Table 5.

Quality assessment

No.	Author(s), publication year	Risk of bias arising from the randomization process	Risk of bias due to deviations from the intended interventions (effect of assignment to intervention)	Risk of bias due to missing outcomes data	Risk of bias in measurement of the outcome	Risk of bias in selection of the reported result	Overall risk of bias
3	Brewer et al., 2016	Low	Low	Low	Low	Low	Low
4	Brewer et al., 2019	Low	Low	Low	Low	Low	Low
8	Fathelrahman et al., 2010	Low	Some concerns	Low	Low	Low	Some concerns
10	Glock & Kneer, 2009	Low	Low	Low	Low	Low	Low
15	Hall et al., 2018	Low	Low	Low	Low	Low	Low
23	McQueen et al., 2015	High	Low	Low	Low	Low	High
28	Parada et al., 2017	Low	Low	Some concerns	Low	Low	Some concerns
30	Popova & Ling, 2014	Low	Low	Low	Low	Low	Low
31	Schneider et al., 2012	Low	Low	Low	Low	Low	Low

RoB2