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- Title
Estimating Population Treatment Effects From a Survey Subsample.
- Authors
Rudolph, Kara E.; Díaz, Iván; Rosenblum, Michael; Stuart, Elizabeth A.
- Abstract
We considered the problem of estimating an average treatment effect for a target population using a survey subsample. Our motivation was to generalize a treatment effect that was estimated in a subsample of the National Comorbidity Survey Replication Adolescent Supplement (2001–2004) to the population of US adolescents. To address this problem, we evaluated easy-to-implement methods that account for both nonrandom treatment assignment and a nonrandom 2-stage selection mechanism. We compared the performance of a Horvitz-Thompson estimator using inverse probability weighting and 2 doubly robust estimators in a variety of scenarios. We demonstrated that the 2 doubly robust estimators generally outperformed inverse probability weighting in terms of mean-squared error even under misspecification of one of the treatment, selection, or outcome models. Moreover, the doubly robust estimators are easy to implement and provide an attractive alternative to inverse probability weighting for applied epidemiologic researchers. We demonstrated how to apply these estimators to our motivating example.
- Subjects
UNITED States; PATIENT selection; STATISTICS methodology; DATA analysis; EPIDEMIOLOGY research methodology; COMPUTER simulation; CORTISONE; CASE studies; HEALTH outcome assessment; PROBABILITY theory; RESEARCH funding; STATISTICAL sampling; ADOLESCENT health; RESIDENTIAL patterns; SECONDARY analysis; TREATMENT effectiveness; RESEARCH bias; HUMAN research subjects; CROSS-sectional method
- Publication
American Journal of Epidemiology, 2014, Vol 180, Issue 7, p737
- ISSN
0002-9262
- Publication type
Article
- DOI
10.1093/aje/kwu197