Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	High risk	Participants could not be randomly assigned to housing types
Allocation concealment (selection bias)	High risk	Participants could not be randomized hence allocation concealment was not available.
Blinding of participants and personnel (performance bias)	High risk	Blinding of participants and personnel was not possible due to study design and the nature of the intervention.
Blinding of outcome assessment (detection bias)	Unclear risk	No description of blinding of outcome assessment.
Incomplete outcome data (attrition bias)	High risk	Eight participants in supported housing and ten in community residences completed only a baseline interview and were dropped from the study. The 18 persons were not statistically significant from the remaining group on any baseline characteristics. Overall, 80 percent of persons were available for the 12 months interview.
Selective reporting (reporting bias)	Low risk	No evidence of selective reporting were detected.
Other bias	Low risk	No other potential biases were detected.