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Table 4 AMSTAR 2 critical appraisal tool ratings for critical domains and overall confidence for risk of bias in included systematic review studies

From: The effectiveness of different patient referral systems to shorten waiting times for elective surgeries: systematic review

Citation Protocol registered Adequacy of the literature search Justification for excluding individual studies Risk of bias from individual studies Appropriateness of meta-analytical methods Consideration of risk of bias when interpreting the results Assessment of presence and likely impact of publication bias Rating overall confidence
Bachlete et al. [44] Partial Yes Partial Yes Yes Partial Yes NA Yes NA Moderate
Ballini et al., [46] Yes Yes Yes Yes NA Yes NA High
Damani et al., [45] Partial Yes Yes Yes Yes NA Yes NA Moderate