Table 2.

Risk of bias assessment of the randomized controlled trial

Study	Adequate sequence generation	Concealment of allocation	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other bias
Sankaranarayanan et al. [20]	Unclear: Does not specify	High risk: Probably not done	Low risk: Not possible; unlikely to influence results	Low risk: Probably done	Low risk: Analysis by intention to screen	Low risk: All outcomes of interest reported	Low risk: No other sources of bias observed

Risk of bias was assessed using the Cochrane Risk of Bias Tool [40].