In this cross-sectional analysis of veterans who received VHA care during Fiscal Year 2012 (N = 5,450,078), we compared the prevalence of OUD and other sociodemographic, and clinical factors among homeless and non-homeless veterans. We estimated the odds ratio for homelessness associated with OUD alone, and after adjusting for other factors through multivariate logistic regression.
Homeless veterans had substantially higher prevalence of OUD than other VHA patients (7.7 % Vs 0.6 %) and OUD was associated with 13 times higher unadjusted odds of homelessness (Odds Ratio [OR] 13.36, 95 % CI 13.09-13.62), which decreased with adjustment for sociodemographic factors (black race, mean income and age), other SUD, medical, and psychiatric diagnoses (final OR 1.57, 95 % CI 1.53-1.61). Other SUDs (alcohol, cannabis, cocaine, and hallucinogens) showed similar or slightly higher odds of homelessness as OUD in the final model.
OUD was strongly associated with homelessness among US veterans although this association was largely but not entirely attenuated by shared sociodemographic and co-morbid risk factors including several other SUDs. Treatment of homeless veterans with OUD should address socio-economic vulnerabilities and other co-morbidities in addition to treatments for OUD.
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