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Recovery from a recurrent major depressive episode
H M Kravitz1, R W Bloom, J Fawcett
1Department of Psychiatry, Rush Medical College, Chicago, Illinois, USA.
Depression and Anxiety
|September 22, 2000
Summary
Shorter depressive episodes predict better recovery from major depressive disorder (MDD). Even with adequate treatment, current episode length is key for recovery in recurrent MDD patients.
Area of Science:
- Psychiatry
- Clinical Psychology
- Neuroscience
Background:
- Major Depressive Disorder (MDD) recurrence is common.
- Recovery from Major Depressive Episodes (MDE) is influenced by various factors.
- Antidepressant treatment adequacy is a potential determinant of MDE recovery.
Purpose of the Study:
- To compare recovered and nonrecovered patients based on baseline sociodemographic, clinical, and episode-related factors.
- To identify key determinants of recovery from recurrent MDE.
- To investigate the role of episode length and treatment adequacy in MDE recovery.
Main Methods:
- Prospective, longitudinal study of 25 inpatients with recurrent MDD.
- Diagnosis using the Schedule for Affective Disorders and Schizophrenia-Lifetime Version (SADS-L).
- Recovery defined as >= 8 consecutive weeks of non-depressed status, assessed at 6 and 12 months using the Streamlined Longitudinal Interval Continuation Evaluation (SLICE).
Main Results:
- 52% of patients (13/25) met recovery criteria.
- 42.5% of patients remained depressed for at least 52 weeks.
- Recovered patients had significantly shorter preceding depressive episodes (P = .01).
Conclusions:
- The length of the current depressive episode is the most significant correlate of recovery from MDE recurrence, even with adequate antidepressant pharmacotherapy.
- Shorter episode duration is associated with a higher likelihood of recovery.
- Findings may be limited by small sample size and uncontrolled treatment.