1.The Cancer Clinical Library Database (CCLD) from the Korea-Clinical Data Utilization Network for Research Excellence (K-CURE) Project
Sangwon LEE ; Yeon Ho CHOI ; Hak Min KIM ; Min Ah HONG ; Phillip PARK ; In Hae KWAK ; Ye Ji KANG ; Kui Son CHOI ; Hyun-Joo KONG ; Hyosung CHA ; Hyun-Jin KIM ; Kwang Sun RYU ; Young Sang JEON ; Hwanhee KIM ; Jip Min JUNG ; Jeong-Soo IM ; Heejung CHAE
Cancer Research and Treatment 2025;57(1):19-27
The common data model (CDM) has found widespread application in healthcare studies, but its utilization in cancer research has been limited. This article describes the development and implementation strategy for Cancer Clinical Library Databases (CCLDs), which are standardized cancer-specific databases established under the Korea-Clinical Data Utilization Network for Research Excellence (K-CURE) project by the Korean Ministry of Health and Welfare. Fifteen leading hospitals and fourteen academic associations in Korea are engaged in constructing CCLDs for 10 primary cancer types. For each cancer type-specific CCLD, cancer data experts determine key clinical data items essential for cancer research, standardize these items across cancer types, and create a standardized schema. Comprehensive clinical records covering diagnosis, treatment, and outcomes, with annual updates, are collected for each cancer patient in the target population, and quality control is based on six-sigma standards. To protect patient privacy, CCLDs follow stringent data security guidelines by pseudonymizing personal identification information and operating within a closed analysis environment. Researchers can apply for access to CCLD data through the K-CURE portal, which is subject to Institutional Review Board and Data Review Board approval. The CCLD is considered a pioneering standardized cancer-specific database, significantly representing Korea’s cancer data. It is expected to overcome limitations of previous CDMs and provide a valuable resource for multicenter cancer research in Korea.
2.The Cancer Clinical Library Database (CCLD) from the Korea-Clinical Data Utilization Network for Research Excellence (K-CURE) Project
Sangwon LEE ; Yeon Ho CHOI ; Hak Min KIM ; Min Ah HONG ; Phillip PARK ; In Hae KWAK ; Ye Ji KANG ; Kui Son CHOI ; Hyun-Joo KONG ; Hyosung CHA ; Hyun-Jin KIM ; Kwang Sun RYU ; Young Sang JEON ; Hwanhee KIM ; Jip Min JUNG ; Jeong-Soo IM ; Heejung CHAE
Cancer Research and Treatment 2025;57(1):19-27
The common data model (CDM) has found widespread application in healthcare studies, but its utilization in cancer research has been limited. This article describes the development and implementation strategy for Cancer Clinical Library Databases (CCLDs), which are standardized cancer-specific databases established under the Korea-Clinical Data Utilization Network for Research Excellence (K-CURE) project by the Korean Ministry of Health and Welfare. Fifteen leading hospitals and fourteen academic associations in Korea are engaged in constructing CCLDs for 10 primary cancer types. For each cancer type-specific CCLD, cancer data experts determine key clinical data items essential for cancer research, standardize these items across cancer types, and create a standardized schema. Comprehensive clinical records covering diagnosis, treatment, and outcomes, with annual updates, are collected for each cancer patient in the target population, and quality control is based on six-sigma standards. To protect patient privacy, CCLDs follow stringent data security guidelines by pseudonymizing personal identification information and operating within a closed analysis environment. Researchers can apply for access to CCLD data through the K-CURE portal, which is subject to Institutional Review Board and Data Review Board approval. The CCLD is considered a pioneering standardized cancer-specific database, significantly representing Korea’s cancer data. It is expected to overcome limitations of previous CDMs and provide a valuable resource for multicenter cancer research in Korea.
3.The Cancer Clinical Library Database (CCLD) from the Korea-Clinical Data Utilization Network for Research Excellence (K-CURE) Project
Sangwon LEE ; Yeon Ho CHOI ; Hak Min KIM ; Min Ah HONG ; Phillip PARK ; In Hae KWAK ; Ye Ji KANG ; Kui Son CHOI ; Hyun-Joo KONG ; Hyosung CHA ; Hyun-Jin KIM ; Kwang Sun RYU ; Young Sang JEON ; Hwanhee KIM ; Jip Min JUNG ; Jeong-Soo IM ; Heejung CHAE
Cancer Research and Treatment 2025;57(1):19-27
The common data model (CDM) has found widespread application in healthcare studies, but its utilization in cancer research has been limited. This article describes the development and implementation strategy for Cancer Clinical Library Databases (CCLDs), which are standardized cancer-specific databases established under the Korea-Clinical Data Utilization Network for Research Excellence (K-CURE) project by the Korean Ministry of Health and Welfare. Fifteen leading hospitals and fourteen academic associations in Korea are engaged in constructing CCLDs for 10 primary cancer types. For each cancer type-specific CCLD, cancer data experts determine key clinical data items essential for cancer research, standardize these items across cancer types, and create a standardized schema. Comprehensive clinical records covering diagnosis, treatment, and outcomes, with annual updates, are collected for each cancer patient in the target population, and quality control is based on six-sigma standards. To protect patient privacy, CCLDs follow stringent data security guidelines by pseudonymizing personal identification information and operating within a closed analysis environment. Researchers can apply for access to CCLD data through the K-CURE portal, which is subject to Institutional Review Board and Data Review Board approval. The CCLD is considered a pioneering standardized cancer-specific database, significantly representing Korea’s cancer data. It is expected to overcome limitations of previous CDMs and provide a valuable resource for multicenter cancer research in Korea.
4.Management Strategies for Young-Onset Type 2 Diabetes Mellitus: An Integrated Approach
Journal of Korean Diabetes 2024;25(3):150-156
The prevalence of young-onset type 2 diabetes is increasing rapidly worldwide along with the incidence of obesity, including in Korea. Compared with later onset type 2 diabetes, patients with young-onset type 2 diabetes have a higher risk of microvascular complication, macrovascular complication, and disease-related mortality. Thus, integrated attention and management of associated pathobiological, socioeconomic, and mental health factors are needed. Based on the very few evidence-based studies in management, in this review, we describe strategies for the integrated management for young-onset type 2 diabetes.
5.Management Strategies for Young-Onset Type 2 Diabetes Mellitus: An Integrated Approach
Journal of Korean Diabetes 2024;25(3):150-156
The prevalence of young-onset type 2 diabetes is increasing rapidly worldwide along with the incidence of obesity, including in Korea. Compared with later onset type 2 diabetes, patients with young-onset type 2 diabetes have a higher risk of microvascular complication, macrovascular complication, and disease-related mortality. Thus, integrated attention and management of associated pathobiological, socioeconomic, and mental health factors are needed. Based on the very few evidence-based studies in management, in this review, we describe strategies for the integrated management for young-onset type 2 diabetes.
6.Management Strategies for Young-Onset Type 2 Diabetes Mellitus: An Integrated Approach
Journal of Korean Diabetes 2024;25(3):150-156
The prevalence of young-onset type 2 diabetes is increasing rapidly worldwide along with the incidence of obesity, including in Korea. Compared with later onset type 2 diabetes, patients with young-onset type 2 diabetes have a higher risk of microvascular complication, macrovascular complication, and disease-related mortality. Thus, integrated attention and management of associated pathobiological, socioeconomic, and mental health factors are needed. Based on the very few evidence-based studies in management, in this review, we describe strategies for the integrated management for young-onset type 2 diabetes.
7.Impact of COVID-19 infection during the postoperative period in patients who underwent gastrointestinal surgery: a retrospective study
Hyo Seon RYU ; Se Hoon JUNG ; Eun Hae CHO ; Jeong Min CHOO ; Ji-Seon KIM ; Se-Jin BAEK ; Jin KIM ; Jung-Myun KWAK
Annals of Surgical Treatment and Research 2024;106(3):133-139
Purpose:
The coronavirus disease 2019 (COVID-19) pandemic has led to significant global casualties. This study examines the postoperative impact of COVID-19 on patients who underwent gastrointestinal surgery, considering their heightened vulnerability to infections and increased morbidity and mortality risk.
Methods:
This retrospective observational study was conducted at a tertiary center and patients who underwent gastrointestinal surgery between January 2022 and February 2023 were included. Postoperative COVID-19 infection was defined as the detection of severe acute respiratory syndrome coronavirus 2 RNA by RT-PCR within 14 days after surgery. Propensity score matching was performed including age, sex, American Society of Anesthesiology physical status classification, and emergency operation between the COVID-19-negative (–) and -positive (+) groups.
Results:
Following 1:2 propensity score matching, 21 COVID-19(+) and 42 COVID-19(–) patients were included in the study. In the COVID-19(+) group, the postoperative complication rate was significantly higher (52.4% vs. 23.8%, P = 0.023).Mechanical ventilator requirement, intensive care unit (ICU) admission, and readmission rate did not significantly differ between the 2 groups. The median length of ICU (19 days vs. 4 days, P < 0.001) and hospital stay (18 vs. 8 days, P = 0.015) were significantly longer in the COVID-19(+) group. Patients with COVID-19 had a 2.4 times higher relative risk (RR) of major complications than patients without COVID-19 (RR, 2.37; 95% confidence interval, 1.254–4.467; P = 0.015).
Conclusion
COVID-19 infection during the postoperative period in gastrointestinal surgery may have adverse outcomes which may increase the risk of major complications. Preoperative COVID-19 screening and protocols for COVID-19 prevention in surgical patients should be maintained.
8.Management Strategies for Young-Onset Type 2 Diabetes Mellitus: An Integrated Approach
Journal of Korean Diabetes 2024;25(3):150-156
The prevalence of young-onset type 2 diabetes is increasing rapidly worldwide along with the incidence of obesity, including in Korea. Compared with later onset type 2 diabetes, patients with young-onset type 2 diabetes have a higher risk of microvascular complication, macrovascular complication, and disease-related mortality. Thus, integrated attention and management of associated pathobiological, socioeconomic, and mental health factors are needed. Based on the very few evidence-based studies in management, in this review, we describe strategies for the integrated management for young-onset type 2 diabetes.
9.Management Strategies for Young-Onset Type 2 Diabetes Mellitus: An Integrated Approach
Journal of Korean Diabetes 2024;25(3):150-156
The prevalence of young-onset type 2 diabetes is increasing rapidly worldwide along with the incidence of obesity, including in Korea. Compared with later onset type 2 diabetes, patients with young-onset type 2 diabetes have a higher risk of microvascular complication, macrovascular complication, and disease-related mortality. Thus, integrated attention and management of associated pathobiological, socioeconomic, and mental health factors are needed. Based on the very few evidence-based studies in management, in this review, we describe strategies for the integrated management for young-onset type 2 diabetes.
10.Usefulness of Early Warning Scores, ROX index, and CURB-65 in the prognostic evaluation of patients with COVID-19
Jincheol KO ; Jisun KIM ; Chang Hae PYO ; Hyun Kyung PARK ; Keun Hong PARK ; Hahn Bom KIM ; Eun Mi HAM ; Jin Hyung PARK ; Eungon SONG ; Saee Byel KANG ; Moon Hwan KWAK ; Dong Sun CHOI ; Jee Hyeon KIM
Journal of the Korean Society of Emergency Medicine 2023;34(1):70-78
Objective:
Early identification of COVID-19 in patients is important to prevent significant worsening of the disease. This study was undertaken to verify whether MEWS (Modified Early Warning Score), NEWS(National Early Warning Score), ROX index, and CURB-65, which are early diagnostic tools for severe respiratory diseases, could be applied to patients visiting the emergency room for COVID-19.
Methods:
This retrospective observational study included patients who visited an emergency medical center from September 1 to October 31, 2020, and from January 1 to February 28, 2021. Based on the vital signs and blood tests during the emergency room visit, severity evaluation tools and early diagnostic tools for severe cases were used and compared according to their area under the curve (AUC) values. The primary outcome was in-hospital mortality, while the secondary outcomes were intensive care unit admission rate and the need for mechanical ventilation based on these four tools (MEWS, NEWS, ROX index, and CURB-65).
Results:
A total of 667 patients were analyzed. No significant difference was determined between the non-survivor group and survivor group in the MEWS values (P=0.13), but statistically significant differences were observed for NEWS (5 vs. 1, P<0.05), CURB-65 (2 vs. 1, P<0.05), and ROX index (16.61 vs. 23.1, P<0.01). The AUC value of NEWS for death prediction indicated a good predictive power at 0.80, while that of MEWS showed a low predictive power at 0.57, which was statistically significant. Moreover, the AUC values of CURB-65 and ROX index did not differ significantly from values obtained for NEWS.
Conclusion
As early diagnostic tools for predicting death in COVID-19 patients, NEWS, ROX index, and CURB-65 showed excellent discrimination ability, whereas MEWS showed statistically and significantly lower discrimination ability.

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