Using propensity scores to adjust for selection bias when assessing the effectiveness of Alcoholics Anonymous in observational studies.
Using propensity scores to adjust for selection bias when assessing the effectiveness of Alcoholics Anonymous in observational studies.
Y. Ye,L. Kaskutas
2009 · DOI: 10.1016/j.drugalcdep.2009.03.018
Drug and Alcohol Dependence · 100 Citations
TLDR
The results confirm the robustness of AA effectiveness overall, but the effect modification by propensity scores in both PS stratification and PS matching approaches seems to suggest that AA may be most helpful, or matter more, for those with a lower propensity to attend AA.