Table B:

Predictors of Quit Success (Six-Month Criteria) Among Participants that had made a Quit Attempt

	n	% Success	OR	χ2 (d.f.)
Age at recruitment (years)				6.337(3)*
18–24	739	13.0	Ref
25–39	2566	13.2	0.79(0.61, 1.04)
40–54	4007	12.6	0.76(0.58, 0.99)*
55 and above	2628	13.8	0.86(0.67, 1.15)
Country				31.38 (3)**
Canada	2578	11.0	Ref
USA	2316	11.2	0.96(0.81, 1.18)
UK	2230	16.6	1.54(1.28, 1.84)**
Australia	2816	13.6	1.27(1.07, 1.51)*
Sex				3.39 (1)
Female	5778	12.5	Ref
Male	4162	13.9	1.13(0.99, 1.28)
Income Categories				16.88 (2)**
Low	3275	10.4	Ref
Moderate	3518	13.2	1.30(1.10, 1.53)*
High	3147	15.5	1.44(1.21, 1.72)**
Highest Level of Education				3.10 (2)
Low	4927	12.6	Ref
Moderate	3321	12.9	1.08(0.94, 1.25)
High	1692	15.1	1.16(0.98, 1.38)
Household Composition				3.14 (2)
Single Adult Smoker	2930	12.0	Ref
All Adult Smokers	2492	12.8	0.83(0.68, 1.02)
Mixed Adult Household	4518	14.0	0.88(0.73, 1.06)
Relationship Status				12.05 (1)**
Partnered	5187	14.8	Ref
Unpartnered	4753	11.2	0.75(0.64, 0.88)**
Model Two
Age at recruitment (years)				4.87 (3)
18–24			Ref
25–39			0.87(0.66, 1.13)
40–54			0.88(0.67, 1.14)
55 and above			1.05(0.77, 1.38)
Heaviness of Smoking Index				77.57 (6)**
0	993	20.0	Ref
1	1239	17.1	0.95(0.76, 1.18)
2	1928	14.0	0.71(0.57, 0.87)*
3	2906	11.5	0.55(0.45, 0.67)**
4	1778	10.6	0.51(0.41, 0.65)**
5	824	8.1	0.43(0.32, 0.58)**
6	272	10.0	0.46(0.29, 0.72)**
Model Three
Age at recruitment (years)				3.96(3)
18–24			Ref
25–39			0.87(0.67, 1.14)
40–54			0.88(0.67, 1.15)
55 and above			1.00(0.76, 1.32)
Heaviness of Smoking Index				81.13 (6)**
0			Ref
1			0.95(0.76, 1.19)
2			0.71(0.57, 0.87)*
3			0.54(0.44, 0.66)**
4			0.51(0.40, 0.64)**
5			0.42(0.31, 0.56)**
6			0.44(0.28, 0.69)**
Intention to Quit				7.15 (3)
In Next Month	1359	13.1	Ref
In Next 6 Months	3360	12.7	0.95(0.80, 1.13)
Beyond Next 6 Months	3406	12.9	1.04(0.87, 1.24)
Not Planning to Quit	1359	14.8	1.23(0.99, 1.52)

Note:

^*denotes p<.05

^**denotes p<.001