How well can we assess the validity of non-randomised studies of medications? A systematic review of assessment tools
Objective To determine whether assessment tools for non-randomised studies (NRS) address critical elements that influence the validity of NRS findings for comparative safety and effectiveness of medications.Design Systematic review and Delphi survey.Data sources We searched PubMed, Embase, Google, b...
Main Authors: | , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMJ Publishing Group
2021-03-01
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Series: | BMJ Open |
Online Access: | https://bmjopen.bmj.com/content/11/3/e043961.full |