Table 3:

Determinants of COPD (adjusted model)

	GOLD		LLN
	OR(95) CI)	P Value	OR(95) CI)	P Value
Age
40-49 Years	1		1
50-59 Years	2.2 (1.6-3.0)	0.000	1.9 (1.4 - 2.7)	0.000
>=60 Years	4.7 (3.5-6.4)	0.000	2.9 (2.1 - 4.0)	0.000
Illiterate	1.4 (1.1-1.7)	0.008	1.4 (1.1 - 1.8)	0.005
BMI
Normal	1		1
Underweight	1.9 (1.5-2.4)	0.000	2.4 (1.8 - 3.1)	0.000
Overweight	0.7 (0.5-1.0)	0.066	0.8 (0.6 - 1.2)	0.389
Smoking Status				0.000
Non-Smoker	1		1
Current	5.5 (4.2-7.2)	0.000	5.3 (3.9 - 7.1)	0.000
Former	4.5 (3.3-6.0)	0.000	3.5 (2.5 - 4.8)	0.000
Solid Fuel Use	1.5 (1.2-1.9)	0.001	1.3 (1.0 - 1.8)	0.031
H/O of Asthma	6.9 (4.9-9.5)	0.000	7.7 (5.5 - 10.7)	0.000

In conditional logistic regression, variables that did not contribute in the model further (sex, area of residence, occupation, household income) were not shown in the table.