• Highlight body of literature 

• Investigate conflicting results
• Confirm current practice/address any variation
• Produce statements to guide decision making

• Characterize the research on a topic
• Identify research gaps 
• Serve as precursor to systematic review

• Not necessarily explicit

• Explicit and clear
• Articulated as a question statement with precise concepts

• Explicit and clear
• Articulated as a question statement with broad concepts

• Not applicable

• Transparent
• Reproducible
• ex:Cochrane, JBI

• Transparent
  Reproducible
• ex. Cochrane, JBI, Campbell Collaboration

• Not required

• Required prior to conduct of the review
• Registration/Publication recommended

• Required prior to conduct of the review
• Registration/Publication recommended

• Selective

• Exhaustive

• Comprehensive

• N/A

• Necessary

• Possible but not mandatory

• None

• PRISMA

• PRISMA-ScR

Systematic Review of the Effectiveness of Machine Learning Algorithms for Classifying Pain Intensity, Phenotype or Treatment Outcomes Using Electroencephalogram 

Using Artificial Intelligence to Improve Pain Assessment and Pain Management: A Scoping Review