| Group 1 (n = 45) | Group 2 (n = 45) | P-value | Sig. |
---|---|---|---|---|
Sex | ||||
 Male | 31 (68.9%) | 26 (57.8%) | 0.4 | NS |
 Female | 14 (31.1%) | 19 (42.2%) | ||
Age | ||||
 Range | 50–78 | 51–75 | 0.5 | NS |
 Mean ± SD | 61.2 ± 7.1 | 62.1 ± 7.2 | ||
Residence | ||||
 Rural | 18 (40%) | 28 (62.2%) | 0.06 | NS |
 Urban | 27 (60%) | 17 (37.8%) | ||
Exposure to biomass | ||||
 Yes | 33 (73.3%) | 32 (71.1%) | 0.9 | NS |
 No | 12 (26.7%) | 13 (28.9%) | ||
Smoking | ||||
 Smoker | 29 (64.4%) | 27 (60%) | 0.8 | NS |
 Non-smoker | 16 (35.6%) | 18 (40%) | ||
Smoking index | ||||
 Mean/SD | 385.3 (359.2) | 228.8 (269.9) | 0.05 | S |
Exacerbation frequency | ||||
 Yes | 22 (48.9%) |  |  |  |
 No | 23 (51.1%) |  |  |  |
Respiratory failure | ||||
 Yes | 18 (40%) |  |  |  |
 No | 27 (60%) |  |  |  |