1.Standardized learner simulation for debriefer training through video conference
Korean Journal of Medical Education 2025;37(1):35-45
Purpose:
Debriefing after simulation-based healthcare education (SBHE) is challenging. Educators’ debriefing skills are essential to the success of learning. For debriefing skill training, we designed a simulation course with the standardized learner (SL) through video conference. The purpose of this study was to describe the implementation process of the SL simulation course and evaluate its effectiveness on educators’ self-confidence and debriefing skills.
Methods:
This simulation course involved six trainees and two trainers. After watching a 5-minute sample video of SBHE, each trainee conducted their role as a debriefer in this video and the trainer acted as a learner (SL) in this video. Following each simulation, individual feedback by the trainer was immediately implemented. To evaluate the course’s effectiveness, trainees’ self-confidence questionnaire was collected, and objective structured assessment of debriefing (OSAD) scores were evaluated.
Results:
After completing five SL simulation sessions in 2 weeks, the trainees’ self-confidence level and OSAD scores improved significantly (estimate=0.114, standard error=0.020, p<0.001, and p=0.006).
Conclusion
This debriefer training course using SL simulation via video conference could improve self-confidence and debriefing skills of trainees. This SL simulation can be used as a new and flexible method for training debriefers.
2.Standardized learner simulation for debriefer training through video conference
Korean Journal of Medical Education 2025;37(1):35-45
Purpose:
Debriefing after simulation-based healthcare education (SBHE) is challenging. Educators’ debriefing skills are essential to the success of learning. For debriefing skill training, we designed a simulation course with the standardized learner (SL) through video conference. The purpose of this study was to describe the implementation process of the SL simulation course and evaluate its effectiveness on educators’ self-confidence and debriefing skills.
Methods:
This simulation course involved six trainees and two trainers. After watching a 5-minute sample video of SBHE, each trainee conducted their role as a debriefer in this video and the trainer acted as a learner (SL) in this video. Following each simulation, individual feedback by the trainer was immediately implemented. To evaluate the course’s effectiveness, trainees’ self-confidence questionnaire was collected, and objective structured assessment of debriefing (OSAD) scores were evaluated.
Results:
After completing five SL simulation sessions in 2 weeks, the trainees’ self-confidence level and OSAD scores improved significantly (estimate=0.114, standard error=0.020, p<0.001, and p=0.006).
Conclusion
This debriefer training course using SL simulation via video conference could improve self-confidence and debriefing skills of trainees. This SL simulation can be used as a new and flexible method for training debriefers.
3.Non-Linear Association Between Physical Activities and Type 2Diabetes in 2.4 Million Korean Population, 2009–2022: A Nationwide Representative Study
Wonwoo JANG ; Seokjun KIM ; Yejun SON ; Soeun KIM ; Hayeon LEE ; Jaeyu PARK ; Kyeongmin LEE ; Jiseung KANG ; Damiano PIZZOL ; Jiyoung HWANG ; Sang Youl RHEE ; Dong Keon YON
Journal of Korean Medical Science 2025;40(12):e42-
Background:
Although excessive physical activity (PA) does not always confer additional health benefits, there is a paucity of studies that have quantitatively examined the doseresponse relationship between PA and type 2 diabetes. Therefore, this study investigated the relationship between the type 2 diabetes prevalence and intensity, frequency, and metabolic equivalent of task (MET) score of PA in a large population sample.
Methods:
We conducted a nationwide cross-sectional analysis examining sociodemographic variables, PA habits, and type 2 diabetes prevalence in 2,428,448 participants included in the Korea Community Health Survey. The non-linear association between MET score and odds ratios (ORs) for type 2 diabetes prevalence was plotted using a weighted generalized additive model. Categorical analysis was used to examine the joint association of moderate-intensity PA (MPA) and vigorous-intensity PA (VPA), and the influence of PA frequency.
Results:
MET score and diabetes prevalence revealed a non-linear association with the nadir at 1,028 MET-min/week, beyond which ORs increased with additional PA. Joint analysis of MPA and VPA showed the lowest OR of 0.79 (95% confidence interval, 0.75–0.84) for those engaging in 300–600 MET-min/week of MPA and > 600 MET-min/week of VPA concurrently, corresponding with World Health Organization recommendations. Additionally, both “weekend warriors” and “regularly active” individuals showed lower ORs compared to the inactive, although no significant difference was noted between the active groups.
Conclusion
In a large South Korean sample, higher PA is not always associated with a lower prevalence of type 2 diabetes, as the association follows a non-linear pattern; differences existed across sociodemographic variables. Considering the joint association, an adequate combination of MPA and VPA is recommended. The frequency of PA does not significantly influence the type 2 diabetes prevalence.
4.Non-Linear Association Between Physical Activities and Type 2Diabetes in 2.4 Million Korean Population, 2009–2022: A Nationwide Representative Study
Wonwoo JANG ; Seokjun KIM ; Yejun SON ; Soeun KIM ; Hayeon LEE ; Jaeyu PARK ; Kyeongmin LEE ; Jiseung KANG ; Damiano PIZZOL ; Jiyoung HWANG ; Sang Youl RHEE ; Dong Keon YON
Journal of Korean Medical Science 2025;40(12):e42-
Background:
Although excessive physical activity (PA) does not always confer additional health benefits, there is a paucity of studies that have quantitatively examined the doseresponse relationship between PA and type 2 diabetes. Therefore, this study investigated the relationship between the type 2 diabetes prevalence and intensity, frequency, and metabolic equivalent of task (MET) score of PA in a large population sample.
Methods:
We conducted a nationwide cross-sectional analysis examining sociodemographic variables, PA habits, and type 2 diabetes prevalence in 2,428,448 participants included in the Korea Community Health Survey. The non-linear association between MET score and odds ratios (ORs) for type 2 diabetes prevalence was plotted using a weighted generalized additive model. Categorical analysis was used to examine the joint association of moderate-intensity PA (MPA) and vigorous-intensity PA (VPA), and the influence of PA frequency.
Results:
MET score and diabetes prevalence revealed a non-linear association with the nadir at 1,028 MET-min/week, beyond which ORs increased with additional PA. Joint analysis of MPA and VPA showed the lowest OR of 0.79 (95% confidence interval, 0.75–0.84) for those engaging in 300–600 MET-min/week of MPA and > 600 MET-min/week of VPA concurrently, corresponding with World Health Organization recommendations. Additionally, both “weekend warriors” and “regularly active” individuals showed lower ORs compared to the inactive, although no significant difference was noted between the active groups.
Conclusion
In a large South Korean sample, higher PA is not always associated with a lower prevalence of type 2 diabetes, as the association follows a non-linear pattern; differences existed across sociodemographic variables. Considering the joint association, an adequate combination of MPA and VPA is recommended. The frequency of PA does not significantly influence the type 2 diabetes prevalence.
5.Non-Linear Association Between Physical Activities and Type 2Diabetes in 2.4 Million Korean Population, 2009–2022: A Nationwide Representative Study
Wonwoo JANG ; Seokjun KIM ; Yejun SON ; Soeun KIM ; Hayeon LEE ; Jaeyu PARK ; Kyeongmin LEE ; Jiseung KANG ; Damiano PIZZOL ; Jiyoung HWANG ; Sang Youl RHEE ; Dong Keon YON
Journal of Korean Medical Science 2025;40(12):e42-
Background:
Although excessive physical activity (PA) does not always confer additional health benefits, there is a paucity of studies that have quantitatively examined the doseresponse relationship between PA and type 2 diabetes. Therefore, this study investigated the relationship between the type 2 diabetes prevalence and intensity, frequency, and metabolic equivalent of task (MET) score of PA in a large population sample.
Methods:
We conducted a nationwide cross-sectional analysis examining sociodemographic variables, PA habits, and type 2 diabetes prevalence in 2,428,448 participants included in the Korea Community Health Survey. The non-linear association between MET score and odds ratios (ORs) for type 2 diabetes prevalence was plotted using a weighted generalized additive model. Categorical analysis was used to examine the joint association of moderate-intensity PA (MPA) and vigorous-intensity PA (VPA), and the influence of PA frequency.
Results:
MET score and diabetes prevalence revealed a non-linear association with the nadir at 1,028 MET-min/week, beyond which ORs increased with additional PA. Joint analysis of MPA and VPA showed the lowest OR of 0.79 (95% confidence interval, 0.75–0.84) for those engaging in 300–600 MET-min/week of MPA and > 600 MET-min/week of VPA concurrently, corresponding with World Health Organization recommendations. Additionally, both “weekend warriors” and “regularly active” individuals showed lower ORs compared to the inactive, although no significant difference was noted between the active groups.
Conclusion
In a large South Korean sample, higher PA is not always associated with a lower prevalence of type 2 diabetes, as the association follows a non-linear pattern; differences existed across sociodemographic variables. Considering the joint association, an adequate combination of MPA and VPA is recommended. The frequency of PA does not significantly influence the type 2 diabetes prevalence.
6.Standardized learner simulation for debriefer training through video conference
Korean Journal of Medical Education 2025;37(1):35-45
Purpose:
Debriefing after simulation-based healthcare education (SBHE) is challenging. Educators’ debriefing skills are essential to the success of learning. For debriefing skill training, we designed a simulation course with the standardized learner (SL) through video conference. The purpose of this study was to describe the implementation process of the SL simulation course and evaluate its effectiveness on educators’ self-confidence and debriefing skills.
Methods:
This simulation course involved six trainees and two trainers. After watching a 5-minute sample video of SBHE, each trainee conducted their role as a debriefer in this video and the trainer acted as a learner (SL) in this video. Following each simulation, individual feedback by the trainer was immediately implemented. To evaluate the course’s effectiveness, trainees’ self-confidence questionnaire was collected, and objective structured assessment of debriefing (OSAD) scores were evaluated.
Results:
After completing five SL simulation sessions in 2 weeks, the trainees’ self-confidence level and OSAD scores improved significantly (estimate=0.114, standard error=0.020, p<0.001, and p=0.006).
Conclusion
This debriefer training course using SL simulation via video conference could improve self-confidence and debriefing skills of trainees. This SL simulation can be used as a new and flexible method for training debriefers.
7.Non-Linear Association Between Physical Activities and Type 2Diabetes in 2.4 Million Korean Population, 2009–2022: A Nationwide Representative Study
Wonwoo JANG ; Seokjun KIM ; Yejun SON ; Soeun KIM ; Hayeon LEE ; Jaeyu PARK ; Kyeongmin LEE ; Jiseung KANG ; Damiano PIZZOL ; Jiyoung HWANG ; Sang Youl RHEE ; Dong Keon YON
Journal of Korean Medical Science 2025;40(12):e42-
Background:
Although excessive physical activity (PA) does not always confer additional health benefits, there is a paucity of studies that have quantitatively examined the doseresponse relationship between PA and type 2 diabetes. Therefore, this study investigated the relationship between the type 2 diabetes prevalence and intensity, frequency, and metabolic equivalent of task (MET) score of PA in a large population sample.
Methods:
We conducted a nationwide cross-sectional analysis examining sociodemographic variables, PA habits, and type 2 diabetes prevalence in 2,428,448 participants included in the Korea Community Health Survey. The non-linear association between MET score and odds ratios (ORs) for type 2 diabetes prevalence was plotted using a weighted generalized additive model. Categorical analysis was used to examine the joint association of moderate-intensity PA (MPA) and vigorous-intensity PA (VPA), and the influence of PA frequency.
Results:
MET score and diabetes prevalence revealed a non-linear association with the nadir at 1,028 MET-min/week, beyond which ORs increased with additional PA. Joint analysis of MPA and VPA showed the lowest OR of 0.79 (95% confidence interval, 0.75–0.84) for those engaging in 300–600 MET-min/week of MPA and > 600 MET-min/week of VPA concurrently, corresponding with World Health Organization recommendations. Additionally, both “weekend warriors” and “regularly active” individuals showed lower ORs compared to the inactive, although no significant difference was noted between the active groups.
Conclusion
In a large South Korean sample, higher PA is not always associated with a lower prevalence of type 2 diabetes, as the association follows a non-linear pattern; differences existed across sociodemographic variables. Considering the joint association, an adequate combination of MPA and VPA is recommended. The frequency of PA does not significantly influence the type 2 diabetes prevalence.
8.Standardized learner simulation for debriefer training through video conference
Korean Journal of Medical Education 2025;37(1):35-45
Purpose:
Debriefing after simulation-based healthcare education (SBHE) is challenging. Educators’ debriefing skills are essential to the success of learning. For debriefing skill training, we designed a simulation course with the standardized learner (SL) through video conference. The purpose of this study was to describe the implementation process of the SL simulation course and evaluate its effectiveness on educators’ self-confidence and debriefing skills.
Methods:
This simulation course involved six trainees and two trainers. After watching a 5-minute sample video of SBHE, each trainee conducted their role as a debriefer in this video and the trainer acted as a learner (SL) in this video. Following each simulation, individual feedback by the trainer was immediately implemented. To evaluate the course’s effectiveness, trainees’ self-confidence questionnaire was collected, and objective structured assessment of debriefing (OSAD) scores were evaluated.
Results:
After completing five SL simulation sessions in 2 weeks, the trainees’ self-confidence level and OSAD scores improved significantly (estimate=0.114, standard error=0.020, p<0.001, and p=0.006).
Conclusion
This debriefer training course using SL simulation via video conference could improve self-confidence and debriefing skills of trainees. This SL simulation can be used as a new and flexible method for training debriefers.
9.Prediction of Helicobacter pylori Infection by Endoscopic Severity of Erythematous/exudative Gastritis in Asymptomatic Adults
One Zoong KIM ; Kyoung Hoon RHEE ; Hyunwoo OH ; Byoung Kwan SON ; Kwang Hyun Ch CHUNG ; Hyo Young LEE ; Il Hwan OH ; Jiyoung YOON ; Soo Hyung KIM ; Chan Hyuk PARK
The Korean Journal of Gastroenterology 2022;80(3):135-141
Background/Aims:
Helicobacter pylori (H. pylori) infection highly correlates with erythematous/exudative gastritis, which is one of the endoscopic findings of the Sydney classification system. The present study aimed to evaluate the association between endoscopic severity of erythematous/exudative gastritis and H. pylori infection.
Methods:
We prospectively enrolled asymptomatic adults who were diagnosed with erythematous/exudative gastritis during screening esophagogastroduodenoscopy. A rapid urease test was performed in all participants to diagnose H. pylori infection. The severity of erythematous/exudative gastritis was determined based on the Sydney classification system. Two investigators independently evaluated the endoscopic findings. The primary endpoint was H. pylori infection rate according to the severity of erythematous/exudative gastritis (mild vs. moderate-to-severe).
Results:
A total of 177 patients with erythematous/exudative gastritis were included. The rate of H. pyloriinfection was 86.4% in all patients. Of 177 included patients, 78 were at mild degree, 48 were at moderate degree, and 51 were at severe degree. The inter-observer variation was 4.6% and kappa value was 0.593. H. pylori infection rate was similar between patients with mild erythematous/exudative gastritis and those with moderate-to-severe erythematous/exudative gastritis (91.0% vs. 82.8%, p=0.115). Even after adjusting potential confounding variables, the severity of erythematous/exudative gastritis was not associated with H. pylori infection rate.
Conclusions
H. pylori infection is commonly observed in patients with erythematous/exudative gastritis. However, the severity of erythematous/exudative gastritis is not associated with H. pylori infection rate.
10.The Timing and Route of Transfer for End-of-Life Care in Cancer Patients
Jiyoung RHEE ; Jung Mi KWON ; Sang Hoon HAN
Korean Journal of Family Practice 2019;9(1):118-121
BACKGROUND: We evaluated the timing and route of arrival of patients with cancer referred to a hospital near their residence for end-of-life care.METHODS: The medical records of patients with cancer receiving palliative systemic treatment at other hospitals who were transferred to our hospital for terminal care were reviewed retrospectively.RESULTS: Records of 60 patients (mean age, 57.4 years) were reviewed. The median survival after transfer was 40 days; 56.3% and 43.3% of the patients were referred to the outpatient and emergency departments of our hospital, respectively. Only 45% of the patients were enrolled in the hospice palliative care system. The most common reason for not enrolling was rejection of the patients or their families for hospice palliative care.CONCLUSION: For end-of-life care, the time from the referral to death was short, and many patients were transferred to the emergency department of our hospital.
Emergency Service, Hospital
;
Hospices
;
Humans
;
Medical Records
;
Outpatients
;
Palliative Care
;
Referral and Consultation
;
Retrospective Studies
;
Terminal Care

Result Analysis
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