Purpose
This study was conducted to identify the factors affecting to the performance of person-centered care among intensive care unit (ICU) nurses based on ecological perspectives, and provide basic data for the development of educational programs to promote performance of person-centered care.

Method
This study used a cross-sectional survey. The participants were 172 ICU nurses working in 8 hospitals in B city. The questionnaire survey was conducted between July and August, 2020.
The collected data was analyzed using descriptive statistics, χ-test, independent t-test, and Pearson‘s correlation coefficient with SPSS 25.0 program. The factors affecting person-centered care were analyzed using hierarchical multiple regression.


Result
There was a statistically significant difference in performance of person-centered care depending on the total nursing experiences among the general characteristics of the subjects(<5years)(p=.008). Person-centered care was significantly and positively correlated with compassion satisfaction(r=.478, p<.001), communication competence(r=.611, p<.001), and team work(r=.551, p<.001). In hierarchical multiple regression, all of 3 models were examined by intrapersonal, interpersonal, and organizational factors in ecological model. In the first model, including total nursing experiences and compassion satisfaction, they were significant factors explaining performance of person-centered care. In the second model adding communication competence, and it was revealed the most significant factors of them. In the final model adding team work, accounted for 44.1% of variance in performance of person-centered care among intensive care unit nurses(p<.001).


Conclusion
The findings of this study indicate that strategies for enhancing compassion satisfaction, communication competence, and team work are necessary to promote performance of person-centered care among intensive care unit nurses. In addition, this study can be particularly meaningful in providing basic data for nursing education and future intervention development research. Further studies should be conducted to develop nursing interventions to improve performance of person-centered care among intensive care unit nurses.