The chain mediating role of social support and coping strategy: Type D personality and psychological distress among Chinese COPD patients

This study examines how coping strategies and social support mediate the relationship between type D personality and psychological distress in COPD patients. A sample of 351 patients completed surveys on demographics, psychological distress (Kessler Psychological Distress Scale), social support (Social Support Self-Rating Scale), coping strategies (Chinese version of Medical Coping Modes Questionnaire), and type D personality (Type D Personality Scale). Using structural equation modeling (SEM) via AMOS 23.0 and SPSS, results showed that confrontation and acceptance-resignation coping strategies, as well as type D personality, were positively correlated with psychological distress, while social support was negatively correlated. SEM estimates revealed a chain mediating effect of social support and coping strategies between type D personality and psychological distress. Enhancing social support and coping strategies is crucial for reducing psychological distress, especially in COPD patients with type D personality.