Table 3.

Multivariable Model for Long-Term Smoking Cessation Outcome^*

Independent Variable	Continuous Smoker v Continuous Smoke Free		Relapsed at Follow-Up vContinuous Smoke Free		Quit at Follow-Up v Continuous Smoke Free		Overall P for Significance
	OR	95% CI	OR	95% CI	OR	95% CI
Intervention condition
Self-help	1.79	0.77 to 4.16	0.54	0.15 to 2.00	2.05	0.81 to 5.25	.0842
Peer counseling	1.0		1.0		1.0
Sex
Female	0.81	0.32 to 2.05	0.28	0.08 to 1.02	0.38	0.14 to 1.06	.0420
Male	1.0		1.0		1.0
Education, at follow-up							.0009
< HS	3.72	0.98 to 14.06	0.86	0.15 to 5.12	0.55	0.12 to 2.49
Post HS	2.45	0.84 to 7.14	0.29	0.06 to 1.31	0.90	0.29 to 2.84
College	1.0
Used nicotine replacement therapy
No	3.68	1.26 to 10.75	0.94	0.23 to 3.88	1.07	0.34 to 3.39	.0049
Yes	1.0		1.0		1.0
Situational self-efficacy, 1 unit increment from mean of 8.59*	0.90	0.76 to 1.08	0.82	0.64 to 1.04	0.79	0.66 to 0.96	.0574
No. of cigarettes/day, 1 cigarette increment from mean of 14.4*	1.05	0.98 to 1.12	0.96	0.88 to 1.06	1.01	0.94 to 1.08	.0361
Stage of change at baseline
Precontemplation	0.59	0.15 to 2.30	0.13	0.02 to 1.11	0.23	0.05 to 1.10	.0478
Early contemplation	1.57	0.45 to 5.45	0.21	0.03 to 1.45	0.64	0.16 to 2.54
Contemplation	3.10	0.71 to 13.61	0.63	0.09 to 4.61	1.24	0.24 to 6.31
Preparation	1.0
Household income†							.9327
Age at first smoking†							.7840
Confident can quit smoking in 1 month†							.4984
Age†							.6132
Nicotine dependence†							.9652
Race/ethnicity†							.9720
Marital status, at follow-up†							.1436
Cancer type†							.5948
Cancer at follow-up†							.7933
Length of time from baseline to long-term follow-up†							.2280

Abbreviations: OR, odds ratio; HS, high school.

^*Excluded short-term self-efficacy due to colinearity with situational self-efficacy.

^†These variables are nonsignificant in the model-only presenting P.