Table 4.

Quality assessment of the included studies by Risk of Bias in Non-randomized Studies of Interventions for Non-randomized Studies

Study	Quality assessment by Risk of Bias in Non-randomized Studies of Interventions for Non-randomized Studies							Overall
	Bias due to confounding	Bias in selection of participants into the study	Bias in measurement of interventions	Bias due to departures from intended interventions	Bias due to missing data	Bias in measurement of outcomes	Bias in selection of the reported result
Fournier et al. [13] (2018)	Moderate	Low	Low	Low	Low	Low	Low	Moderate
Moscona et al. [14] (2018)	High	Low	Low	Low	Low	Low	Low	High
Di Gioia et al. [18] (2016)	Moderate	Low	Low	Low	Low	Low	Low	Moderate