Key result
Propensity score methods are increasingly used to evaluate treatment effectiveness without randomized trials, but users must be aware of their methodological strengths and limitations.
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Design
Review
Requires caution interpreting observational cardiovascular data; leaves open standardization of propensity score methods.
Propensity score based methods are used increasingly to evaluate the effectiveness of treatments when evidence from randomised trials is not available. However, users need to be aware of their strengths and limitations
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Freemantle et al. (2013) studied this question. Propensity score methods are increasingly used to evaluate treatment effectiveness without randomized trials, but users must be aware of their methodological strengths and limitations.
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