Table 2.

Final (most parsimonious) ordinal regression model of longest quit attempt

	B	SE	z	p	Odds ratio	95% CI
Quit smoking ≥24 hr, past year, 0 = “no”, 1 = “yes”	1.38	0.38	3.63	<.001	3.99	1.89	8.42
Number of different methods tried for quitting, ever	0.75	0.38	1.96	.05	2.12	1.00	4.50
Permissiveness of home smoking rules, 1 = low, 4 = high	−0.83	0.23	−3.63	<.001	0.44	0.28	0.68
Thinks SHSe can harm kids’ health, 0 = not a lot, 1 = a lot	−0.51	0.52	−0.97	.332	0.60	0.22	1.68
Group, 0 = control, 1 = counseling	−0.20	0.59	−0.34	.735	0.82	0.26	2.61
Group × Harm	1.87	0.76	2.47	.014	6.50	1.47	28.74
Group × Rules	0.85	0.31	2.69	.007	2.33	1.26	4.31

Note. Model χ² (7) = 51.11; pseudo R² = .15; SHSe = secondhand smoke exposure.