SEM

Purpose: We aimed to assess the influence of anxiety and depression on the physical and mental quality of life (QoL) in patient with chronic obstructive pulmonary disease (COPD) and caregiver dyads, detect the simultaneous effect of anxiety and depression of each partner on the other’s QoL and determine the dyadic patterns. Methods: A cross-sectional descriptive design was used. The actor–partner interdependence model estimated by structural equation modeling was used for the dyadic analysis.