Health conditions and service use of autistic women and men: A retrospective population-based case-control study

This study used administrative data to compare the socio-demographics, health conditions, and health service use of autistic adults with adults with and without other developmental disabilities, after matching for age and sex. Autistic women and men were more likely to have a wide range of physical and mental health conditions compared to adults without developmental disabilities. Rates of co-occurring health conditions were similar or lower among autistic adults compared to adults with other developmental disabilities, except for a higher prevalence of psychiatric conditions among autistic adults. Notably increased psychiatric service use was evident among autistic women and men compared to the other groups. Among age-matched autistic women and men, significant differences were found for physical (i.e. Crohn's disease/colitis, rheumatoid arthritis) and psychiatric conditions (i.e. psychotic disorders, non-psychotic disorders), as well as service use (i.e. emergency department visits, hospitalizations, family doctor and neurologist visits). These findings suggest autistic adults have high health care needs, as do adults with other developmental disabilities. Mental health support is especially critical for autistic adults and research examining sex and gender effects will assist in tailoring health promotion and intervention efforts. Lay abstract This study used administrative data from Ontario, Canada to compare the health conditions and service use of autistic women and men with adults with other developmental disabilities and with adults without developmental disabilities. Autistic women and men were more likely to have physical and mental health conditions compared to adults without developmental disabilities. Rates of health conditions were similar or lower among autistic adults compared to adults with other developmental disabilities, except more autistic adults had psychiatric conditions. Autistic women and men used higher rates of psychiatric services compared to all other groups. When comparing autistic women with same aged autistic men, sex differences were found for specific physical (Crohn's disease/colitis, rheumatoid arthritis) and psychiatric conditions (psychotic disorders, non-psychotic disorders), as well differences in service use (emergency department visits, hospitalizations, family doctor and neurologist visits). These results further highlight the high health needs and service use of autistic women and men, as well as adults with other developmental disabilities. It is critical for future research to focus on mental health support for autistic adults and to better understand how to tailor supports to best serve autistic women.