Trial reportBMJ open2025
Testing the theory of change for Housing First: a secondary qualitative analysis of gender differences in the experiences of men and women in the AH/CS trial.
Trial report in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
8 authors.
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Abstract
objectivesHousing First (HF) is an evidence-based approach to ending homelessness, particularly for individuals with mental illness. Yet, limited research explores which aspects of HF programmes facilitate change over time, within the context of a programme theory of change (ToC). A particular research gap includes how mechanisms of change within HF programmes differ between men and women. This study examines gender-specific pathways of change in the HF model based on secondary qualitative data from Toronto's original At Home/Chez Soi (AH/CS) trial, focusing on outcomes of housing stability, socio-economic status, health and overall well-being.
designThis was a secondary qualitative analysis of the AH/CS trial data. This analysis was guided using a gender-sensitive ToC framework. SETTINGS: This multisector study was conducted in a large Canadian urban centre in Toronto, Canada.
participantsA total of 32 participants (23 men and nine women) who identified themselves as male or female, 18 months after their enrolment in the treatment arm of the Toronto site of the AH/CS randomised controlled trial. DATA COLLECTION AND ANALYSIS: Semistructured interviews were conducted as part of the trial's qualitative study. Thematic analysis was guided by the ToC framework and conducted using NVivo software. We assessed differences between men and women across the following outcome domains: housing stability, financial status, physical and mental health, substance use recovery and inpatient care.
resultsThe findings largely confirmed the ToC with participants, particularly women, experiencing greater improvements across all mechanisms of change, especially in housing stability, financial status and health outcomes. Men faced ongoing challenges, including difficulty maintaining stable income, limited engagement with education/training and continued struggles with mental health and substance use. Despite these improvements, both men and women participants reported ongoing challenges in achieving consistent income and accessing education or training opportunities.
conclusionsThis study provides insight into how mechanisms of change within HF programmes differ between men and women. It underscores the need for ongoing programme adaptation and gender-responsive evaluation to meet the diverse needs of individuals, particularly those with mental health illness and histories of chronic homelessness.
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