Table 1 Proposed data extraction form

Article ID:

Article title:

Publication year:

Journal name:

First author’s name

PBRN’s name

Country/region

PBRNs’ country or region (e.g., USA, UK, Canada, multinational)

Type of first authors’ affiliation

Select from the following categories:

(1) Department of family medicine/general practice/primary care/community health; (2) Other departments in the university; (3) Academies; (4) Hospitals, clinics, or local health networks; (5) PBRNs; (6) Research institutes; (7) Companies; (8) Government branch; (9) Foundation; (10) Others

Research category:

Select from the following categories:

(1) Basic research; (2) Clinical research; (3) Health services research; (4) Health systems research; (5) Educational research; (6) Other types

Research method:

Select from the following categories:

(1) Cross-sectional study; (2) Prospective longitudinal study; (3) Retrospective longitudinal study; (4) Interventional study (excluding randomized controlled trials); (5) Randomized controlled trial; (6) Qualitative study; (7) Mixed methods research; (8) Other methods (e.g., questionnaire development study, implementation science, quality improvement study)