From: A prospective observational study on acute exacerbation of chronic obstructive pulmonary disease in pulmonology department of tertiary care hospital
Occupational exposure
Male (%)
Female (%)
Total (%)
Biomass exposure
36 (18.3)
10 (5.1)
46 (23.3)
Mineral dust
78 (39.6)
88 (44.7)
Organic dust
41 (20.8)
2 (1.0)
43 (21.8)
No Exposure
12 (6.1)
8 (4.1)
20 (10.1)