Experiences of social isolation and loneliness in middle-aged and older autistic adults

Background Young autistic people often experience social isolation and loneliness. Despite social isolation and loneliness increasing in later life in non-autistic populations, no studies have examined whether middle-aged and older autistic adults are at an increased likelihood of these experiences. Methods 428 adults (autistic n = 265) aged 40–93 years (mean = 60.5 years) completed questionnaires related to social connectedness/isolation, loneliness, and mental health. Group differences and associations were examined. Results The autistic group was less socially connected and lonelier than the non-autistic group. While there were few gender differences in social connectedness, women were lonelier than men in both groups, including when controlling for age and mental health. Social connectedness decreased with age in both groups, loneliness only increased with age in the autistic group. For both social connectedness and loneliness, age associations were significantly stronger in men than women. Conclusions Autistic adults may be particularly susceptible to social isolation and loneliness in midlife and older age. While autistic women were lonelier than autistic men, autistic men may be at greater risk of increasing social isolation and loneliness with older age. This study highlights the need for evidence-based interventions to address social isolation and to reduce loneliness for autistic people as they age.