Table 3.

Changes in Number of Smoking Friends Between Wave 1 and Wave 2, and Intentions to Quit Smoking at Wave 2, Attempts to Quit Smoking at Wave 2, and Successful Quit Attempts^a

Smoking Cessation Outcome	Intentions to Quit at Wave 2 (N=5,739)				Attempts to Quit at Wave 2 (N=6,321)				Successful Quit Attempts at Wave (N=2,308)
Variable	n and (%) Intend to Quit	ORb	95%CIc	p	n and (%) Attempted to Quit	ORb	95%CIc	p	n and (%) Successful Quit Attempt	ORb	95%CIc	p
Change in number of smoking friends between Wave 1 and Wave 2
No change	2290(30.2)	1.00	1.00	refd	2501(34.5)	1.00	1.00	refd	860(17.1)	1.00	1.00	refd
Loss	1761(32.6)	1.18	0.98,1.41	0.08	2004(42.1)	1.50	1.27,1.76	<0.0001	632(21.9)	1.62	1.20,2.19	<.01
Gain	1688(28.97)	0.82	0.68,0.99	0.04	1816(34.6)	0.97	0.82,1.15	0.76	816(15.5)	0.73	0.52,1.04	0.08

^aadjusting for demographics, smoking cessation predictor variables, and number of smoking friends at Wave 1

^bOR=odds ratio,

^c95% confidence interval

^dref=reference group