1.The Impact of Clinical Competence and Perception of Clinical Ladder System on Organizational Commitment among Nurses at a General Tertiary Hospital
Yeon Hee SHIN ; Mi Ra LEE ; Sung Nam KIM ; Min Jung KIM ; Ae Jin KIM ; Hyun Ja KIM ; Ji Yoon KANG
Journal of Korean Academy of Nursing Administration 2025;31(1):120-131
Purpose:
This study aimed to evaluate the performance of a clinical ladder system in a tertiary hospital by examining how nurses' clinical competence and perceptions of the system affect organizational commitment.
Methods:
The study involved 394 nurses working at a tertiary hospital. Data were collected from May 3 to July 10, 2023, using a self-reported questionnaire. Statistical analyses, including descriptive statistics, independent t-tests, one-way ANOVA, Kruskal-Wallis test, Scheffé post-hoc test, Pearson correlation, and hierarchical regression analysis, were performed using SPSS 27.0.
Results:
Nurses who applied for promotion to the CN III level and current CN III nurses reported higher clinical competence, perceptions of the clinical ladder system, and organizational commitment than those who did not and those at lower levels (p<.001). A positive correlation existed among all independent variables.Controlling for general characteristics, the effects of clinical competence and perceptions of the clinical ladder system explained 49% of organizational commitment variance (Adjusted R 2 =.49, F=33.43, p<.001).
Conclusion
Greater clinical competence and positive perceptions of the clinical ladder system are likely to enhance organizational commitment, emphasizing its effectiveness in fostering better organizational outcomes.
2.A non-face-to-face diabetes self-management program based on self-efficacy theory and health literacy: a non-randomized controlled trial
Journal of Korean Academy of Nursing 2025;55(2):165-177
Purpose:
This study aimed to assess the impact of a non-face-to-face diabetes self-management program based on self-efficacy theory and focusing on health literacy.
Methods:
A quasi-experimental, nonequivalent control group pre–post design was used. Participants from a community health promotion center were included if they (1) were 30–70 years of age, (2) had type 2 diabetes with glycated hemoglobin (HbA1c) ≥6.5%, and (3) had internet access via computers or mobile devices. The 8-week program was developed based on self-efficacy theory, and it included virtual education using an online platform, telephone counseling, videos, and social networking site activities considering health literacy. Fasting blood glucose levels, HbA1c levels, diabetes self-efficacy, social support, depression, and self-management behaviors were assessed. Data were analyzed using the independent t-test, paired t-test, and others.
Results:
Post-test results showed that the intervention group had significantly lower fasting blood glucose levels and improved diabetes self-efficacy, social support, and self-management behaviors compared with the control group. An analysis of the pre-to-post changes in scores indicated that the intervention group had significantly greater improvements in fasting blood glucose levels, diabetes self-efficacy, and overall diabetes self-management behaviors than those observed in the control group.
Conclusion
Non-face-to-face programs based on self-efficacy theory that consider health literacy can provide effective diabetes management support to patients when in-person diabetes management at community health centers is challenging.
3.Factors Influencing the Mental Well-being of Shift Nurses
Journal of Korean Academy of Psychiatric and Mental Health Nursing 2025;34(1):54-63
Purpose:
The study aimed to provide essential baseline data for developing measures to enhance the mental well-being of shift-working nurses.
Methods:
The data were collected from September 11 to 30, 2024, among 151 shift-working nurses at hospitals nationwide. The collected data were analyzed using descriptive statistics, t-tests, ANOVA, Scheffé tests, Pearson's correlation, and hierarchical multiple regression analysis with IBM SPSS Statistics version 30.0.
Results:
A statistically significant correlation was identified between the primary variables of interest: quality of sleep, health-promoting behaviors, and mental well-being. The findings indicated that poor sleep quality (β=-.32, p<.001) and health-promoting behaviors (β=.55, p<.001) were significant factors affecting the mental well-being of shift-working nurses. The explanatory power of these variables was 56.0%.
Conclusion
This study findings confirmed that the quality of sleep and health-promoting behaviors are related to the mental well-being of shift-working nurses and simultaneously influence it. In other words, to promote the mental health of shift-working nurses, it is essential for nurse managers to focus on managing sleep quality and for an organizational culture that encourages health-promoting activities to be established.
4.Effects of an intervention combining warm therapy with a digital distraction app on pain, stress, and satisfaction during intravenous catheterization in South Korea: a randomized controlled trial
Jae-Kyeum LEE ; Ki-Yong KIM ; Yean-Hee JEONG ; Yu-Jin LEE ; Min-Ho LEE ; Myung-Haeng HUR
Journal of Korean Biological Nursing Science 2025;27(2):191-202
Purpose:
This study aimed to evaluate the effects of an intervention combining warm therapy (via a thermoelectric-element tourniquet) and a distraction-based approach (via an augmented reality-based app known as TWINKLE) on pain, stress, and satisfaction during intravenous catheterization in adults.
Methods:
A randomized controlled trial was conducted in South Korea with 93 healthy adults who were randomly assigned to one of three groups: the experimental group (TWINKLE app with warm therapy), the comparison group (warm therapy only), and the control group (no treatment). Participants’ pain, stress, and satisfaction, as well as practitioner satisfaction, were measured after the intervention.
Results:
Pain scores differed significantly among the three groups (F = 5.68, p = .005), with the experimental group showing significantly lower scores than the control group (p = .003). Stress levels were also significantly lower in the experimental group than in the other groups (F = 9.42, p < .001). Participant satisfaction was highest in the experimental group (F = 17.65, p < .001), while nurse satisfaction was significantly higher in the comparison group than in the experimental and control groups (F = 67.91, p < .001), suggesting that the additional distraction intervention may have increased nurses’ workload.
Conclusion
Combining digital distraction with warm therapy using a thermoelectric-element tourniquet effectively reduces pain and stress while improving patient satisfaction during intravenous catheterization. Further research is needed to optimize this approach, with a particular focus on targeting digital distraction interventions to patients with higher levels of procedural anxiety and finding ways to minimize practitioner workload.
5.Massive Closures of Pediatric Clinics and an Exodus of Pediatricians in Korea During the COVID-19 Pandemic:What Career Paths Did Closed-Down Pediatricians Choose?
Jin-Won NOH ; Jun Hyuk KOO ; Min-Hee HEO ; Jin Yong LEE
Journal of Korean Medical Science 2025;40(14):e71-
Background:
This study aimed to investigate the size and characteristics of pediatric clinic closure during the coronavirus disease 2019 (COVID-19) period and what career paths pediatricians chose after closure.
Methods:
This study utilized database of the Health Insurance Review and Assessment Service from 2013 to 2022. We examined the trend of the number of pediatric clinics in operation over the past 10 years. Additionally, the study identified factors associated with the closure of pediatric clinics during the COVID-19 pandemic. Furthermore, the affiliations of representatives who closed their clinics during the pandemic were tracked as of December 2022.
Results:
In 2019, there were 2,229 pediatric clinics. During the COVID-19 pandemic, 364 (16.3%) of these clinics closed. Factors associated with the closure of pediatric clinics included pediatricians over the age of 65, operational periods of less than 5 years, and lower levels of medical expenses. As of 2022, among the 364 clinics that closed, 108 pediatricians (29.7%) retired or ceased working, and 127 pediatricians (34.9%) still employed in pediatricrelated healthcare institutions. A concerning phenomenon is that the remaining 129 pediatricians (35.4%) transitioned to unrelated healthcare institutions.
Conclusion
We have identified the magnitude and factors contributing to pediatric clinic closures. A more pressing issue is that over one-third of the pediatricians have transitioned to non-specialty fields following the closure of their clinics. Pediatrics represents a critical and essential medical field. Health authorities must develop strategies to prevent the avoidable collapse and subsequent exodus of pediatricians.
6.Sentinel Safety Monitoring System for Adverse Events of Special Interest Associated With Non-NIP Vaccines in Korea
Hakjun HYUN ; Jung Yeon HEO ; Yu Jung CHOI ; Eliel NHAM ; Jin Gu YOON ; Ji Yun NOH ; Joon Young SONG ; Woo Joo KIM ; Won Suk CHOI ; Min Joo CHOI ; Yu Bin SEO ; Jacob LEE ; Hee Jin CHEONG
Journal of Korean Medical Science 2025;40(16):e152-
South Korea’s current vaccination policies leave a surveillance gap for non-National Immunization Program (NIP) vaccines. In this study, we proposed a sentinel surveillance approach for monitoring the safety of non-NIP vaccines. Vaccination data were collected retrospectively among patients hospitalized with pre-defined adverse events of special interest (AESI) by reviewing electronic medical records in five university hospitals. This approach incorporates expert assessment to determine the causal relationship. We confirmed that 16 patients had received non-NIP vaccines among 860 patients diagnosed with AESI.We concluded one case of preeclampsia was possibly related to tetanus-diphtheria-pertussis vaccination. We propose a multi-hospital-based, retrospective assessment system for predefined AESIs as an alternative to active vaccine safety monitoring method. These efforts are expected to enhance both the accuracy and timeliness of safety monitoring in South Korea.
7.A Nationwide Survey on Infection Prevention and Control in Acute Care Hospitals of Korea
Sun Hee NA ; Yubin SEO ; Hye Jin SHI ; In Sun HWANG ; Kyong A SHIN ; Kwang Yul SON ; Sung Ran KIM ; Myoungjin SHIN ; Hee-jung SON ; Ji Youn CHOI ; Heekyung CHUN ; Sook-Kyung PARK ; Jeongsuk SONG ; Namyi KIM ; Jacob LEE ; Joong Sik EOM
Journal of Korean Medical Science 2025;40(4):e41-
Background:
Healthcare-associated infections impose a significant burden on antibiotic usage, healthcare expenditures, and morbidity. Therefore, it is crucial to revise policies to minimize such losses. This nationwide survey aimed to evaluate infection prevention and control (IPC) components in healthcare facilities and encourage improvements in acute care hospitals with inadequate infection prevention settings. This study aims to enhance the infection control capabilities of healthcare facilities.
Methods:
From December 27, 2021, to May 13, 2022, we conducted a survey of 1,767 acute care hospitals in the Republic of Korea. A survey was conducted to evaluate the infection control components in 1,767 acute care hospitals. Infection control officers provided direct responses to a systematically developed questionnaire. Subsequently, 10% of the respondents were randomly selected for the site investigation.
Results:
Overall, 1,197 (67.7%) hospitals responded to the online survey. On-site investigations were conducted at 125 hospitals. Hospitals with ≥ 150 beds are advised to have an IPC team under Article 3 of the Medical Service Act; however, only 87.0% (598/687) of hospitals with ≥ 100 beds had one. Conversely, 22.7% (116/510) of hospitals with < 100 beds had an IPC team. Regulations for hand hygiene, waste management, healthcare worker protection and safety, environmental cleaning, standard precautions, and prevention of the transmission of multidrug-resistant pathogens were present in 84.2%, 80.1%, 77.4%, 76.2%, 75.8%, and 63.5% of the hospitals, respectively. Hospitals with < 100 beds had low availability of all categories of standard operating procedures.
Conclusion
This study is the first national survey of acute care hospitals in the Republic of Korea. The data presented in the current study will improve the understanding of IPC status and will help establish a survey system. Our survey provides a basis for improving policies related to IPC in healthcare facilities.
8.Second Allogeneic Hematopoietic Cell Transplantation Following Graft Failure in Children
Eun Sang YI ; Hee Young JU ; Ji Won LEE ; Ki Woong SUNG ; Jin HUR ; Keon Hee YOO
Journal of Korean Medical Science 2025;40(10):e48-
Background:
Graft failure (GF) is a major complication of allogeneic hematopoietic cell transplantation (allo-HCT). Secondary transplantation has been recognized as a potential curative intervention.
Methods:
This study aimed to investigate the characteristics and outcomes of salvage transplantation by analyzing the patients who underwent a second HCT for GF following the initial allo-HCT between 1998 and 2020.
Results:
Overall, 23 recipients were identified, including 14 and 9 individuals with primary and secondary GF, respectively. Nine recipients underwent a second transplant from the same donor. Familial mismatched donors predominated in the second HCT (86.9%), with reduced-intensity conditioning as the prevailing approach (60.9%). Neutrophil engraftment occurred in 17 patients (73.9%) following the second HCT at a median of 17 days (range: 9–58 days) post-transplantation. However, secondary GF subsequently occurred in 5 patients, and successful engraftment following salvage transplantation was achieved in 12 (52.2%) patients. In the entire study population, the estimated 5-year probability of overall survival (OS) and treatment-related mortality (TRM) were 30.4% and 58.5%, respectively. Among patients who achieved successful engraftment following a second transplantation, the OS and TRM rates were 41.7% and 33.3%, respectively, indicating a trend toward better OS and significantly lower TRM compared to those with GF. Notably, 17 patients died, with infection being the most common cause (n = 12), irrespective of the engraftment status.
Conclusion
A successful engraftment following a second allo-HCT reduced the TRM; however, the OS remained suboptimal. The effective control of infectious diseases remains crucial for patients with GF, regardless of the engraftment status following salvage transplantation.
9.Correlation Between the Distance From Donors and Ischemic Time in Heart Transplantation of Korea and Its Clinical Impact
Jung Yeon JIN ; Chee-hoon LEE ; Mi Hee LIM ; Soo Yong LEE ; Min Ho JU ; Hyung Gon JE
Journal of Korean Medical Science 2025;40(11):e60-
Background:
The heart donor allocation system in South Korea is divided into three regions, with priority given to recipients within the same region over those in other regions of the same tier. It is commonly believed that heart transplantation (HT) within the same region can reduce ischemic time (IT), although its clinical impact remains unclear. The purpose of this study is to compare the characteristics and outcomes of intra-region HT and inter-region HT.
Methods:
From 2014 to 2022, a total of 115 adult patients underwent isolated HT at a tertiary hospital. Of these, 58 recipients (54.5 ± 10.3 years, female, 36.2%) underwent intra-region HT and 57 recipients (53.9 ± 14.1 years, female, 31.6%) underwent inter-region HT. Extracorporeal membrane oxygenation-bridged HTs accounted for 50.0% and 54.4% of cases, respectively (P = 0.638). There were no differences in preoperative characteristics between the two groups.
Results:
The median inter-hospital distance (38.0 [32.0–112.0] km vs. 351.0 [300.0–390.5] km, P < 0.001) and total IT (153 [123–170] minute vs. 265 [243–298] minute, P < 0.001) were longer in the inter-region group than intra-region group. Despite these differences, both groups showed similar clinical outcomes. The 30-day mortality rates were 5.2% and 5.3% (P < 0.99), respectively. There were no differences in postoperative cardiac index, early adverse outcomes, or long-term survival between the two groups. The inter-hospital distance and cold IT showed a strong positive correlation (time [minute] = 39.462 + 0.410 × distance [km]).
Conclusion
Despite the difference in IT, there was no difference in postoperative outcomes between the two groups. Based on these findings, the effect of donor location on the outcomes of HT in South Korea is not considered significant.
10.Rapid Recovery From SARS-CoV-2Infection Among Immunocompromised Children Despite Limited Neutralizing Antibody Response: A Virologic and Sero-Immunologic Analysis of a Single-Center Cohort
Doo Ri KIM ; Byoung Kwon PARK ; Jin Yang BAEK ; Areum SHIN ; Ji Won LEE ; Hee Young JU ; Hee Won CHO ; Keon Hee YOO ; Ki Woong SUNG ; Chae-Hong JEONG ; Tae Yeul KIM ; June-Young KOH ; Jae-Hoon KO ; Yae-Jean KIM
Journal of Korean Medical Science 2025;40(12):e52-
Background:
Immunocompromised (IC) pediatric patients are at increased risk of severe acute respiratory syndrome coronavirus 2 infection, but the viral kinetics and seroimmunologic response in pediatric IC patients are not fully understood.
Methods:
From April to June 2022, a prospective cohort study was conducted. IC pediatric patients hospitalized for coronavirus disease 2019 (COVID-19) were enrolled. Serial saliva swab and serum specimens were subjected to reverse transcription polymerase chain reaction assays with mutation sequencing, viral culture, anti-spike-protein, anti-nucleocapsid antibody assays, plaque reduction neutralization test (PRNT) and multiplex cytokine assays.
Results:
Eleven IC children were evaluated. Their COVID-19 symptoms resolved promptly (median, 2.5 days; interquartile range, 2.0–4.3). Saliva swab specimens contained lower viral loads than nasopharyngeal swabs (P = 0.008). All cases were BA.2 infection, and 45.5% tested negative within 14 days by saliva swab from symptom onset. Eight (72.7%) showed a time-dependent increase in BA.2 PRNT titers, followed by rapid waning. Multiplex cytokine assays revealed that monocyte/macrophage activation and Th 1 responses were comparable to those of non-IC adults. Activation of interleukin (IL)-1Ra and IL-6 was brief, and IL-17A was suppressed. Activated interferon (IFN)-γ and IL-18/IL-1F4 signals were observed.
Conclusion
IC pediatric patients rapidly recovered from COVID-19 with low viral loads.Antibody response was limited, but cytokine analysis suggested an enhanced IFN-γ- and IL-18-mediated immune response without excessive activation of inflammatory cascades. To validate our observation, immune cell-based functional studies need to be conducted among IC and non-IC children.

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