Inpatient Treatment Duration for Moderate Depression (Cited Evidence)

Typical Inpatient Length of Stay

The majority of patients with moderate, non‑psychotic depression are hospitalized for 5–9 weeks (approximately 35–63 days). 1

Recurrent depressive disorder (i.e., not a first episode) is associated with a longer inpatient stay. 1
Impaired social functioning predicts an extended duration of hospitalization. 2
A history of a prior suicide attempt is paradoxically linked to a shorter inpatient stay. 2

The acute phase of treatment is defined as 6–12 weeks, typically delivered as an inpatient stay. 2
After successful acute treatment, the continuation phase should last 4–9 months of ongoing antidepressant therapy. 3
For patients with recurrent episodes, a maintenance phase of ≥1 year is recommended. 2
Individuals with two or more depressive episodes require therapy beyond the standard 4–9 months, extending the continuation period. 4

Clinical response should be evaluated within 6–8 weeks of initiating treatment; if the response is inadequate, the treatment plan must be modified (e.g., consider alternative strategies or extended inpatient care). 4