Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	The investigators mentioned randomization but did not report on the random sequence generation
Allocation concealment (selection bias)	Unclear risk	No reporting was made on allocation concealment
Blinding of participants and personnel (performance bias)	High risk	Blinding of participants and personnel was not possible due to the nature of the intervention and study design
Blinding of outcome assessment (detection bias)	Unclear risk	No reporting was made on blinding of outcome assessors
Incomplete outcome data (attrition bias)	Low risk	Seven participants were lost to follow‐up, with two of these participants dying during the course of the project and three being incarcerated
		Reason for dropping out were not related to the nature of the outcome
Selective reporting (reporting bias)	Low risk	No evidence of selective outcome reporting
Other bias	Low risk	No evidence of other concerns for bias