Adaptation of the Suicide Crisis Inventory (Sci-2) in a Russian Internet Sample during the Covid-19 Epidemic

ABSTRACT

The article presents a new diagnostic category, Suicide Crisis Syndrome (SCS), which was proposed to the next revision of Diagnostic and Statistical Manual of Mental Disorders (DSM). Study objective: Adaptation of the Suicide Crisis Inventory (SCI-2) on a Russian sample. Participants: 618 responses to an internet-survey were used, the study lasted from June 16, 2020 to April 26, 2021. Age of the participants: 18-99 (.=26.9;SD=12.8). Gender 451 females (74.2%), 135 males (22.2%), 32 participants preferred not to answer or chose other gender identity. Instruments Suicide Crisis Inventory (SCI-2), Suicidal Narrative Inventory (SNI), Stressful Life Events Questionnaire, Columbia Suicide Severity Rating Scale (C-SSRS), questions about recent and lifetime suicidal behavior. Results: Confirmatory factor analyses confirmed the five-factor (chi(2)[1420]=5003.56, p<.001, CFI=.99, TLI=.99, RMSEA=.07, SRMR=.06) and one-factor (chi(2)[1430] = 9847.34, p<.001, CFI=.98, TLI=.98, RMSEA=.10, SRMR=.07) solutions of the inventory, with five-factor as a better solution (Delta chi(2)[10] = 4843.78, p <.001). Based on retrospective data (self-reports on suicidal attempts during the last month), SCI-2 showed good diagnostic qualities (AUC=.85, 95% CI [.72;.97]). The cut-off score was established (80), which indicates the presence of acute suicidal risk. Conclusions: Adaptation of the Suicide Crisis Inventory (SCI-2) went well, the instrument is ready for use for clinical and research purposes.