Abstract: One of the hospitals strategies to achieve their goals is to provide support for their nurses, through the visible relationship between them and their First Line Nurse Managers (FLNMs). Aim: to examine the relationship between FLNMs support and staff nurses' performance outcomes. Methods: A descriptive, correlational research design was conducted at Kafr El-Dawar General Hospital, at EL-Beheira Governorate- Egypt. Subjects: it is composed of two groups: FLNMs (n=44) and staff nurses (n=250). Tools: Inventory of Managerial Supportive Behaviors (IMSB), Utrecht Work Engagement Scale (UWES-9), Turnover intention scale, and Group Cohesion Scale-Revised (GCS-R). Results: There were highly significant relationships between Managerial Supportive Behaviors (MSB) and performance outcomes, (work engagement, turnover intention, and work group cohesion), where (p-value ≤ 0.01). Moreover, there were statistically significant differences between the FLNMs and staff nurses for total MSB and all its dimensions; total work engagement and total work group cohesion, where (P ≤ 0.05). Also, there was no statistically significant difference between the FLNMs and staff nurses for total turnover intention. Conclusion: MSB was related to performance outcomes (work engagement, turnover intention, and work group cohesion). Recommendations: developing strategy for FLNMs and staff nurses to enhance work engagement, work group cohesion and reduce turnover intention, thus improve performance outcomes. Keywords: managerial supportive behaviors, performance outcomes, work engagement, turnover intention, work group cohesion. Title: RELATIONSHIP BETWEEN FIRST LINE NURSE MANAGERS' SUPPORT AND STAFF NURSES' PERFORMANCE OUTCOMES Author: Asmahan Ramadan Abd- Elhamid, Reem Mabrouk Abd El Rahman, Mervat Abd El Monem Aref International Journal of Novel Research in Healthcare and Nursing ISSN 2394-7330 Vol. 10, Issue 2, May 2023 - August 2023 Page No: 1-15 Novelty Journals Website: www.noveltyjournals.com Published Date: 03-May-2023 DOI: https://doi.org/10.5281/zenodo.7890580 Paper Download Link (Source) https://www.noveltyjournals.com/upload/paper/RELATIONSHIP%20BETWEEN%20FIRST-03052023-2.pdf

International Journal of Novel Research in Healthcare and Nursing, ISSN 2394-7330, Novelty Journals, Website: www.noveltyjournals.com