Table 2.

Quit Attempts and Abstinence

	No. (%) of Participants
	Snus (n=626)	Control (n=610)	Relative Risk (95% CI)	Risk Difference (95% CI)	p-value
Any Quit Attempt, ever within study	161 (25.7)	188 (30.8)	0.83 (0.70 – 1.00)	.05 (0.0008 – 0.10)	.05
Any 24-hr Quit Attempt, ever within study	124 (19.8)	156 (25.6)	0.77 (0.63 – 0.95)	.06 (0.01 – 0.10)	.02
Floating Abstinencea	93 (14.9)	99 (16.2)	0.92 (0.71 – 1.19)	.01 (−0.03 – 0.05)	.5
Week 32 PPAb	39 (6.2)	34 (5.6)	1.12 (0.72 – 1.75)	.006 (−0.02 – 0.03	.6
Week 58 PPAb	32 (5.1)	34 (5.6)	0.92 (0.27 – 1.47)	.005 (−0.02 – 0.03)	.7

Notes:

^aFloating Abstinence: Any 7-day period of non-smoking, ever within study

^bPPA: Point prevalence