Table 4.

Results of CO concentration from expired air, number of cigarettes smoked per day, and Fagerström’s test score in pre-test, post-test, and at follow-up

		MI Mean ± SD	p	MI-NRT Mean ± SD	p	Control Mean ± SD	p
Mean CO-oximetry	Pre-test and Post test	7.80 ± 4.34	0.001	10.87 ± 4.53	0.001	0.36 ± 2.36	0.19
	Pre-test and Follow-up	7.81 ± 4.80	0.001	11.24 ± 3.82	0.001	0.37 ± 1.74	0.07
	Post-Test and Follow-up	0.01 ± 2.95	0.96	0.37 ± 2.24	0.16	0.01 ± 2.29	0.95
cigarettes smoked per day (number)	Pre-test and Post-test	9.38 ± 8.34	0.001	9.81 ± 5.36	0.001	0.40 ± 4.49	0.44
	Pre-test and Follow-up	5.90 ± 9.57	0.001	10.15 ± 3.27	0.001	0.09 ± 3.33	0.80
	Post-Test and Follow-up	3.47 ± 3.29	0.413	0.33 ± 5.68	0.618	−0.31 ± 4.07	0.52
Fagerström’s test score	Pre-test and Post-test	2.88 ± 2.47	0.001	6.50 ± 2.41	0.001	0.21 ± 2.09	0.39
	Pre-test and Follow-up	3.62 ± 2.97	0.001	7.81 ± 2.60	0.001	−0.70 ± 1.61	0.43
	Post-Test and Follow-up	0.73 ± 1.51	0.113	1.31 ± 1.27	0.068	−0.91 ± 2.51	0.25