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. Author manuscript; available in PMC: 2016 Mar 21.

Published in final edited form as: Nicotine Tob Res. 2008 May;10(5):934–942. doi: 10.1080/14622200802133681

Table 1.

Relating cigarette use to nicotine dependence in daily smokers.

		Cigarettes per day			Years smoking			Composite measure

Scale	B	Adjusted r²	p value	B	Adjusted r²	p value	B	Adjusted r²	p value
NDSS-Total	0.03	.03	<.0001	0.03	.04	<.0001	0.28	.06	<.0001
Drive	0.01	.00	.306	0.03	.02	<.005	0.17	.01	<.01
Priority	0.04	.04	<.0001	0.02	.01	<.05	0.29	.05	<.0001
Tolerance	0.02	.01	<.05	−0.01	.00	.103	0.01	.00	.903
Stereotypy	0.01	.00	.233	0.02	.01	<.05	0.16	.01	<.05
Continuity	0.02	.00	.068	0.02	.01	.054	0.19	.02	<.005