Table 1.
Comparison of demographic factors between the 2 groups of patients
| Demographic factors | Intervention group (n = 120) | Control group (n = 120) | p value | |
|---|---|---|---|---|
| Age, years | 65.42±0.62 | 64.65±0.88 | 0.832 | |
| Gender (male/female) | 72/48 | 80/40 | 0.687 | |
| Degree of education (primary school/junior high school/higher than junior high school) | 42/46/32 | 46/40/34 | 0.725 | |
| Current smokers or previous smokers, n (%) | 108 (90.00) | 104 (86.67) | 0.516 | |
| Duration of the disease, years | 16.50±4.32 | 15.90±5.02 | 0.771 | |
| COPD severity classification stage | (0/I/II/III/IV) | 12/27/67/14 | 10/25/70/15 | 0.692 |
COPD, chronic obstructive pulmonary disease.