Table 3.

Multinomial logistic regression results predicting log-in trajectory cluster membership from baseline characteristics^a.

Arm, cluster, and characteristic			Odds ratio	95% CI
WebQuit
	5-week users
		Smoking >10 years	1.27	0.93-1.75
		Not anxiousb	1.25	0.96-1.64
	52-week users
		Smoking >10 years	1.90	1.14-3.14
		Not anxious	1.56	1.06-2.33
Smokefree
	4-week users
		Less than half a pack	1.16	0.85-1.61
		Unemployed	1.33	1.03-1.72
		No posttraumatic stress disorderc	1.43	1.11-1.85
	5-week users
		Less than half a pack	1.72	1.23-2.44
		Unemployed	1.79	1.33-2.38
		No posttraumatic stress disorder	1.16	0.88-1.56

^aReference group: 1-week users. Only significant predictors have been included in this table for ease of reading.

^bRefers to screening negative for generalized anxiety disorder.

^cRefers to screening negative for posttraumatic stress disorder.