The effect of journal impact factor reporting conflicts and reporting funding sources on standardized effect sizes in back pain trials: a systematic review and meta-regression

摘要

BackgroundLow back pain is a common and costly health complaint for which there are several moderately effective treatments. In some fields there is evidence that funder and financial conflicts are associated with trial outcomes. It is not clear whether effect sizes in back pain trials relate to journal impact factor, reporting conflicts of interest, or reporting funding.