Table 7.

Risk of bias assessment.

References	Sequence generation	Allocation concealment	Participant/ personnel	Outcome assessment blinding	Incomplete outcome data	Selective reporting	Other potential sources of bias
Axelrod et al. (63)
Batatinha et al. (65)
Burton et al. (66)
Carbuhn et al. (67)
Coman et al. (92)
Damen et al. (55)
Finegold et al. (56)
François et al. (57)
Gill et al. (68)
Gleeson et al. (70)
Haywood et al. (72)
Huang et al. (74)
Hoffman et al. (73)
Kekkonen et al. (99)
Kleessen et al. (59)
Klein et al. (75)
Lamprecht et al. (76)
Lee et al. (77)
Lin et al. (78)
Pugh et al. (79)
Pugh et al. (100)
Quero et al. (93)
Reimer et al. (60)
Roberts et al. (94)
Russo et al. (61)
Russo et al. (45)
Russo et al. (62)
Sánchez Macarro et al. (80)
Schreiber et al. (82)
Shing et al. (102)
Smarkusz-Zarzecka et al. (83)
Son et al. (84)
Strasser et al. (85)
Tavares-Silva et al. (87)
Townsend et al. (88)
Vaisberg et al. (89)
Valle et al. (96)
West et al. (90)
West et al. (98)

Low risk of bias, High risk of bias, Unclear risk of bias.