No consistent evidence of data availability bias existed in recent individual participant data meta-analyses: A meta-epidemiological study

To assess trial-level factors associated with the contribution of individual participant data (IPD) to IPD meta-analyses, and to quantify the data availability bias, namely the difference between the effect estimates of trials contributing IPD and those not contributing IPD in the same systematic reviews (SRs).

Source: Journal of Clinical Epidemiology - October 21, 2019 Category: Epidemiology Authors: Yasushi Tsujimoto, Tomoko Fujii, Akira Onishi, Kenji Omae, Yan Luo, Hissei Imai, Sei Takahashi, Takahiro Itaya, Claire Pinson, Sarah J. Nevitt, Toshi A. Furukawa Tags: Original Article Source Type: research