Mental Disorders among the Homeless in Western Countries
Author Information
Author(s): Seena Fazel, Vivek Khosla, Helen Doll, John Geddes
Primary Institution: Department of Psychiatry, University of Oxford
Hypothesis
What is the prevalence of major mental disorders among homeless individuals in Western countries?
Conclusion
Homeless people in Western countries are significantly more likely to suffer from alcohol and drug dependence, as well as other mental disorders, compared to the general population.
Supporting Evidence
- Alcohol dependence prevalence ranged from 8.1% to 58.5%.
- Drug dependence prevalence ranged from 4.5% to 54.2%.
- Psychotic illness prevalence ranged from 2.8% to 42.3%.
- Major depression prevalence estimates ranged from 0.0% to 40.9%.
- Substantial heterogeneity was observed in prevalence estimates across studies.
Takeaway
Many homeless people have serious mental health problems, especially with alcohol and drugs, which is much more common than in people who have homes.
Methodology
A systematic review and meta-regression analysis of surveys estimating the prevalence of mental disorders in homeless populations.
Potential Biases
Variations in study design and sample selection may introduce bias in prevalence estimates.
Limitations
Substantial heterogeneity in prevalence estimates and reliance on survey response rates may affect the accuracy of findings.
Participant Demographics
The sample included 5,684 homeless individuals from various countries, with a weighted average age of 40.1 years.
Statistical Information
Confidence Interval
95% CI 27.8%–48.0% for alcohol dependence; 95% CI 13.2%–35.6% for drug dependence; 95% CI 10.2%–15.2% for psychosis; 95% CI 8.4%–14.4% for major depression.
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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