Recovery and Outcomes of Major Depression: A 10-Year Follow-Up Study
Author Information
Author(s): Toshi A. Furukawa, A. Fujita, H. Harai, R. Yoshimura, T. Kitamura, K. Takahashi
Primary Institution: Nagoya City University Graduate School of Medical Sciences
Hypothesis
A more valid definition of recovery should define a change point until which the syndrome is relatively continuous, but after which a return of the syndrome will become reasonably unlikely.
Conclusion
Requiring 4 or 6 months of remission before declaring recovery leads to a lower likelihood of subthreshold recurrence.
Supporting Evidence
- Requiring two months of remission is probably too short to declare recovery.
- Requiring 4 or 6 months before declaring recovery leads to a median time to subthreshold recurrence of nearly 3 years.
- Requiring 12 months of remission would inflate the rate of chronicity.
Takeaway
This study looked at how long someone needs to be better before we can say they are fully recovered from depression. It found that waiting 4 to 6 months is better than just 2 months.
Methodology
The study used Kaplan–Meier survival analyses to estimate time to recovery and recurrence in a multi-center follow-up of untreated major depressive episodes.
Potential Biases
The study was naturalistic, which may introduce variability in treatment received.
Limitations
The sample size was relatively small and the treatments were not controlled.
Participant Demographics
The cohort consisted of 95 patients, with 59% females and a mean age of 44.3 years.
Digital Object Identifier (DOI)
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