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. Author manuscript; available in PMC: 2009 Aug 18.
Published in final edited form as: Nicotine Tob Res. 2008 Jan;10(1):27–33. doi: 10.1080/14622200701767852

Table 3.

Smoking cessation outcomes at 3 and 6 months by group.

3-Month follow-up
6-Month follow-up
Outcome X-Pack group (n=48) CTA group (n=35) p valuea X-Pack group (n=48) CTA group (n=35) p valuea
Quit rate (self-report of past-7-day smoking)b 31.3 20.0 25.0 14.3
Quit rate (cotinine verified)b 10.2d 5.7
Days since last cigarette (SD)c 13.7 (22.9) 4.5 (9.1) * 20.0 (47.6) 7.7 (23.1)
Consecutive days quit (SD)c 16.3 (17.7) 8.1 (10.0) * 34.0 (49.3) 13.4 (24.4) *
Change in number of cigarettes smoked/week from baseline (SD) −41.9 (45.0) −29.8 (35.8) −35.9(36.4) −23.0(28.2)
a

Note. Calculated with t tests and chi-square tests.

b

Missing assumed to still be smoking.

c

Missing assumed to have no days without cigarettes.

d

59.0% of self-reported quitters provided saliva samples for cotinine analysis.

*

p<.05;

**

p<.01;

***

p<.001.