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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: J Consult Clin Psychol. 2016 Apr 21;84(7):633–644. doi: 10.1037/ccp0000099

Table 3.

Abstinence rates by community use level and pairwise ATEs and ATTs before and after propensity score weighting.

None
Passive
Both
Difference*
Rate (95% CI) Rate (95% CI) Rate (95% CI) ΔRate (95% CI) p-value





Unweighted Analyses .124 (.070, .178) .244 (.151, .337) .355 (.283, .426)
 Passive vs. None -- -- -- .120 (.012, .227) .028
 Both vs. None -- -- -- .231 (.141, .320) <.001
 Both vs. Passive -- -- -- .111 (-.007, .228) .064





ATE Weighted Analyses .122 (.067, .177) .252 (.151, .352) .355 (.281, .429)
 Passive vs. None -- -- -- .130 (.015, .244) .026
 Both vs. None -- -- -- .233 (.141, .325) <.001
 Both vs. Passive -- -- -- .103 (-.022, .228) .105





ATT weighted to match "None" .124 (.070, .178) .279 (.159, .399) .350 (.266, .433)
 Passive vs. None -- -- -- .155 (.023, .287) .021
 Both vs. None -- -- -- .226 (.126, .325) <.001





ATT weighted to match "Passive" .121 (.058, .184) .244 (.151, .337) .327 (.231, .423)
 None vs. Passive -- -- -- −.123 (−.235, −.010) .032
 Both vs. Passive -- -- -- .083 (.050, .217) .221





ATT weighted to match "Both" .143 (.064, .223) .230 (.125, .335) .355 (.283, .426)
 None vs. Both -- -- -- −.211 (−.318, −.105) <.001
 Passive vs. Both -- -- -- −.124 (−.252, .003) .055





*

Differences are calculated as 1st group – 2nd group, where pairs are expressed as "1st group vs. 2nd group".

Notes: ATE weighted estimates represent estimated abstinence rates if the whole population received the corresponding treatments. ATT weighted estimates represent estimated abstinence rates if the matched population received corresponding treatments.