. 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 2.

Inter-item correlations for the FTND-R and the FTND.

	1	2	3	4	5	6
FTND-R
1. Cigarettes per day	--
2. Smoke more first 2 hours of day	.26^**	--
3. Time to 1^st cigarette	.46^**	.40^**	--
4. Cigarette most hate to give up	.17^**	.24^**	.32^**	--
5. Difficult to refrain	.20^**	.14^**	.21^**	.07	--
6. Smoke when ill	.36^**	.27^**	.42^**	.15^**	.32^**	--
FTND
1. Cigarettes per day	--
2. Smoke more first 2 hours of day	.24^**	--
3. Time to 1^st cigarette	.46^**	.33^**	--
4. Cigarette most hate to give up	.17^**	.20^**	.32^**	--
5. Difficult to refrain	.21^**	.11^*	.17^**	.05	--
6. Smoke when ill	.26^**	.15^**	.34^**	.10	.20^**	--

Note. N = 341, FTND-R = Fagerström Test of Nicotine Dependence-Revised, FTND = Fagerström Test of Nicotine Dependence.

^**

p < .01

p < .05.