====== Research synthesis ====== Efficient research synthesis requires 3 things: [[matched variables]], reported in the same manner, and easily identifiable studies. [[Systematic review]]s indicated that [[clinical trial]]s do not use the same [[outcome measure]]s or reporting style. While some discrepancies can be overcome by acquiring the original data, this is time-consuming, rarely straightforward, and often not possible. Moreover, the interpretation of any pooled outcomes must also consider the comparability of the studied population and the trial methodology.