Suicides that occur during psychiatric hospitalization are tragic events causing immense distress to relatives, peers, and physicians. Suicide risk is particularly high in patients with mood disorders.

To identify a clinical risk profile which can be predictive of suicide in patients undergoing a major depressive episode, hospitalized and within three months after discharge.

We are going to include consecutively admitted depressed patients in San Raffaele Turro hospital (Milan), with a diagnosis of major depressive disorder or bipolar disorder, for a longitudinal prospective study. Demographical and clinical characteristics will be assessed. Barratt impulsiveness scale, aggression questionnaire, Hamilton psychiatric rating scale for depression, scale for suicide ideation, Columbia suicide severity rating scale will be administered to evaluate, respectively, traits of impulsiveness and aggression, severity of psychopathology and suicidal ideation. A follow-up program has been established to evaluate suicidal ideation one month and three months after discharge.

Considering suicide rates in other psychiatric wards, we retrospectively analyzed in our mood disorder unit the inpatient suicide rate of the last 3 years. In this period, we admitted 1794 patients. The suicide rate has been cumulatively of 0.17% (4 patients): 0.16% in 2014, 0.16% in 2015, and 0.19% in 2016. In the same period, outpatient suicide rate has been of 0.39%; 57.14% of outpatient suicides happened within three months after discharge.

Hospitalization and discharge are critical circumstances for psychiatric patients. Evaluation of risk factors will contribute to explain our ward suicide rate and hopefully to reduce it in the future.

The authors have not supplied their declaration of competing interest.