Table A:

Predictors of Quit Success (One-Month Criteria) Among All Participants

	n	% Success	OR	χ2 (d.f.)
Age at recruitment (years)				52.40 (3)**
18–24	2023	11.9	Ref
25–39	8186	10.4	0.77(0.64, 0.92)*
40–54	13401	8.1	0.58(0.48, 0.69)**
55 and above	8360	9.3	0.72(0.60, 0.87)**
Country				29.71 (3)**
Canada	7989	8.6	Ref
USA	7102	8.1	0.96(0.85, 1.10)
UK	8134	9.9	1.28(1.14, 1.44)**
Australia	8745	10.1	1.23(1.09, 1.38)*
Sex				0.051 (1)
Female	17901	9.0	Ref
Male	14069	9.5	1.01(0.93, 1.10)
Income Categories				23.05 (2)**
Low	10202	7.8	Ref
Moderate	11567	9.1	1.22(1.09, 1.36)**
High	10201	10.9	1.35(1.20, 1.52)**
Highest Level of Education				13.71 (2)*
Low	10202	8.5	Ref
Moderate	11567	9.5	1.12(1.02, 1.24)
High	5431	11.3	1.25(1.10, 1.41)**
Household Composition				7.41 (2)
Single Adult Smoker	9076	8.5	Ref
All Adult Smokers	7876	8.7	0.83(0.72, 0.96)
Mixed Adult Household	15018	10.0	0.93(0.82, 1.06)
Relationship Status				14.88 (1)**
Partnered	17046	9.9	Ref
Unpartnered	14924	8.3	0.81(0.73, 0.90)**
Model Two
Age at recruitment (years)				27.21 (3)**
18–24			Ref
25–39			0.85(0.71, 1.02)
40–54			0.70(0.58, 0.84)**
55 and above			0.87(0.72, 1.04)
Heaviness of Smoking Index				245.07 (6)**
0	3855	17.4	Ref
1	3436	12.9	0.93(0.80, 1.089)
2	5776	10.1	0.69(0.60, 0.80)**
3	9362	7.3	0.50(0.43, 0.57)**
4	5763	6.1	0.42(0.36, 0.50)**
5	2745	5.4	0.39(0.32, 0.48)**
6	1033	4.6	0.3(0.22, 0.42)**
Model Three
Age at recruitment (years)				28.38 (3)**
18–24			Ref
25–39			0.85(0.71, 1.02)
40–54			0.75(0.62, 0.89)*
55 and above			0.98(0.81, 1.18)
Heaviness of Smoking Index				187.77 (6)**
0			Ref
1			0.92(0.78, 1.07)
2			0.70(0.60, 0.81)**
3			0.53(0.46, 0.61)**
4			0.46(0.39, 0.54)**
5			0.44(0.36, 0.54)**
6			0.36(0.26, 0.49)**
Intention to Quit				347.30 (3)**
In Next Month	3282	16.6	Ref
In Next 6 Months	7421	13.1	0.77(0.68, 0.87)**
Beyond Next 6 Months	11917	8.0	0.47(0.42, 0.54)**
Not Planning to Quit	9350	5.3	0.31(0.26, 0.35)**

Note:

^*denotes p<.05

^**denotes p<.001