Library of risk of bias tools

Cho Tool

Study design(s) targeted by the tool Randomized controlled trials (RCT)randomized-controlled-trial-rct Observational studies (mixed designs)observational-studies
Additional details on designs Drug studies
Tool area Health
Link to the tool Cho Tool

Details

Website
Primary publication Cho MK, Bero LA. Instruments for Assessing the Quality of Drug Studies Published in the Medical Literature. JAMA 1994;272(2)
DOI 10.1001/jama.1994.03520020027007
Guidance document
Training

None known – please contact us if you are aware of any evaluations that should be listed here.

Language English
Translations

None known – please contact us if you are aware of any evaluations that should be listed here.

Record last updated 24/05/2024

Related tools and Publications

Previous versions

None

Updated versions

None

Related tools

None

Evaluations

None known – please contact us if you are aware of any evaluations that should be listed here.

Other publications

None known – please contact us if you are aware of any evaluations that should be listed here.

Key Criteria

Focuses on risk of bias, or makes a distinction between items that assess risk of bias and other aspects of study quality No
Offers a method to reach either a domain specific or overall assessment of risk of bias Yes
Tool development involving a range of stakeholders from different disciplines (e.g. methodologists, statisticians, clinicians) Yes
Avoids recommending use of summary numerical quality scores No