Outcomes of Universal Suicide Risk Screening in Medical Inpatients

Universal screening for suicide risk has not been shown to reduce suicide rates or reliably predict suicide, but there have been few studies assessing other potential benefits of this practice. We aimed to investigate the feasibility of implementing a universal inpatient suicide risk screening protocol and determine if a positive suicide screen was predictive of the need for psychiatric admission, and if it reduced the length of stay prior to psychiatric admission.

We conducted a retrospective chart review of non-psychiatric admissions over 1 year at a tertiary care academic hospital. We calculated the proportion of patients screening positive for suicidal ideation (SI), and among those screening positive, the proportion receiving a psychiatric consult and being admitted to psychiatry. Length of stay among groups was determined. We performed chi square analysis and adjusted multivariate logistic regression comparing different demographics.

97.2% of patients were screened, with 2.6% screening positive. Of these patients, 44.6% received a psychiatric consultation and 9.2% were admitted to psychiatry. Psychiatric admissions who screened positive for SI averaged 5.7 days until transfer to psychiatry, compared to 17.9 days for those who screened negative. Suicide risk screening had a sensitivity of 62.0%, specificity of 97.6%, positive predictive value of 9.2%, and a negative predictive value of 99.8% for psychiatric admission.

Universal suicide risk screening is feasible and may help identify patients requiring psychiatric care sooner, reducing length of stay of those requiring psychiatric admission.