Table 5.

Results of Logistic Generalized Estimating Equations Analyses of Change in Risk Perceptions as Predictors of Any Quit Attempt (n = 267) and Abstinence (n = 243).

Variable	Any Quit Attempt			Abstinence
	OR	95% CI	p	OR	95% CI	p
Intercept	0.36	[0.17,0.74]	.006	1.35	[0.63,2.85]	.434
Smoking Group (vs. Fruits & Vegetables)	0.72	[0.42,1.23]	.231	0.74	[0.45,1.23]	.252
Male (vs. being Female)	1.34	[0.79,2.26]	.273	0.83	[0.52,1.32]	.447
Age (vs. 18)
22	1.27	[0.20,7.99]	.798	3.07	[1.07,8.80]	.036
21	0.70	[0.30,1.61]	.408	1.95	[0.90,4.22]	.090
20	0.81	[0.39,1.67]	.580	1.69	[0.85,3.36]	.135
19	0.88	[0.44,1.76]	.721	1.97	[0.99,3.95]	.053
Time - Follow-up (vs. End of Treatment)	1.64	[1.38,1.94]	.000	0.58	[0.39,0.85]	.006
Level of Smoking	1.06	[1.03,1.09]	.000	0.88	[0.84,0.91]	.000
Perceived Vulnerability	1.03	[0.84,1.28]	.720	1.41	[1.15,1.72]	.001
Precaution Effectiveness	1.00	[0.89,1.12]	.932	0.96	[0.87,1.06]	.458
Optimism Bias	1.06	[0.88,1.27]	.510	1.03	[0.86,1.23]	.712

Note. Level of smoking (days smoked per month); For the Quit Attempt set of analyses the Corrected Quasi likelihood under Independence model Criterion (QIC) for model 1, model 2, and model 3 were 1042.7, 689.5, and 694.9, respectively. For the Abstinence set of analyses the QICs for model 1, model 2, and model 3 were 702.5, 532.1, and 535.1, respectively.