Comparing the prevalence, incidence and severity of mental disorders between deaf and hard-of-hearing and hearing adults aged 18–60: a systematic review

Most available evidence indicates that the prevalence and severity of mental disorders are higher among DHH adults aged 18-60 years than among hearing adults, with limited evidence on incidence. No studies reported lower aggregated mental disorder outcomes for DHH adults. Addressing these disparities requires targeted intervention research, supported by population-based, longitudinal and (quasi-)experimental studies including comprehensive reporting of participant characteristics. This will inform more tailored interventions, improve screening and ultimately contribute to better mental health and quality of life for DHH adults.