Suicide among older adults in Austria

Background: Suicide rates are highest among older adults. Yet, little is known regarding differences in suicide risk of older adults in Austria. This nationwide, retrospective cohort study aimed to characterize suicides among older adults in Austria during 2014-2023 and examine differences those who were young-old (65-74), middle-old (75-84), and oldest-old (85 +). Methods: We applied a cohort design to individual-level linkage data on all residents in Austria aged 65 years and older during 2014-2022 (N = 2,442,939). We compared characteristics of individuals who died by suicide and other causes of death, as well as by age group (i.e., young-old, middle-old, oldest-old) using trend tests and odds ratios. We calculated crude incidence rates of suicide per age group and sex. Results: During 2014-2023, 4,724 older adults died by suicide in Austria. The overall suicide rate was 23.4 per 100,000 person-years, while males had higher rates than females. Suicide rates increased with age and peaked among the oldest-old (33.2/100,000). Hanging, firearms, and jumping were the predominant methods, and the prevalence of hanging increased relative with increasing age. With increasing age, also widowhood and cardiovascular and genitourinary disorders were more prevalent among those who died by suicide. Conclusions: In Austria, oldest-old adults have the highest suicide rates, especially for males. whereas rates were considerably lower and did not change throughout old age for females. Distinct differences in suicide rates with respect to marital status, health conditions, and suicide methods. This emphasizes the need for preventive strategies to target older adults at different stages of life.