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. 2021 May 6;21(4):1–232.

Table A1:

Risk of Biasa Among Systematic Reviews (ROBIS Tool)

Author, Year Phase 2 Phase 3
Study Eligibility Criteria Identification and Selection of Studies Data Collection and Study Appraisal Synthesis and Findings Risk of Bias in Review
Lepping et al, 201442 Low High High High High
Leggett et al, 201540 Low Low Low Low Low
Zhang et al, 201543 Low Low Low Low Low
Health Quality Ontario, 201618 Low Low Low Low Low
Nordenskjold et al, 201644 Low Low Unclear Low Low
Berlim et al, 201745 Low Low High Low Low
Brunoni et al, 201746 High Low Low High High
University of Calgary, 201734 Low Low Low Low Low
Mutz et al, 201835 Low High Low Low Low
Sehatzadeh et al, 201941 Low Low Low Low Low

Abbreviation: ROBIS, Risk of Bias in Systematic Reviews.

a

Possible risk of bias levels: low, high, unclear.