Original Research J Clin Psychiatry September 2026

Impact of Cannabis Use on Time to Psychiatric Rehospitalization in Young Adults With Bipolar and Psychotic Disorders: A Survival Analysis

JCP 2026;87(4):10.4088/JCP.25m16257

Full Article Read the complete peer-reviewed article in J Clin Psychiatry. Clinical Summary Young adults hospitalized for bipolar or psychotic disorders often have concurrent cannabis use, and the period just after discharge is when relapse and rehospitalization can happen fast. This study helps clinicians identify whether cannabis use at admission marks a higher near-term rehospitalization risk and where postdischarge efforts should be concentrated. FAQ Does cannabis use increase the risk of psychiatric rehospitalization in young adults with bipolar or psychotic disorders?

Key Takeaways Cannabis exposure was common at admission: 43% were current users, 67% of current cannabis users used daily, and 13% of the full sample had multiple substance use, supporting routine substance-use assessment in psychiatric inpatient care for young adults with bipolar disorder and psychotic disorders. Clinical Guide How should clinicians identify young adults with bipolar or psychotic disorders who are at highest risk of early psychiatric rehospitalization after discharge? Clinical Guide How should clinicians structure discharge and early follow-up care for young adults with bipolar or psychotic disorders who report current cannabis use?