Comparative Responses to 15 Different Antidepressants in Major Depressive Disorder

Comparative Responses to 15 Different Antidepressants in Major Depressive Disorder - Results From a Long-term Nation-wide Population-based Study Emulating a Randomized Trial

Achieving results from RCTs with high internal and external validity is a major challenge within psychiatry due to the nature of psychiatric illnesses. The Investigators will conduct a "real world" naturalistic nation-wide population-based longitudinal register linkage study comparing long-term responses to all kinds of antidepressants in patients with major depressive disorder emulating a randomized trial.

Inclusion Criteria:

All patients with a psychiatric contact (as inpatients or outpatients) in the period from 1995 to 2018 with a first main index diagnosis of a single depressive episode or recurrent depressive disorder (ICD-10 code: F32-F33.9) with an outpatient purchase of an antidepressant after the depression diagnosis (N=73.336).

Exclusion Criteria:

None.