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Clinical Trial
. 2013 Jun;170(6):633-41.
doi: 10.1176/appi.ajp.2012.12020250.

Increase in Work Productivity of Depressed Individuals With Improvement in Depressive Symptom Severity

Affiliations
Clinical Trial

Increase in Work Productivity of Depressed Individuals With Improvement in Depressive Symptom Severity

Madhukar H Trivedi et al. Am J Psychiatry. .

Abstract

Objective: The authors sought to identify baseline clinical and sociodemographic characteristics associated with work productivity in depressed outpatients and to assess the effect of treatment on work productivity.

Method: Employed depressed outpatients 18-75 years old who completed the Work Productivity and Activity Impairment scale (N=1,928) were treated with citalopram (20-40 mg/day) in the Sequenced Treatment Alternatives to Relieve Depression study. For patients who did not remit after an initial adequate antidepressant trial (level 1), either a switch to sertraline, sustained-release bupropion, or extended-release venlafaxine or an augmentation with sustained-release bupropion or buspirone was provided (level 2). Participants' clinical and demographic characteristics and treatment outcomes were analyzed for associations with baseline work productivity and change in productivity over time.

Results: Education, baseline depression severity, and melancholic, atypical, and recurrent depression subtypes were all independently associated with lower benefit to work productivity domains. During level 1 treatment, work productivity in several domains improved with reductions in depressive symptom severity. However, these findings did not hold true for level 2 outcomes; there was no significant association between treatment response and reduction in work impairment. Results were largely confirmed when multiple imputations were employed to address missing data. During this additional analysis, an association was also observed between greater impairment in work productivity and higher levels of anxious depression.

Conclusions: Patients with clinically significant reductions in symptom severity during initial treatment were more likely than nonresponders to experience significant improvements in work productivity. In contrast, patients who achieved symptom remission in second-step treatment continued to have impairment at work. Patients who have demonstrated some degree of treatment resistance are more prone to persistent impairment in occupational productivity, implying a need for additional, possibly novel, treatments.

Trial registration: ClinicalTrials.gov NCT00021528.

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