Retrieval barriers in individual participant data reviews with network meta-analysis

Conclusions We found no clear evidence of retrieval bias (where IPD availability was linked to trial findings) in either IPD-NMA, but because retrieval bias could impact NMA findings, subsequent decision-making and guideline development, this should be considered when assessing risk of bias in IPD syntheses.
Source: Evidence-Based Medicine - Category: Internal Medicine Authors: Tags: Original research Source Type: research