Methods	Design: Randomized control trial
	Setting: New York, United States
	Follow up: 24 months
	Recruitment: Participants were referred by hospitals, drop‐in centres, outreach teams, direct outreach by project staff, self‐referrals, and other agencies
	Randomization: Participants were randomized but the procedures were not mentioned in the paper
	Allocation: Allocation procedures were not mentioned
	Blinding: Interviewers were blind to participants' assignment for baseline interviews but not for follow‐up interviews
	Timing of outcome assessment: Every 6 months for up to 24 months
	Outcome assessor: Interviewers trained to engage individuals who are homeless and mentally ill
Participants	Population: Homeless individuals with dual diagnoses
	Sample size: Total n = 225, Intervention n = 99, TAU n = 126
Interventions	Intervention:
	Pathways to housing; immediate provision of an apartment of the participant's own without any prerequisites for psychiatric treatment or sobriety; participants were also offered treatment, support, and other services by the programme's assertive community treatment team with two modifications (a nurse practitioner and housing specialist).
	Comparator:
	Usual care: Continuum of Care supportive housing programs subscribe to the abstinence‐sobriety model based on the belief that without strict adherence to treatment and sobriety, housing stability is not possible.
Outcomes	Housing stability, mental health, quality of life, substance use, hospital admission
Notes