Hospitalizations for Suicidal Events: Reiteration Risk—The Experience in the Veneto Region, Italy

Abstract

Suicidality poses a significant public health threat and stands as a leading cause of death and disability. Aside from committed suicides, a substantial portion of suicidal behaviors comprises suicide attempts and suicidal ideation. These events may be characterized by a non-fatal outcome, shedding light on the possibility of recurrence. The objectives of the present study were to assess hospitalization rate trends related to any suicidal event and to elucidate the risk factors associated with recurrent suicidal behaviors. In this population-based study, an observational descriptive analysis was conducted on all hospital discharge forms (HDRs, Italian SDO) registered for the residents of the Veneto Region from 2012 to 2021. Cases of attempted suicide (AS) and suicidal ideation (SI) were defined according to ICD coding. Age-standardized hospitalization rates were computed with the direct method. Join Point Regression was used to assess the significance of variations in trends. Factor risks for the reiteration of suicidal behaviors were assessed by multivariate logistic regression. Higher prevalence of SI occurred among individuals under 40 years of age and those affected by psychiatric disorders. Conversely, among individuals aged 60 and above, AS was more common. SI turned out to be associated with a higher likelihood of reiteration compared to AS. Individuals suffering from personality disorders and those with a history of AS as index case exhibited increased risk for the reiteration of AS. Females, younger individuals, and individuals experiencing SI as first episode were instead identified as more likely to repeat this form of suicidal behavior. Contemporary economic and environmental crises, a recent pandemic, and numerous conflicts represent significant additional menaces to mental well-being. Our analysis highlights a concerning positive trend in suicide attempts and ideations, underscoring the imperative for Public Health Systems to implement targeted preventive strategies and mental health promotion campaigns. In the absence of structured suicide registries, we demonstrated that HDRs can serve as an invaluable foundation for preventionists to address the phenomenon and strategically plan interventions.