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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 2.

Proportion Days Abstinent.

Mean SD
Baseline 0.14 0.17
4 Months 0.60 0.34
16 Months 0.54 0.40
34 Months 0.58 0.42
Overall 0.54 0.33

n = 61