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. Author manuscript; available in PMC: 2012 Jun 1.

Published in final edited form as: Addict Behav. 2011 Jan 20;36(6):669–673. doi: 10.1016/j.addbeh.2011.01.009

Table 4.

Standardized regression coefficients predicting proportion days abstinent at follow-up from PFR-period client language.

		Proportion Days Abstinent
		4m	16m	34m	Overall

Variables
Baseline use		.28^**	.32^**	.03	.22^*
R²		.08^**	.10^**	.00	.05^*

Ability		.03	.18	−.13	.04
Commitment		−.04	−.03	−.10	−.11
Desire		.24^*	.23^*	.37^***	.28^**
Need		.01	−.25^*	−.01	−.17
Reason		.24^*	.27^**	.18	.34^**
R²		.22^**	.28^***	.16	.23^**
Δ R²		.14	.18^**	.16^*	.18^**

n = 61

^*

p<0.1,

^**

p<0.05,

^***

p<0.01.