1. Adults with ADHD experience significantly lower life expectancy compared to those without the condition.
2. Males and females with ADHD lost approximately 6.78 and 8.64 years of life, respectively, compared to counterparts without a diagnosis.
3. Individuals with ADHD had higher mortality rates, elevated rates of physical and mental health conditions, and lifestyle risk factors.
4. The findings suggest a need for improved service pathways and awareness of health needs to reduce the risk of premature mortality in individuals with ADHD.
5. Sensitivity analyses including possible unregistered deaths did not meaningfully alter the findings.
6. Ethnicity data were not included in the analysis due to non-random missingness in the dataset.
7. The study found a potential for new initiatives, such as improved service pathways and awareness of health needs among people with ADHD, to reduce the risk of premature mortality.

Source: The British Journal of Psychiatry