Table 3.

Summary of Hierarchical Logistic Regression Model.

Variable	Block 1			Block 2
	OR	95% CI		OR	95% CI
		Lower	Upper		Lower	Upper
Smoking status
Past smoker	0.93	0.73	1.18	0.94	0.71	1.25
Current smoker	0.60a	0.46	0.8	0.63b	0.46	0.86
Age				1.82a	1.49	2.22
Female				1	0.79	1.26
Education (Ref: no formal)
Primary				1.14	0.92	1.4
Secondary and tertiary				0.63c	0.43	0.91
Household Income (Ref: <300)
300-800				0.7b	0.57	0.87
>800				0.53a	0.4	0.7
CMCs (Ref: no CMC)
1-2 CMCs				1.2	0.92	1.57
3+ CMCs				1.45c	1.09	1.94
Model statistics
χ2	13.61			123.66
df	2			10
Model significance	<0.001			<0.001

Abbreviations: CI, confidence interval; CMCs, chronic medical conditions; OR, odds ratio.

^a P < .001.

^b P < .01.

^c P ≤ .05.