Brief admission by self-referral as an add-on to usual care for individuals with self-harm at risk of suicide: cost-effectiveness and 4-year health-economic consequences after a Swedish randomized controlled trial.

BA is likely to produce QALY gains for individuals living with self-harm and suicidality. Cost-effectiveness depends on targeting high-need individuals and comparable bed utilization between BA and other psychiatric admissions. Future research should elaborate the explanatory factors for individual variations in the usage and benefit of BA.