Table 1.

Overview of data extraction fields for the review

Section	Data to be collected
Bibliometrics	Corresponding or last author (first and last name) and contact information (email address). We will first verify whether the corresponding author has academic faculty status, and if not, we will contact the last author Country of author Publication year Study design name in title (verbatim quotation/descriptor) Type of article (protocol or final publication, and letter/brief report or full publication) Journal
Methods	Study design name in methods section (verbatim quotation/descriptor) Objectives (verbatim quotation) Outcomes (verbatim quotation) Search strategy reported (yes/no) Search time limits and justifications (yes/no and verbatim quotation) Databases searched Included research report types (eg, randomised trials, systematic reviews, cohort studies) Sampling method (where applicable) Analysis type (eg, correlation, descriptive, regression, time-series) Reporting guidance used and justification (yes/no, name and verbatim quotation) Prospective registration and existence of a published protocol (yes/no, where applicable)
Results	Presence of flow diagrams (yes/no) Total records screened and included Type of final synthesis performed (qualitative, quantitative, both)
Discussion	Intended use of findings (verbatim quotation) Limitations (verbatim quotation)
Other	Conflicts of interest (yes/no) Funding type (eg, industry, institutional, non-profit) Provide access to data (yes/no)