[Exploring Stress, Sleep Disturbances, and Fatigue Among Primary Family Caregivers in the ICU].

This study provided healthcare professionals with important information to understand the psychological symptoms of PFCs. Future studies should identify the stressors of this caregiver group and explore their psychological symptoms during different hospitalization periods. Further interventions should be developed to help PFCs cope with stress and improve stress-related symptoms such as sleep quality and fatigue severity.