Confounding factors, such as confounding by indication, must be routinely measured and adjusted for in clinical studies to prevent biased estimates of treatment associations.
It is common to come across a study that reports that treatment A “provided significantly better pain relief” than treatment B.
Skelly et al. (Wed,) 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.