Key result
Confounding factors, such as confounding by indication, must be routinely measured and adjusted for in clinical studies to prevent biased estimates of treatment associations.
Design
Editorial
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Discusses the importance of considering confounding and bias when evaluating study results.
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Skelly et al. (2012) reported a review. Confounding factors, such as confounding by indication, must be routinely measured and adjusted for in clinical studies to prevent biased estimates of treatment associations.
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