Effects of a Nurse-Led Comprehensive Intervention on Frailty and Self-Management Behaviors in Patients Undergoing Peritoneal Dialysis

This study aims to evaluate the effects of a comprehensive nursing intervention based on the Integrated Theory of Health Behavior Change (ITHBC) on patients undergoing peritoneal dialysis with frailty syndrome. The main questions it aims to answer include: Can the ITHBC-based comprehensive nursing intervention improve patients' frailty status? Can the intervention reduce patients' nutritional risk? Can the intervention enhance patients' exercise self-efficacy, social support, and self-management behaviors? Researchers will compare the ITHBC-based comprehensive nursing intervention (intervention group) with routine care (control group) to assess the effectiveness of the intervention program. Participants: The intervention group receives the ITHBC-based comprehensive nursing intervention (including personalized assessment, knowledge and belief reinforcement, skill development, goal setting and follow-up, and social support promotion) in addition to routine care for 3 months The control group receives routine care (including admission education, standardized in-hospital health education, and monthly outpatient or telephone follow-up for 3 months) Data are collected at baseline (T0), 1 month (T1), and 3 months (T2) post-intervention Outcome measures include: frailty scores, nutritional risk scores, exercise self-efficacy scores, social support scores, and self-management behavior scores