Depression
Conditions
Keywords
Depressive disorder, Behavior therapy, Workplace, Subthreshold depression
Brief summary
The purpose of the study is to examine the effectiveness of telephone cognitive-behavioral therapy for subthreshold depression and presenteeism in workplace, in comparison with treatment-as-usual (TAU) (which is minimal contact through Employers Assistance Program (EAP)).
Interventions
BEHAVIORALCBT
Telephone cognitive-behavioral therapy
BEHAVIORALEAP
Employees Assistance Program
Sponsors
Nagoya City University
Kyoto University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
20 Years to 57 Years
Healthy volunteers
No
Inclusion criteria
* Age 20-57 at study entry \[because the retirement age is usually 60, we have to recruit the patients well before 60 in order to allow time for follow-up\] * Men and women * Currently employed full-time (either regular or temporary) by the business company * Expected to be employed full-time for 2 years after screening * K6 scores greater than or equal to 9 (or 10) at screening * BDI2 scores greater than or equal to 10 at 2nd screening (Composite International Diagnostic Interview (CIDI) interview)
Exclusion criteria
* Part-time employees * Sick leave for 6 or more days for a physical or mental condition in the past month * Expected to be on pregnancy leave, maternity leave or nursing leave within 2 years after screening * Current treatment for a mental health problem from a mental health professional * Major depressive episode in the past month, as ascertained by CIDI \[We do not exclude dysthymia or major depression in partial remission\] * Lifetime history of bipolar disorder, as ascertained by CIDI * Any substance dependence in the past 12 months, as ascertained by CIDI. \[We do not exclude substance abuse.\] * Any other current mental disorder if it constitutes the predominant aspect of the clinical presentation and requires treatment not offered in the project * Those who have already received the telephone CBT in the pilot runs
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Depression severity as measured by Beck Depression Inventory-II (BDI2) | 4 months post-randomization |
| Work performance as measured by the Health and Work Performance Questionnaire (HPQ) effective hours worked for the past month | 4 months post-randomization |
Secondary
| Measure | Time frame |
|---|---|
| Depression severity as measured by BDI2 and K6 | 15 months post-randomization |
| Work performance as measured by HPQ and by job retention | 15 months post-randomization |
| Client satisfaction as measured by VAS | 15 months post-randomization |
| Depression severity as measured by Kessler Scale (K6) | 4 months post-randomization |
| Suicidal attempt and/or hospitalization (physical or mental) | 15 months post-randomization |
| Time to incident major or minor depressive episode | 15 months post-randomization |
| Use of EAP services and other health services | 15 months post-randomization |
| Client satisfaction as measured by Visual Analogue Scale (VAS) | 4 months post-randomization |
Countries
Japan
Outcome results
None listed