1.Prevalence and factors influencing postpartum depression and its culture-specific cutoffs for women in Asia: a scoping review
Bora MOON ; Hyun Kyoung KIM ; Ju-Hee NHO ; Hyunkyung CHOI ; ChaeWeon CHUNG ; Sook Jung KANG ; Ju Hee KIM ; Ju-Young LEE ; Sihyun PARK ; Gisoo SHIN ; Ju-Eun SONG ; Min Hee LEE ; Sue KIM
The Ewha Medical Journal 2025;48(1):e15-
The prevalence of postpartum depression (PPD) in Asia is reported to range from 13.53% to 22.31%. However, there remains a gap in the identification of PPD, particularly regarding cultural cutoff points. Therefore, the purpose of this scoping review was to determine the prevalence and associated factors of PPD in Eastern, South-eastern, Western, and Southern Asian countries and analyze the cutoff points of the Edinburgh Postnatal Depression Scale (EPDS) used across these countries. Following Arksey and O'Malley’s five-step scoping review framework, the population was defined as mothers, the concept as the EPDS, and the context as the Asian region. A literature search was conducted using PubMed, Embase, CINAHL, PsycINFO, and Web of Science. The data analysis focused on demographic characteristics, EPDS cutoffs and features, PPD prevalence, and its associated factors. Nineteen studies were selected. Most countries used translated versions of the EPDS with demonstrated reliability and validity. The cutoff scores varied, with most using scores of 10 or higher. The prevalence of PPD ranged from 5.1% to 78.7%. Key associated factors for PPD included cultural factors such as relationships with in-laws and preferences for the newborn’s sex. To improve the accuracy of PPD screening in Asia, the EPDS should be used consistently, and appropriate cutoff criteria must be established. In addition, prevention strategies and programs that reflect the cultural characteristics and social context of Asia need to be developed for the early detection and prevention of PPD.
2.Prevalence and factors influencing postpartum depression and its culture-specific cutoffs for women in Asia: a scoping review
Bora MOON ; Hyun Kyoung KIM ; Ju-Hee NHO ; Hyunkyung CHOI ; ChaeWeon CHUNG ; Sook Jung KANG ; Ju Hee KIM ; Ju-Young LEE ; Sihyun PARK ; Gisoo SHIN ; Ju-Eun SONG ; Min Hee LEE ; Sue KIM
The Ewha Medical Journal 2025;48(1):e15-
The prevalence of postpartum depression (PPD) in Asia is reported to range from 13.53% to 22.31%. However, there remains a gap in the identification of PPD, particularly regarding cultural cutoff points. Therefore, the purpose of this scoping review was to determine the prevalence and associated factors of PPD in Eastern, South-eastern, Western, and Southern Asian countries and analyze the cutoff points of the Edinburgh Postnatal Depression Scale (EPDS) used across these countries. Following Arksey and O'Malley’s five-step scoping review framework, the population was defined as mothers, the concept as the EPDS, and the context as the Asian region. A literature search was conducted using PubMed, Embase, CINAHL, PsycINFO, and Web of Science. The data analysis focused on demographic characteristics, EPDS cutoffs and features, PPD prevalence, and its associated factors. Nineteen studies were selected. Most countries used translated versions of the EPDS with demonstrated reliability and validity. The cutoff scores varied, with most using scores of 10 or higher. The prevalence of PPD ranged from 5.1% to 78.7%. Key associated factors for PPD included cultural factors such as relationships with in-laws and preferences for the newborn’s sex. To improve the accuracy of PPD screening in Asia, the EPDS should be used consistently, and appropriate cutoff criteria must be established. In addition, prevention strategies and programs that reflect the cultural characteristics and social context of Asia need to be developed for the early detection and prevention of PPD.
3.Prevalence and factors influencing postpartum depression and its culture-specific cutoffs for women in Asia: a scoping review
Bora MOON ; Hyun Kyoung KIM ; Ju-Hee NHO ; Hyunkyung CHOI ; ChaeWeon CHUNG ; Sook Jung KANG ; Ju Hee KIM ; Ju-Young LEE ; Sihyun PARK ; Gisoo SHIN ; Ju-Eun SONG ; Min Hee LEE ; Sue KIM
The Ewha Medical Journal 2025;48(1):e15-
The prevalence of postpartum depression (PPD) in Asia is reported to range from 13.53% to 22.31%. However, there remains a gap in the identification of PPD, particularly regarding cultural cutoff points. Therefore, the purpose of this scoping review was to determine the prevalence and associated factors of PPD in Eastern, South-eastern, Western, and Southern Asian countries and analyze the cutoff points of the Edinburgh Postnatal Depression Scale (EPDS) used across these countries. Following Arksey and O'Malley’s five-step scoping review framework, the population was defined as mothers, the concept as the EPDS, and the context as the Asian region. A literature search was conducted using PubMed, Embase, CINAHL, PsycINFO, and Web of Science. The data analysis focused on demographic characteristics, EPDS cutoffs and features, PPD prevalence, and its associated factors. Nineteen studies were selected. Most countries used translated versions of the EPDS with demonstrated reliability and validity. The cutoff scores varied, with most using scores of 10 or higher. The prevalence of PPD ranged from 5.1% to 78.7%. Key associated factors for PPD included cultural factors such as relationships with in-laws and preferences for the newborn’s sex. To improve the accuracy of PPD screening in Asia, the EPDS should be used consistently, and appropriate cutoff criteria must be established. In addition, prevention strategies and programs that reflect the cultural characteristics and social context of Asia need to be developed for the early detection and prevention of PPD.
4.Prevalence and factors influencing postpartum depression and its culture-specific cutoffs for women in Asia: a scoping review
Bora MOON ; Hyun Kyoung KIM ; Ju-Hee NHO ; Hyunkyung CHOI ; ChaeWeon CHUNG ; Sook Jung KANG ; Ju Hee KIM ; Ju-Young LEE ; Sihyun PARK ; Gisoo SHIN ; Ju-Eun SONG ; Min Hee LEE ; Sue KIM
The Ewha Medical Journal 2025;48(1):e15-
The prevalence of postpartum depression (PPD) in Asia is reported to range from 13.53% to 22.31%. However, there remains a gap in the identification of PPD, particularly regarding cultural cutoff points. Therefore, the purpose of this scoping review was to determine the prevalence and associated factors of PPD in Eastern, South-eastern, Western, and Southern Asian countries and analyze the cutoff points of the Edinburgh Postnatal Depression Scale (EPDS) used across these countries. Following Arksey and O'Malley’s five-step scoping review framework, the population was defined as mothers, the concept as the EPDS, and the context as the Asian region. A literature search was conducted using PubMed, Embase, CINAHL, PsycINFO, and Web of Science. The data analysis focused on demographic characteristics, EPDS cutoffs and features, PPD prevalence, and its associated factors. Nineteen studies were selected. Most countries used translated versions of the EPDS with demonstrated reliability and validity. The cutoff scores varied, with most using scores of 10 or higher. The prevalence of PPD ranged from 5.1% to 78.7%. Key associated factors for PPD included cultural factors such as relationships with in-laws and preferences for the newborn’s sex. To improve the accuracy of PPD screening in Asia, the EPDS should be used consistently, and appropriate cutoff criteria must be established. In addition, prevention strategies and programs that reflect the cultural characteristics and social context of Asia need to be developed for the early detection and prevention of PPD.
5.Prevalence and factors influencing postpartum depression and its culture-specific cutoffs for women in Asia: a scoping review
Bora MOON ; Hyun Kyoung KIM ; Ju-Hee NHO ; Hyunkyung CHOI ; ChaeWeon CHUNG ; Sook Jung KANG ; Ju Hee KIM ; Ju-Young LEE ; Sihyun PARK ; Gisoo SHIN ; Ju-Eun SONG ; Min Hee LEE ; Sue KIM
The Ewha Medical Journal 2025;48(1):e15-
The prevalence of postpartum depression (PPD) in Asia is reported to range from 13.53% to 22.31%. However, there remains a gap in the identification of PPD, particularly regarding cultural cutoff points. Therefore, the purpose of this scoping review was to determine the prevalence and associated factors of PPD in Eastern, South-eastern, Western, and Southern Asian countries and analyze the cutoff points of the Edinburgh Postnatal Depression Scale (EPDS) used across these countries. Following Arksey and O'Malley’s five-step scoping review framework, the population was defined as mothers, the concept as the EPDS, and the context as the Asian region. A literature search was conducted using PubMed, Embase, CINAHL, PsycINFO, and Web of Science. The data analysis focused on demographic characteristics, EPDS cutoffs and features, PPD prevalence, and its associated factors. Nineteen studies were selected. Most countries used translated versions of the EPDS with demonstrated reliability and validity. The cutoff scores varied, with most using scores of 10 or higher. The prevalence of PPD ranged from 5.1% to 78.7%. Key associated factors for PPD included cultural factors such as relationships with in-laws and preferences for the newborn’s sex. To improve the accuracy of PPD screening in Asia, the EPDS should be used consistently, and appropriate cutoff criteria must be established. In addition, prevention strategies and programs that reflect the cultural characteristics and social context of Asia need to be developed for the early detection and prevention of PPD.
6.Development and validation of novel simple prognostic model for predicting mortality in Korean intensive care units using national insurance claims data
Ah Young LEEM ; Soyul HAN ; Kyung Soo CHUNG ; Su Hwan LEE ; Moo Suk PARK ; Bora LEE ; Young Sam KIM
The Korean Journal of Internal Medicine 2024;39(4):625-639
		                        		
		                        			 Background/Aims:
		                        			Intensive care unit (ICU) quality is largely determined by the mortality rate. Therefore, we aimed to develop and validate a novel prognostic model for predicting mortality in Korean ICUs, using national insurance claims data. 
		                        		
		                        			Methods:
		                        			Data were obtained from the health insurance claims database maintained by the Health Insurance Review and Assessment Service of South Korea. From patients who underwent the third ICU adequacy evaluation, 42,489 cases were enrolled and randomly divided into the derivation and validation cohorts. Using the models derived from the derivation cohort, we analyzed whether they accurately predicted death in the validation cohort. The models were verified using data from one general and two tertiary hospitals. 
		                        		
		                        			Results:
		                        			Two severity correction models were created from the derivation cohort data, by applying variables selected through statistical analysis, through clinical consensus, and from performing multiple logistic regression analysis. Model 1 included six categorical variables (age, sex, Charlson comorbidity index, ventilator use, hemodialysis or continuous renal replacement therapy, and vasopressor use). Model 2 additionally included presence/absence of ICU specialists and nursing grades. In external validation, the performance of models 1 and 2 for predicting in-hospital and ICU mortality was not inferior to that of pre-existing scoring systems. 
		                        		
		                        			Conclusions
		                        			The novel and simple models could predict in-hospital and ICU mortality and were not inferior compared to the pre-existing scoring systems. 
		                        		
		                        		
		                        		
		                        	
7.Machine-Learning Model for the Prediction of Hypoxaemia during Endoscopic Retrograde Cholangiopancreatography under Monitored Anaesthesia Care
Huapyong KANG ; Bora LEE ; Jung Hyun JO ; Hee Seung LEE ; Jeong Youp PARK ; Seungmin BANG ; Seung Woo PARK ; Si Young SONG ; Joonhyung PARK ; Hajin SHIM ; Jung Hyun LEE ; Eunho YANG ; Eun Hwa KIM ; Kwang Joon KIM ; Min-Soo KIM ; Moon Jae CHUNG
Yonsei Medical Journal 2023;64(1):25-34
		                        		
		                        			 Purpose:
		                        			Hypoxaemia is a significant adverse event during endoscopic retrograde cholangiopancreatography (ERCP) under monitored anaesthesia care (MAC); however, no model has been developed to predict hypoxaemia. We aimed to develop and compare logistic regression (LR) and machine learning (ML) models to predict hypoxaemia during ERCP under MAC. 
		                        		
		                        			Materials and Methods:
		                        			We collected patient data from our institutional ERCP database. The study population was randomly divided into training and test sets (7:3). Models were fit to training data and evaluated on unseen test data. The training set was further split into k-fold (k=5) for tuning hyperparameters, such as feature selection and early stopping. Models were trained over k loops; the i-th fold was set aside as a validation set in the i-th loop. Model performance was measured using area under the curve (AUC). 
		                        		
		                        			Results:
		                        			We identified 6114 cases of ERCP under MAC, with a total hypoxaemia rate of 5.9%. The LR model was established by combining eight variables and had a test AUC of 0.693. The ML and LR models were evaluated on 30 independent data splits. The average test AUC for LR was 0.7230, which improved to 0.7336 by adding eight more variables with an l 1 regularisation-based selection technique and ensembling the LRs and gradient boosting algorithm (GBM). The high-risk group was discriminated using the GBM ensemble model, with a sensitivity and specificity of 63.6% and 72.2%, respectively. 
		                        		
		                        			Conclusion
		                        			We established GBM ensemble model and LR model for risk prediction, which demonstrated good potential for preventing hypoxaemia during ERCP under MAC. 
		                        		
		                        		
		                        		
		                        	
8.A Study on the Mental Health and Burnout of Medical Staff Responding to the Coronavirus Disease 2019
Bora CHUNG ; Dayoung LEE ; Jung Hyun LEE ; So Yeon HYUN ; Songeun LEE ; Suk-Hyun LEE ; Minyoung SIM
Journal of Korean Neuropsychiatric Association 2023;62(3):118-125
		                        		
		                        			 Objectives:
		                        			This study was conducted to identify the level of mental health and burnout of medical staff at hospitals and public health centers, which responded to the coronavirus disease 2019 (COVID-19) in South Korea and to suggest appropriate management plans. 
		                        		
		                        			Methods:
		                        			The mental health and burnout levels of medical staff responding to COVID-19 were evaluated through an online survey conducted during the period July 1–14, 2021. To analyze the mental health status of the participants according to their demographic characteristics, the chisquare test, t-test, and an analysis of variance were conducted, followed by Scheffe post-hoc tests for pairwise comparisons. 
		                        		
		                        			Results:
		                        			A total of 773 participants were included in the study. An analysis of the clinically significant symptoms of the group showed that 29.5% had posttraumatic stress symptoms, 30.6% had depression, 15.8% had anxiety, 39.8% had somatic symptoms, and 4.5% were seen to be at risk of suicide. The average scores for burnout were as follows: 3.55±1.75 for emotional exhaustion, 2.68±1.73 for depersonalization, and 3.89±1.40 for personal accomplishment. Mental health problems and burnout were found to be high in women, those in the 20–39-year age bracket, those with less than 5 years of work experience, and public health center workers. 
		                        		
		                        			Conclusion
		                        			The medical staff responding to COVID-19 were observed to experience high levels of mental health and burnout problems. Work-related characteristics, such as younger age, lower work experience, and employment at a public health center, may have a negative impact on mental health and cause burnout. Therefore, individualized and systemic support for mental health and to prevent the burnout of medical staff responding to cases of COVID-19 is needed. 
		                        		
		                        		
		                        		
		                        	
9.Plasmapheresis for a Female with Cryptogenic New-Onset Refractory Status Epilepticus Not Benefiting from Monoclonal Antibody Therapy
Hongmin HA ; Young-Soo KIM ; Do-Hyung KIM ; Tae-Won YANG ; Bora CHUNG ; Chan Hyun LEE ; Eunji KIM ; Oh-Young KWON
Journal of the Korean Neurological Association 2022;40(2):176-180
		                        		
		                        			
		                        			 Monoclonal antibodies are pure antibodies that react to a specific epitope. Plasmapheresis is a treatment that separates and eliminates disease-causing substances before replacing the blood with plasma. Plasmapheresis has insufficient evidence for treating new-onset refractory status epilepticus (NORSE). Sequential plasmaphereses gradually improved a female cryptogenic NORSE patient who did not benefit from monoclonal antibody treatment. 
		                        		
		                        		
		                        		
		                        	
            
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