Table 4.

GRADE evidence profile for community-level domains

Domain	Number of studies	Risk of bias	Inconsistency	Effect size	Quality	Comments
Peer support	5	No serious risk	No serious inconsistency	Small-Medium	Low
Community cohesion (negative)	4	No serious risk	Serious inconsistency	Negligible-Large	Very low	Rated down due to inconsistent findings Studies from US (mainland) and Canada only
Discrimination	8	No serious risk	No serious inconsistency	Small-Medium	Moderate	Rated up due control of confounding variables
Bullying	4	No serious risk	No serious inconsistency	Small-Large	Low	Studies from US (mainland) and Canada only

GRADE Grades of Recommendation, Assessment, Development, and Evaluation