2.Impact of New-Onset Diabetes after Transplantation on Cardiovascular Risk and Mortality in Korea: A Nationwide Population-Based Study
Seung Shin PARK ; Bo Kyung KOO ; Sanghyun PARK ; Kyungdo HAN ; Min Kyong MOON
Diabetes & Metabolism Journal 2025;49(1):117-127
		                        		
		                        			 Background:
		                        			Limited data are available on the adverse effects of new-onset diabetes after transplantation (NODAT) in solid organ transplantation (TPL) other than kidney. This study aimed to identify the risk of complications associated with NODAT in recipients of kidney, liver, or heart TPL. 
		                        		
		                        			Methods:
		                        			Using the Korean National Health Insurance Service database, recipients of kidney, liver, or heart TPL between 2009 and 2015 were identified. The incidence of coronary artery disease (CAD), cerebrovascular accident (CVA), and malignancy was compared across groups with NODAT, pretransplant diabetes mellitus (DM), and without DM using Cox regression analysis. 
		                        		
		                        			Results:
		                        			A total of 9,632 kidney, liver, or heart TPL recipients were included. During the median follow-up of 5.9 years, NODAT independently increased the incidence of CAD (hazard ratio [HR], 2.46; 95% confidence interval [CI], 1.39 to 4.30) and overall mortality (HR, 1.48; 95% CI, 1.14 to 1.95) compared to the reference group even after adjustment for confounders; this was more prominent in kidney TPL than in liver TPL. The risk of CVA was significantly increased by pretransplant DM but not by NODAT in both kidney and liver TPL (HR, 2.47; 95% CI, 1.68 to 3.65; and HR, 3.18; 95% CI, 1.07 to 9.48, respectively). NODAT increased the risk of malignancy in the crude model, which lost its statistical significance after confounder adjustment. 
		                        		
		                        			Conclusion
		                        			NODAT independently increases the risk of CAD and mortality after TPL, which is more evident in kidney recipients. There was no additional increased risk of CVA or malignancy with NODAT in solid organ TPL. 
		                        		
		                        		
		                        		
		                        	
3.Risk of Diabetes Mellitus in Adults with Intellectual Disabilities: A Nationwide Cohort Study
Hye Yeon KOO ; In Young CHO ; Yoo Jin UM ; Yong-Moon Mark PARK ; Kyung Mee KIM ; Chung Eun LEE ; Kyungdo HAN
Endocrinology and Metabolism 2025;40(1):103-111
		                        		
		                        			 Background:
		                        			Intellectual disability (ID) may be associated with an increased risk of diabetes mellitus (DM). However, evidence from longitudinal studies is scarce, particularly in Asian populations. 
		                        		
		                        			Methods:
		                        			This retrospective cohort study used representative linked data from the Korea National Disability Registration System and the National Health Insurance Service database. Adults (≥20 years) who received a national health examination in 2009 (3,385 individuals with ID and 3,463,604 individuals without ID) were included and followed until 2020. ID was identified using legal registration information. Incident DM was defined by prescription records with relevant diagnostic codes. Multivariable-adjusted Cox proportional hazards regression models were used to estimate the adjusted hazard ratio (aHR) and 95% confidence interval (CI) for DM risks in individuals with ID compared to those without ID. 
		                        		
		                        			Results:
		                        			Over a mean follow-up of 9.8 years, incident DM occurred in 302 (8.9%) individuals with ID and 299,156 (8.4%) individuals without ID. Having ID was associated with increased DM risk (aHR, 1.38; 95% CI, 1.23 to 1.55). Sensitivity analysis confirmed a higher DM risk in individuals with ID (aHR, 1.39; 95% CI, 1.24 to 1.56) than those with other disabilities (aHR, 1.11; 95% CI, 1.10 to 1.13) or no disability (reference). Stratified analysis showed higher DM risk in non-hypertensive subjects (aHR, 1.63; 95% CI, 1.43 to 1.86) compared to hypertensive subjects (aHR, 1.00; 95% CI, 0.80 to 1.26; P for interaction <0.001). 
		                        		
		                        			Conclusion
		                        			Adults with ID have an increased risk of developing DM, highlighting the need for targeted public health strategies to promote DM prevention in this population. 
		                        		
		                        		
		                        		
		                        	
4.Hepatic Kaposi Sarcoma after Kidney Transplantation:A Case Report
Seunghyeon ROH ; Myoung Seok LEE ; Siwon JANG ; Min Hoan MOON ; Joon Koo HAN
Journal of the Korean Society of Radiology 2025;86(1):141-147
		                        		
		                        			
		                        			 Kaposi sarcoma is an undisputed malignancy associated with a heightened relative risk after transplantation. Similar to other causes of Kaposi’s sarcoma, cutaneous involvement is typical in post-transplant patients; however, visceral involvement rarely occurs. We report a rare case of de novo hepatic Kaposi’s sarcoma manifesting as an ill-defined infiltrative lesion in the left lobe of the liver in a patient who was immunosuppressed for 9 months after a kidney transplantation using ultrasonography, CT, MRI, and fluorodeoxyglucose-PET. 
		                        		
		                        		
		                        		
		                        	
5.Impact of New-Onset Diabetes after Transplantation on Cardiovascular Risk and Mortality in Korea: A Nationwide Population-Based Study
Seung Shin PARK ; Bo Kyung KOO ; Sanghyun PARK ; Kyungdo HAN ; Min Kyong MOON
Diabetes & Metabolism Journal 2025;49(1):117-127
		                        		
		                        			 Background:
		                        			Limited data are available on the adverse effects of new-onset diabetes after transplantation (NODAT) in solid organ transplantation (TPL) other than kidney. This study aimed to identify the risk of complications associated with NODAT in recipients of kidney, liver, or heart TPL. 
		                        		
		                        			Methods:
		                        			Using the Korean National Health Insurance Service database, recipients of kidney, liver, or heart TPL between 2009 and 2015 were identified. The incidence of coronary artery disease (CAD), cerebrovascular accident (CVA), and malignancy was compared across groups with NODAT, pretransplant diabetes mellitus (DM), and without DM using Cox regression analysis. 
		                        		
		                        			Results:
		                        			A total of 9,632 kidney, liver, or heart TPL recipients were included. During the median follow-up of 5.9 years, NODAT independently increased the incidence of CAD (hazard ratio [HR], 2.46; 95% confidence interval [CI], 1.39 to 4.30) and overall mortality (HR, 1.48; 95% CI, 1.14 to 1.95) compared to the reference group even after adjustment for confounders; this was more prominent in kidney TPL than in liver TPL. The risk of CVA was significantly increased by pretransplant DM but not by NODAT in both kidney and liver TPL (HR, 2.47; 95% CI, 1.68 to 3.65; and HR, 3.18; 95% CI, 1.07 to 9.48, respectively). NODAT increased the risk of malignancy in the crude model, which lost its statistical significance after confounder adjustment. 
		                        		
		                        			Conclusion
		                        			NODAT independently increases the risk of CAD and mortality after TPL, which is more evident in kidney recipients. There was no additional increased risk of CVA or malignancy with NODAT in solid organ TPL. 
		                        		
		                        		
		                        		
		                        	
6.Risk of Diabetes Mellitus in Adults with Intellectual Disabilities: A Nationwide Cohort Study
Hye Yeon KOO ; In Young CHO ; Yoo Jin UM ; Yong-Moon Mark PARK ; Kyung Mee KIM ; Chung Eun LEE ; Kyungdo HAN
Endocrinology and Metabolism 2025;40(1):103-111
		                        		
		                        			 Background:
		                        			Intellectual disability (ID) may be associated with an increased risk of diabetes mellitus (DM). However, evidence from longitudinal studies is scarce, particularly in Asian populations. 
		                        		
		                        			Methods:
		                        			This retrospective cohort study used representative linked data from the Korea National Disability Registration System and the National Health Insurance Service database. Adults (≥20 years) who received a national health examination in 2009 (3,385 individuals with ID and 3,463,604 individuals without ID) were included and followed until 2020. ID was identified using legal registration information. Incident DM was defined by prescription records with relevant diagnostic codes. Multivariable-adjusted Cox proportional hazards regression models were used to estimate the adjusted hazard ratio (aHR) and 95% confidence interval (CI) for DM risks in individuals with ID compared to those without ID. 
		                        		
		                        			Results:
		                        			Over a mean follow-up of 9.8 years, incident DM occurred in 302 (8.9%) individuals with ID and 299,156 (8.4%) individuals without ID. Having ID was associated with increased DM risk (aHR, 1.38; 95% CI, 1.23 to 1.55). Sensitivity analysis confirmed a higher DM risk in individuals with ID (aHR, 1.39; 95% CI, 1.24 to 1.56) than those with other disabilities (aHR, 1.11; 95% CI, 1.10 to 1.13) or no disability (reference). Stratified analysis showed higher DM risk in non-hypertensive subjects (aHR, 1.63; 95% CI, 1.43 to 1.86) compared to hypertensive subjects (aHR, 1.00; 95% CI, 0.80 to 1.26; P for interaction <0.001). 
		                        		
		                        			Conclusion
		                        			Adults with ID have an increased risk of developing DM, highlighting the need for targeted public health strategies to promote DM prevention in this population. 
		                        		
		                        		
		                        		
		                        	
7.Impact of New-Onset Diabetes after Transplantation on Cardiovascular Risk and Mortality in Korea: A Nationwide Population-Based Study
Seung Shin PARK ; Bo Kyung KOO ; Sanghyun PARK ; Kyungdo HAN ; Min Kyong MOON
Diabetes & Metabolism Journal 2025;49(1):117-127
		                        		
		                        			 Background:
		                        			Limited data are available on the adverse effects of new-onset diabetes after transplantation (NODAT) in solid organ transplantation (TPL) other than kidney. This study aimed to identify the risk of complications associated with NODAT in recipients of kidney, liver, or heart TPL. 
		                        		
		                        			Methods:
		                        			Using the Korean National Health Insurance Service database, recipients of kidney, liver, or heart TPL between 2009 and 2015 were identified. The incidence of coronary artery disease (CAD), cerebrovascular accident (CVA), and malignancy was compared across groups with NODAT, pretransplant diabetes mellitus (DM), and without DM using Cox regression analysis. 
		                        		
		                        			Results:
		                        			A total of 9,632 kidney, liver, or heart TPL recipients were included. During the median follow-up of 5.9 years, NODAT independently increased the incidence of CAD (hazard ratio [HR], 2.46; 95% confidence interval [CI], 1.39 to 4.30) and overall mortality (HR, 1.48; 95% CI, 1.14 to 1.95) compared to the reference group even after adjustment for confounders; this was more prominent in kidney TPL than in liver TPL. The risk of CVA was significantly increased by pretransplant DM but not by NODAT in both kidney and liver TPL (HR, 2.47; 95% CI, 1.68 to 3.65; and HR, 3.18; 95% CI, 1.07 to 9.48, respectively). NODAT increased the risk of malignancy in the crude model, which lost its statistical significance after confounder adjustment. 
		                        		
		                        			Conclusion
		                        			NODAT independently increases the risk of CAD and mortality after TPL, which is more evident in kidney recipients. There was no additional increased risk of CVA or malignancy with NODAT in solid organ TPL. 
		                        		
		                        		
		                        		
		                        	
8.Risk of Diabetes Mellitus in Adults with Intellectual Disabilities: A Nationwide Cohort Study
Hye Yeon KOO ; In Young CHO ; Yoo Jin UM ; Yong-Moon Mark PARK ; Kyung Mee KIM ; Chung Eun LEE ; Kyungdo HAN
Endocrinology and Metabolism 2025;40(1):103-111
		                        		
		                        			 Background:
		                        			Intellectual disability (ID) may be associated with an increased risk of diabetes mellitus (DM). However, evidence from longitudinal studies is scarce, particularly in Asian populations. 
		                        		
		                        			Methods:
		                        			This retrospective cohort study used representative linked data from the Korea National Disability Registration System and the National Health Insurance Service database. Adults (≥20 years) who received a national health examination in 2009 (3,385 individuals with ID and 3,463,604 individuals without ID) were included and followed until 2020. ID was identified using legal registration information. Incident DM was defined by prescription records with relevant diagnostic codes. Multivariable-adjusted Cox proportional hazards regression models were used to estimate the adjusted hazard ratio (aHR) and 95% confidence interval (CI) for DM risks in individuals with ID compared to those without ID. 
		                        		
		                        			Results:
		                        			Over a mean follow-up of 9.8 years, incident DM occurred in 302 (8.9%) individuals with ID and 299,156 (8.4%) individuals without ID. Having ID was associated with increased DM risk (aHR, 1.38; 95% CI, 1.23 to 1.55). Sensitivity analysis confirmed a higher DM risk in individuals with ID (aHR, 1.39; 95% CI, 1.24 to 1.56) than those with other disabilities (aHR, 1.11; 95% CI, 1.10 to 1.13) or no disability (reference). Stratified analysis showed higher DM risk in non-hypertensive subjects (aHR, 1.63; 95% CI, 1.43 to 1.86) compared to hypertensive subjects (aHR, 1.00; 95% CI, 0.80 to 1.26; P for interaction <0.001). 
		                        		
		                        			Conclusion
		                        			Adults with ID have an increased risk of developing DM, highlighting the need for targeted public health strategies to promote DM prevention in this population. 
		                        		
		                        		
		                        		
		                        	
9.Hepatic Kaposi Sarcoma after Kidney Transplantation:A Case Report
Seunghyeon ROH ; Myoung Seok LEE ; Siwon JANG ; Min Hoan MOON ; Joon Koo HAN
Journal of the Korean Society of Radiology 2025;86(1):141-147
		                        		
		                        			
		                        			 Kaposi sarcoma is an undisputed malignancy associated with a heightened relative risk after transplantation. Similar to other causes of Kaposi’s sarcoma, cutaneous involvement is typical in post-transplant patients; however, visceral involvement rarely occurs. We report a rare case of de novo hepatic Kaposi’s sarcoma manifesting as an ill-defined infiltrative lesion in the left lobe of the liver in a patient who was immunosuppressed for 9 months after a kidney transplantation using ultrasonography, CT, MRI, and fluorodeoxyglucose-PET. 
		                        		
		                        		
		                        		
		                        	
10.Impact of New-Onset Diabetes after Transplantation on Cardiovascular Risk and Mortality in Korea: A Nationwide Population-Based Study
Seung Shin PARK ; Bo Kyung KOO ; Sanghyun PARK ; Kyungdo HAN ; Min Kyong MOON
Diabetes & Metabolism Journal 2025;49(1):117-127
		                        		
		                        			 Background:
		                        			Limited data are available on the adverse effects of new-onset diabetes after transplantation (NODAT) in solid organ transplantation (TPL) other than kidney. This study aimed to identify the risk of complications associated with NODAT in recipients of kidney, liver, or heart TPL. 
		                        		
		                        			Methods:
		                        			Using the Korean National Health Insurance Service database, recipients of kidney, liver, or heart TPL between 2009 and 2015 were identified. The incidence of coronary artery disease (CAD), cerebrovascular accident (CVA), and malignancy was compared across groups with NODAT, pretransplant diabetes mellitus (DM), and without DM using Cox regression analysis. 
		                        		
		                        			Results:
		                        			A total of 9,632 kidney, liver, or heart TPL recipients were included. During the median follow-up of 5.9 years, NODAT independently increased the incidence of CAD (hazard ratio [HR], 2.46; 95% confidence interval [CI], 1.39 to 4.30) and overall mortality (HR, 1.48; 95% CI, 1.14 to 1.95) compared to the reference group even after adjustment for confounders; this was more prominent in kidney TPL than in liver TPL. The risk of CVA was significantly increased by pretransplant DM but not by NODAT in both kidney and liver TPL (HR, 2.47; 95% CI, 1.68 to 3.65; and HR, 3.18; 95% CI, 1.07 to 9.48, respectively). NODAT increased the risk of malignancy in the crude model, which lost its statistical significance after confounder adjustment. 
		                        		
		                        			Conclusion
		                        			NODAT independently increases the risk of CAD and mortality after TPL, which is more evident in kidney recipients. There was no additional increased risk of CVA or malignancy with NODAT in solid organ TPL. 
		                        		
		                        		
		                        		
		                        	
            
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