. Author manuscript; available in PMC: 2014 Nov 24.

Published in final edited form as: Addict Behav. 2012 Oct 29;38(3):1757–1763. doi: 10.1016/j.addbeh.2012.10.013

Table 1.

Descriptive statistics of sample characteristics

	M	SD
Number of years smoking	17.46	12.68
Cigarettes per day	17.26	9.92
Quit attempts	3.36	2.48
FTND-R	5.80	3.06
FTND	5.09	2.32
FTQ	6.07	1.73

Note. N = 343, FTND-R = Fagerström Test of Nicotine Dependence-Revised, FTND = Fagerström Test of Nicotine Dependence, FTQ = Fagerström Tolerance Questionnaire.