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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Drug Alcohol Depend. 2009 Aug 20;106(1):48. doi: 10.1016/j.drugalcdep.2009.07.004

Table 2.

Results of hierarchical regression analyses predicting intention to quit smoking among teens in substance abuse treatment (N=178).

Variable B SE B B pr t
Intention to quit smoking
Step 1
     Nicotine Dependence −.56 .12 −.33 −.33 −4.55**
Step 2
     Nicotine Dependence −.38 .13 −.22 −.21 −3.00**
     Smoking self-efficacy .26 .07 .27 .25 3.70**
     Intention to quit drinking .01 .07 .01 .01 0.18
     Intention to quit using drugs .15 .07 .16 .14 2.04*

Note. Model R2=.11 for Step 1 (p<.01); ΔR2=.09 for Step 2 (p<.01).

*

p<.05

**

p<.01