TABLE 2.

Assessment of Risk of Bias for Non-RCTs^a

Non-RCTs	Bias Due to Confounding	Bias in Selection of Participants	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	Overall Bias
Guney13 (2016)	Low	Low	Low	Low	Low	Moderate	Moderate	Moderate
Mancò27 (2016)	Low	Moderate	Low	Low	Low	Moderate	Low	Moderate
Papalia39 (2016)	Low	Moderate	Moderate	Low	Low	Moderate	Serious	Serious

^aRCT, randomized controlled trial.