Purpose
This study aimed to identify factors influencing communication competence among hospital nurses. Methods: The participants were 136 nurses working at five general or tertiary hospitals with over 100 beds in Busan, Ulsan, and Geoje Island. Data were collected using structured self-report online questionnaires from July 18 to August 31, 2023. The data were analyzed using descriptive statistics, the t-test, one-way analysis of variance, the Scheffé test, Pearson's correlation coefficients, and stepwise regression analysis using IBM SPSS version 25.0. Results: Self-awareness (β=.43, p<.001), a relationship-oriented organizational culture (β=.34, p<.001), working in a surgical ward (β=.19, p=.003), communication efficacy (β=.17, p=.011), hierarchy-oriented organizational culture (β=.16, p=.011), and working in a special unit (β=-.14, p=.023) were factors that significantly influenced nurses' communication competence. The model explained 52% of the variance in communication competence (F=28.43, p<.001) Conclusion: To improve communication competence in hospital nurses, healthcare institutions should provide learning opportunities to improve nurses’ self-awareness and communication efficacy. It is also essential to establish rules and order within a hierarchy-oriented organizational culture, while simultaneously promoting a relationship-oriented organizational culture based on trust and respect among colleagues.

Purpose
This study aimed to identify the effects of shared leadership, communication skills, and team effectiveness, as perceived by nurses and nursing assistants in comprehensive nursing service units.
Methods
A cross-sectional research design was adopted, and the sample included 306 nurses, nurse assistants, and caregivers working in nine hospitals with fewer than 500 beds in two South Korean cities. The data were analyzed using descriptive statistics, t-tests, ANOVA, Pearson’s correlation coefficient, and four-step hierarchical regression analysis.
Results
The factors influencing team effectiveness in the hierarchal multiple regression analysis were shared leadership (β=.57, p<.001) and communication skills (β=.18, p<.001). These factors explained 49% of the total variance.
Conclusion
To enhance team effectiveness in compressive nursing service units, educational programs focusing on shared leadership and communication skills among nurses, nursing assistants, and caregivers must be developed.