Table 4.

Result of logistic regression analysis of exposure to SHS at home by place of residence

	Rural	Urban
	OR (95% CI)	OR (95% CI)
Sex
Male	1.00	1.00
Female	1.20 (1.10 to 1.30)	1.09 (0.99 to 1.20)
Age group
15–24	1.00	1.00
25–44	0.91 (0.84 to 1.00)	0.76 (0.68 to 0.84)
45–64	0.74 (0.66 to 0.82)	0.54 (0.47 to 0.60)
65+	0.55 (0.47 to 0.65)	0.48 (0.39 to 0.58)
Education
No formal education	1.00	1.00
Less than primary	0.97 (0.87 to 1.09)	0.81 (0.69 to 0.95)
Primary but less than secondary	0.80 (0.73 to 0.88)	0.67 (0.59 to 0.76)
Secondary and above	0.49 (0.44 to 0.54)	0.34 (0.30 to 0.39)
Occupation
Government and non-government employee	1.00	1.00
Self-employed	1.12 (1.02 to 1.23)	1.22 (1.10 to 1.35)
Student	1.20 (1.05 to 1.36)	0.81 (0.70 to 0.94)
Homemaker	0.99 (0.89 to 1.09)	1.05 (0.94 to 1.18)
Retired or unemployed	1.17 (1.00 to 1.37)	1.15 (0.96 to 1.38)
National region
North	1.00	1.00
Central	0.75 (0.66 to 0.85)	1.07 (0.96 to 1.20)
East	0.45 (0.41 to 0.51)	0.88 (0.79 to 0.99)
Northeast	0.52 (0.48 to 0.56)	1.55 (1.39 to 1.74)
West	0.31 (0.28 to 0.34)	0.54 (0.49 to 0.60)
South	0.11 (0.10 to 0.12)	0.18 (0.16 to 0.20)
Antismoking messages in newspaper or magazines
No	1.00	1.00
Yes	0.87 (0.81 to 0.94)	0.85 (0.78 to 0.92)
Antismoking messages in TV/radio
No	1.00	1.00
Yes	1.02 (0.95 to 1.09)	0.99 (0.91 to 1.08)
Knowledge that SHS exposure is harmful
No	1.00	1.00
Yes	0.92 (0.84 to 1.01)	1.05 (0.93 to 1.19)
Knowledge that smoking causes stroke
No	1.00	1.00
Yes	0.89 (0.83 to 0.96)	0.91 (0.84 to 0.99)
Knowledge that smoking causes heart attack
No	1.00	1.00
Yes	1.06 (0.98 to 1.15)	1.15 (1.04 to 1.28)
Knowledge that smoking causes lung cancer
No	1.00	1.00
Yes	1.14 (1.02 to 1.27)	0.97 (0.84 to 1.12)

SHS, second-hand tobacco smoke.