong-Jin HAHM ; Seong-Jin CHO ; Jong-Ik PARK ; Hong Jin JEON ; Su Jeong SEONG ; Jee Eun PARK ; Byung-Soo KIM
Journal of Korean Medical Science 2021;36(37):e240-
		                        		
		                        			Background:
		                        			Although childhood maltreatment is a known risk factor for adulthood mental health, the impact of different types of childhood maltreatment on mental disorders is not yet clear. This study explored the association of each type of childhood maltreatment with adulthood mental disorders and suicidality in South Korea. 
		                        		
		                        			Methods:
		                        			A total of 5,102 individuals from the general populations over the age of 18 responded to the Korean version of the Composite International Diagnostic Interview and questions about childhood maltreatment (emotional neglect, psychological abuse, physical abuse, and sexual abuse). To evaluate the odds ratio for mental disorders and suicidality associated with each type of childhood maltreatment, we used logistic regression analysis. 
		                        		
		                        			Results:
		                        			About 17.0% of the respondents reported having experienced a type of maltreatment in childhood. According to the type, 9.4% reported physical abuse, 9.3% reported emotional neglect, 7.9% reported psychological abuse, and 3.8% reported sexual abuse. Exposure to each type of childhood maltreatment was associated with most types of mental disorders after adjusting for sociodemographic factors. Each type of childhood maltreatment victim was associated with suicidality (suicidal ideations, suicide plans, and suicide attempts).Dose-response patterns for suicide attempts were observed in all types of victims. Moreover, the respondents who experienced frequent childhood emotional neglect were 14 times more likely to have attempted suicide. 
		                        		
		                        			Conclusion
		                        			Childhood maltreatment was associated with mental health in adulthood.The findings show the need for early detection and intervention of victims of childhood maltreatment to minimize its negative impact on adult mental health.
		                        		
		                        		
		                        		
		                        	
8.Impacts of Remaining Single above the Mean Marriage Age on Mental Disorders and Suicidality:a Nationwide Study in Korea
Jimin LEE ; Hyerim KIM ; Jungmin WOO ; Sung Man CHANG ; Jin Pyo HONG ; Dong-Woo LEE ; Bong-Jin HAHM ; Seong-Jin CHO ; Jong-Ik PARK ; Hong Jin JEON ; Su Jeong SEONG ; Jee Eun PARK ; Byung-Soo KIM
Journal of Korean Medical Science 2020;35(37):e319-
		                        		
		                        			 Background:
		                        			This study investigated the impact of getting older than the mean marriage age on mental disorders and suicidality among never-married people. 
		                        		
		                        			Methods:
		                        			We performed an epidemiological survey, a nationwide study of mental disorders, in 2016. In this study, a multi-stage cluster sampling was adopted. The Korean version of the Composite International Diagnostic Interview was conducted with 5,102 respondents aged 18 years or above. The associations between never-married status, mental disorders, and suicidality were explored according to whether the mean age of first marriage (men = 32.8 years; women = 30.1 years) had passed. 
		                        		
		                        			Results:
		                        			Never-married status over the mean marriage age was associated with agoraphobia, obsessive–compulsive disorder, mood disorders, and major depressive disorder after adjusting for sociodemographic factors. Respondents with never-married status above the mean marriage age were associated with suicide attempts (adjusted odds ratio [aOR], 3.21;95% confidence interval [CI], 1.36–7.60) after controlling for sociodemographic factors and lifetime prevalence of mental disorders, while respondents with never-married status under the mean marriage age were not. Moreover, in respondents with never-married status, getting older than the mean marriage age was associated with suicidal ideations (aOR, 1.49;95% CI, 1.04–2.15) and suicide attempts (aOR, 3.38; 95% CI, 1.46–7.84) after controlling for sociodemographic factors and lifetime prevalence of mental disorders. 
		                        		
		                        			Conclusion
		                        			Never-married status above the mean first marriage age was associated with mental disorders and suicidality. These findings suggest the need for a national strategy to develop an environment where people with never-married status do not suffer even if their marriage is delayed. 
		                        		
		                        		
		                        		
		                        	
9.The Association of Childhood Experience of Peer Bullying with DSM-IV Psychiatric Disorders and Suicidality in Adults: Results from a Nationwide Survey in Korea
Jungmin WOO ; Sung Man CHANG ; Jin Pyo HONG ; Dong Woo LEE ; Bong Jin HAHM ; Seong Jin CHO ; Jong Ik PARK ; Hong Jin JEON ; Su Jeong SEONG ; Jee Eun PARK ; Byung Soo KIM
Journal of Korean Medical Science 2019;34(46):e295-
		                        		
		                        			
		                        			BACKGROUND: Few studies have examined the association between childhood bullying and adulthood mental disorders based on the Diagnostic and Statistical Manual of Mental Disorders (DSM) criteria. We investigated the association of childhood peer bullying with Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV) psychiatric disorders and suicidality in adults. METHODS: A total of 5,102 respondents aged 18 or over completed the Korean version of the Composite International Diagnostic Interview for DSM-IV psychiatric disorders and a questionnaire for suicidal ideas, plans, and attempts. We evaluated peer bullying using an item in the Adverse Childhood Experiences International Questionnaire. Logistic regression analyses were used to identify the association between victimization of peer bullying, adult psychiatric disorders, and suicidality. RESULTS: Around 8.8% of the general population in Korea reported the experience of being bullied when growing up. Bullying experience was associated with an increase in the adulthood prevalence of nicotine use disorders (adjusted odds ratio [aOR], 2.47; 95% confidence interval [CI], 1.75–3.49), alcohol use disorders (aOR, 1.93; 95% CI, 1.49–2.51), mood disorders (aOR, 4.23; 95% CI, 3.01–5.94), and anxiety disorders (aOR, 2.89; 95% CI, 1.89–4.43) after adjusting for sociodemographic variables. Among anxiety disorders, the OR for post-traumatic stress disorder (aOR, 9.95; 95% CI, 5.62–17.63) was notably high. Frequent victimization (many times) was significantly associated with suicidality even after adjusting for sociodemographic variables and lifetime prevalence of psychiatric disorders, whereas occasional victimization (once or a few times) was not. CONCLUSION: Childhood bullying experience was associated with adult psychiatric disorders and suicidality. The findings indicated the importance of the early detection and management of childhood peer bullying to reduce detrimental adulthood consequences.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Anxiety Disorders
		                        			;
		                        		
		                        			Bullying
		                        			;
		                        		
		                        			Crime Victims
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Diagnostic and Statistical Manual of Mental Disorders
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Logistic Models
		                        			;
		                        		
		                        			Mental Disorders
		                        			;
		                        		
		                        			Mood Disorders
		                        			;
		                        		
		                        			Odds Ratio
		                        			;
		                        		
		                        			Prevalence
		                        			;
		                        		
		                        			Stress Disorders, Post-Traumatic
		                        			;
		                        		
		                        			Suicide
		                        			;
		                        		
		                        			Surveys and Questionnaires
		                        			;
		                        		
		                        			Tobacco Use Disorder
		                        			
		                        		
		                        	
10.Association of Overweight with the Prevalence of Lifetime Psychiatric Disorders and Suicidality: General Population-based Study in Korea.
Byung Soo KIM ; Sung Man CHANG ; Su Jeong SEONG ; Jee Eun PARK ; Subin PARK ; Jin Pyo HONG ; Jae Nam BAE ; Seong Jin CHO ; Bong Jin HAHM ; Dong Woo LEE ; Jong Ik PARK ; Jun Young LEE ; Hong Jin JEON ; Maeng Je CHO
Journal of Korean Medical Science 2016;31(11):1814-1821
		                        		
		                        			
		                        			Many epidemiological studies suggest that overweight is associated with an elevated risk of psychiatric disorders and suicidal tendency. However, findings vary across studies, and some have contradictory results. We investigated the relationship of overweight with a range of psychiatric disorders and suicidality in the Korean general population. A multistage cluster sampling design was adopted. A total of 6,022 participants aged 18–74 years completed face-to-face interviews (response rate: 78.7%) including assessment of psychiatric disorders, suicidality, and height and weight. Overweight (defined as body mass index of ≥ 25) was associated with an increase in the lifetime prevalence of depressive disorders (adjusted odds ratio [AOR] 1.38; 95% confidence interval [CI], 1.07–1.77), suicidal ideation (AOR, 1.42; 95% CI, 1.20–1.68), and suicidal plans (AOR, 1.44; 95% CI, 1.02–2.03), controlling for sociodemographic variables. Subgroup analysis found that the association between overweight and depressive disorders exists only in women aged 18–44 years (AOR, 1.75; 95% CI, 1.07–2.89) while the association of overweight with suicidal ideation (AOR, 2.08; 95% CI, 1.53–2.82) and suicide plans (AOR, 2.59; 95% CI, 1.25–5.37) existed only in men aged 18–44 years. Overweight was associated with increased odds of nicotine use disorders in women aged 18–44 years (AOR, 2.35; 95% CI, 1.02–5.43), but the association was in the opposite direction in men aged 45–74 years (AOR, 0.64; 95% CI, 0.43–0.94). In conclusion, overweight is related to various psychiatric disorders and suicidality in Korea. Policy makers and clinicians should pay more attention to the mental health of overweight individuals.
		                        		
		                        		
		                        		
		                        			Administrative Personnel
		                        			;
		                        		
		                        			Body Mass Index
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Depressive Disorder
		                        			;
		                        		
		                        			Epidemiologic Studies
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Korea*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Mental Disorders
		                        			;
		                        		
		                        			Mental Health
		                        			;
		                        		
		                        			Obesity
		                        			;
		                        		
		                        			Odds Ratio
		                        			;
		                        		
		                        			Overweight*
		                        			;
		                        		
		                        			Prevalence*
		                        			;
		                        		
		                        			Suicidal Ideation
		                        			;
		                        		
		                        			Suicide
		                        			;
		                        		
		                        			Tobacco Use Disorder
		                        			
		                        		
		                        	
            
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