<p>Results of robust regression analysis.</p>

This study examined the associations between ProQoL, sleep quality, occupational stress, and turnover intention among ED nurses, and identified factors associated with turnover intention.</p> <p>Methods</p><p>The study, conducted in 2025, employed a descriptive cross-sectional design and included 180 nurses in the ED of university hospitals in Tehran Province.

Data were gathered using the Professional Quality of Life Scale (ProQOL), the Pittsburgh Sleep Quality Index (PSQI), the Expanded Nursing Stress Scale (ENSS), and the Turnover Intention Questionnaire. Descriptive statistics, Spearman rank correlation, Mann-Whitney U and Kruskal-Wallis H tests, and robust regression were employed in the data analysis.</p> <p>Results</p><p>The mean score of turnover intention was 49.26. Turnover intention was significantly associated with sleep quality (r = 0.329), job stress (r = 0.408), burnout (r = 0.575), compassion satisfaction (r = −0.555), and secondary traumatic stress (STS) (r = 0.594) (p < 0.01).