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Direct linkAlqaidoom, Zainab; Nguyen, Phi-Yen; Awadh, Maryam; Page, Matthew J. – Research Synthesis Methods, 2023
Systematic reviewers are advised to search trials registers to minimise risk of reporting biases. However, there has been little research on the impact of searching trials registers on the results of meta-analyses. We aimed to evaluate the impact of searching clinical trials registers for systematic reviews of pharmaceutical or non-pharmaceutical…
Descriptors: Experimental Groups, Medical Research, Drug Therapy, Pharmacology
Page, Matthew J.; Sterne, Jonathan A. C.; Higgins, Julian P. T.; Egger, Matthias – Research Synthesis Methods, 2021
A "P" value, or the magnitude or direction of results can influence decisions about whether, when, and how research findings are disseminated. Regardless of whether an entire study or a particular study result is unavailable because investigators considered the results to be unfavorable, bias in a meta-analysis may occur when available…
Descriptors: Publications, Bias, Medical Research, Meta Analysis
