A 38-year-old married man with a 10-year history of bipolar disorder type I presents to the emergency department following a suicide attempt by pesticide ingestion. His wife reports that over the past 3 months he has had multiple depressive episodes with psychotic features, poor medication adherence, and recent loss of employment. On examination, he appears withdrawn, makes poor eye contact, and admits to persistent suicidal ideation. His last manic episode was 8 months ago. Which of the following is the MOST significant risk factor for completed suicide in this patient?

Explanation

## Suicide Risk Assessment in Bipolar Disorder ### Key Risk Factors in This Case **High-Yield:** The most robust predictor of completed suicide is a PREVIOUS SUICIDE ATTEMPT combined with recent psychosocial stressors (job loss, relationship conflict). This patient has already demonstrated suicidal intent through action. **Key Point:** The SAD PERSONS mnemonic captures acute risk, but the patient's constellation of factors—prior attempt, male gender, age >35, depressive episode with psychosis, poor adherence, recent loss—creates a cumulative high-risk profile. However, the SINGLE MOST SIGNIFICANT factor is the history of previous attempt. ### Risk Stratification in Bipolar Disorder | Risk Factor | Relative Impact | Notes | |---|---|---| | Prior suicide attempt | **Highest** | 30–40× increased risk of completion | | Male gender | High | 3–4× more likely to complete than females | | Age 35–64 years | High | Peak risk in middle age | | Psychotic features | Moderate–High | Increases lethality and impulsivity | | Recent stressor (job loss) | Moderate | Acute destabilization | | Poor medication adherence | Moderate | Loss of mood stabilization | | Duration of illness | Low–Moderate | Not as predictive as acute factors | **Clinical Pearl:** In bipolar disorder, the transition from depression to mixed or dysphoric mania carries the highest acute suicide risk because agitation + hopelessness + impulsivity converge. ### Why This Patient Is High-Risk 1. **Prior attempt** = demonstrated intent and means-access 2. **Psychotic depression** = impaired reality testing + command hallucinations possible 3. **Recent job loss** = acute loss of identity and income 4. **Poor adherence** = uncontrolled mood swings **Mnemonic:** **SAD PERSONS** (for acute assessment): - **S**ex (male) - **A**ge (>45, or <19) - **D**epression (current) - **P**rior attempts - **E**thanol/substance use - **R**ational thinking loss (psychosis) - **S**ocial support loss - **O**rganized plan - **N**ewly prescribed psychotropic - **S**erious illness But **prior attempt** is the single strongest predictor in the literature. [cite:Harrison 21e Ch 397]