Results
Mean and standard deviation for age in control and
trial groups were found to be 64.1 (9.1) and 65.2 (8.0),
respectively. Demographic characteristics of subjects in both groups are displayed in Table 1. No significant differences were found between mean self-care scores of control and trial groups prior to intervention in different groups of age, gender, marital status, history of smoking, educational status, occupation, residence, disease intensity, level of dyspnea, and prior hospitalization.