Interventions to improve return to work in depressed people.

BACKGROUND: Work disability such as sickness absence is common in people with depression. OBJECTIVES: To evaluate the effectiveness of interventions aimed at reducing work disability in employees with depressive disorders. SEARCH METHODS: We searched CENTRAL (The Cochrane Library), MEDLINE, EMBASE, CINAHL, and PsycINFO until January 2014. SELECTION CRITERIA: We included randomised controlled trials (RCTs) and cluster RCTs of work-directed and clinical interventions for depressed people that included sickness absence as an outcome. DATA COLLECTION AND ANALYSIS: Two authors independently extracted the data and assessed trial quality. We used standardised mean differences (SMDs) with 95% confidence intervals (CIs) to pool study results in the studies we judged to be sufficiently similar. We used GRADE to rate the quality of the evidence. MAIN RESULTS: We included 23 studies with 26 study arms, involving 5996 participants with either a major depressive disorder or a high level of depressive symptoms. We judged 14 studies to have a high risk of bias and nine to have a low risk of bias. Work-directed interventions We identified five work-directed interventions. There was moderate quality evidence that a work-directed intervention added to a clinical intervention reduced sickness absence (SMD -0.40; 95% CI -0.66 to -0.14; 3 studies) compared to a clinical intervention alone.There was moderate quality evidence based on a single study that enhancing the clinical care in addition to regular work-directed care was not more effective than work-directed care alone (SMD -0.14; 95% CI -0.49 to 0.21).There was very low quality evidence based on one study that regular care by occupational physicians that was enhanced with an exposure-based return to work program did not reduce sickness absence compared to regular care by occupational physicians (non-significant finding: SMD 0.45; 95% CI -0.00 to 0.91). Clinical interventions, antidepressant medication Three studies compared the effectiveness of selective serotonin reuptake inhibitor (SSRI) to selective norepinephrine reuptake inhibitor (SNRI) medication on reducing sickness absence and yielded highly inconsistent results. Clinical interventions, psychological We found moderate quality evidence based on three studies that telephone or online cognitive behavioural therapy was more effective in reducing sick leave than usual primary or occupational care (SMD -0.23; 95% CI -0.45 to -0.01). Clinical interventions, psychological combined with antidepressant medication We found low quality evidence based on two studies that enhanced primary care did not substantially decrease sickness absence in the medium term (4 to 12 months) (SMD -0.02; 95% CI -0.15 to 0.12). A third study found no substantial effect on sickness absence in favour of this intervention in the long term (24 months).We found high quality evidence, based on one study, that a structured telephone outreach and care management program was more effective in reducing sickness absence than usual care (SMD - 0.21; 95% CI -0.37 to -0.05). Clinical interventions, exercise We found low quality evidence based on one study that supervised strength exercise reduced sickness absence compared to relaxation (SMD -1.11; 95% CI -1.68 to -0.54). We found moderate quality evidence based on two studies that aerobic exercise was no more effective in reducing sickness absence than relaxation or stretching (SMD -0.06; 95% CI -0.36 to 0.24). AUTHORS' CONCLUSIONS: We found moderate quality evidence that adding a work-directed intervention to a clinical intervention reduced the number of days on sick leave compared to a clinical intervention alone. We also found moderate quality evidence that enhancing primary or occupational care with cognitive behavioural therapy reduced sick leave compared to the usual care. A structured telephone outreach and care management program that included medication reduced sickness absence compared to usual care. However, enhancing primary care with a quality improvement program did not have a considerable effect on sickness absence. There was no evidence of a difference in effect on sickness absence of one antidepressant medication compared to another. More studies are needed on work-directed interventions. Clinical intervention studies should also include work outcomes to increase our knowledge on reducing sickness absence in depressed workers.

Adjuvant occupational therapy improves long-term depression recovery and return-to-work in good health in sick-listed employees with major depression: results of a randomised controlled trial.

OBJECTIVES: To evaluate whether adjuvant occupational therapy (OT) can improve the effectiveness of treatment-as-usual (TAU) in sick-listed employees with major depression. METHODS: In total, 117 employees sick-listed for a median duration of 4.8 months (IQR=2.6 to 10.1 months) because of major depression were randomised to TAU (n=39) or adjuvant OT (TAU+OT; n=78). OT (18 sessions) focussed on a fast return to work (RTW) and improving work-related coping and self-efficacy. The primary outcome was work participation (hours of absenteeism+duration until partial/full RTW). Secondary outcomes were depression, at-work functioning, and health-related functioning. Intermediate outcomes were work-related, coping and self-efficacy. Blinded assessments occurred at baseline and 6, 12 and 18 months follow-up. RESULTS: The groups did not significantly differ in their overall work participation (adjusted group difference=-1.9, 95% CI -19.9 to +16.2). However, those in TAU+OT did show greater improvement in depression symptoms (-2.8, -5.5 to -0.2), an increased probability of long-term symptom remission (+18%, +7% to +30%), and increased probability of long-term RTW in good health (GH) (+24%, 12% to 36%). There were no significant group differences in the remaining secondary/intermediate outcomes. CONCLUSIONS: In a highly impaired population, we could not demonstrate significant benefit of adjuvant OT for improving overall work participation. However, adjuvant OT did increase long-term depression recovery and long-term RTW in GH (ie, full RTW while being remitted, and with better work and role functioning). TRIAL REGISTRATION DUTCH TRIAL REGISTER: NTR2057.

Effectiveness of adjuvant occupational therapy in employees with depression: design of a randomized controlled trial.

BACKGROUND: Major depressive disorder is among the medical conditions with the highest negative impact on work outcome. However, little is known regarding evidence-based interventions targeting the improvement of work outcomes in depressed employees. In this paper, the design of a randomized controlled trial is presented in order to evaluate the effectiveness of adjuvant occupational therapy in employees with depression. This occupational intervention is based on an earlier intervention, which was designed and proven effective by our research group, and is the only intervention to date that specifically targets work outcome in depressed employees. METHODS/DESIGN: In a two-arm randomized controlled trial, a total of 117 participants are randomized to either 'care as usual' or ' care as usual' with the addition of occupational therapy. Patients included in the study are employees who are absent from work due to depression for at least 25% of their contract hours, and who have a possibility of returning to their own or a new job. The occupational intervention consists of six individual sessions, eight group sessions and a work-place visit over a 16-week period. By increasing exposure to the working environment, and by stimulating communication between employer and employee, the occupational intervention aims to enhance self-efficacy and the acquisition of more adaptive coping strategies. Assessments take place at baseline, and at 6, 12, and 18-month follow-ups. Primary outcome measure is work participation (hours of absenteeism and time until work resumption). Secondary outcome measures are work functioning, symptomatology, health-related quality of life, and neurocognitive functioning. In addition, cost-effectiveness is evaluated from a societal perspective. Finally, mechanisms of change (intermediate outcomes) and potential patient-treatment matching variables are investigated. DISCUSSION: This study hopes to provide valuable knowledge regarding an intervention to treat depression, one of the most common and debilitating diseases of our time. If our intervention is proven (cost-) effective, the personal, economic, and health benefits for both patients and employers are far-reaching. TRIAL REGISTRATION NUMBER: NTR2057.

Predictors of impaired work functioning in employees with major depression in remission.

OBJECTIVES: This study aims to (i) assess work functioning in employees returning to work with a major depression in remission, (ii) study the predictors of impaired work functioning. METHODS: Participants diagnosed with major depressive disorder (MDD), on long term sick leave (mean 27 weeks) and treated in a specialized mental healthcare setting, were selected from an intervention study sample. They were eligible for this study if they were remitted from their depression and had returned to work for at least 50% of their contract hours at 18 month follow-up. Work functioning was assessed with the Work Limitations Questionnaire (WLQ) and the Need For Recovery scale (NFR). Potential predictors of impaired work functioning were demographic characteristics (assessed at baseline), health characteristics (assessed at baseline, six and twelve month follow-up), and personality- and work characteristics (assessed at 18 month follow-up). RESULTS: After their return to work with MDD in remission, employees were on average still impaired in their work functioning. Personality characteristics were the strongest predictor of this impaired work functioning, followed by health and work characteristics. In the final prediction model, only a passive reaction coping style remained as predictor. LIMITATIONS: We used self-report data with respect to work functioning and work characteristics and not an assessment by a supervisor. CONCLUSIONS: Personality trait, coping style, and ability to manage the work environment should be addressed in mental health and return-to-work interventions. Subsequent improved work functioning may be beneficial for mental health and may reduce societal costs.

Perceived impeding factors for return-to-work after long-term sickness absence due to major depressive disorder: a concept mapping approach.

OBJECTIVE: The purpose of the present study was to explore various stakeholder perspectives regarding factors that impede return-to-work (RTW) after long-term sickness absence related to major depressive disorder (MDD). METHODS: Concept mapping was used to explore employees', supervisors' and occupational physicians' perspectives on these impeding factors. RESULTS: Nine perceived themes, grouped in three meta-clusters were found that might impede RTW: Person, (personality / coping problems, symptoms of depression and comorbid (health) problems, employee feels misunderstood, and resuming work too soon), Work (troublesome work situation, too little support at work, and too little guidance at work) and Healthcare (insufficient mental healthcare and insufficient care from occupational physician). All stakeholders regarded personality/coping problems and symptoms of depression as the most important impeding theme. In addition, supervisors emphasized the importance of mental healthcare underestimating the importance of the work environment, while occupational physicians stressed the importance of the lack of safety and support in the work environment. CONCLUSIONS: In addition to the reduction of symptoms, more attention is needed on coping with depressive symptoms and personality problems in the work environment support in the work environment and for RTW in mental healthcare, to prevent long term sickness absence.

Longitudinal relationship between depressive symptoms and work outcomes in clinically treated patients with long-term sickness absence related to major depressive disorder.

BACKGROUND: Major depressive disorder (MDD) negatively affects a wide range of work outcomes (absenteeism, work productivity, work limitations). However, the exact longitudinal relationship between depressive symptoms and work outcomes in MDD patients with long-term sickness absence is still unclear. Therefore, the present study aimed to examine the temporal and directional relationship between depressive symptoms and various work outcomes in these patients. METHODS: Patients (n = 117) were diagnosed with MDD according to DSM-IV criteria, had a median duration of MDD-related sickness absence of 4.8 months (IQR = 2.6-10.1 months) at baseline, and were referred by occupational physicians. All patients received outpatient treatment for their MDD. Depressive symptoms and work outcomes were examined during baseline, and 6-, 12- and 18-month follow-ups. RESULTS: Within-subject changes in the severity of depressive symptoms were significantly related to within-subject changes in all work outcomes (all scales: p < 0.001). Earlier reduction in depressive symptoms predicted subsequent improvements in all work outcomes (all scales: p < 0.05). Conversely, only earlier improvement in Time Management (p = 0.007) and Mental/Interpersonal (p < 0.001) work limitations predicted a subsequent reduction in depressive symptoms. LIMITATIONS: All work outcomes were assessed through self-report. Work limitations at the start of absenteeism were retrospectively assessed. CONCLUSIONS: Symptom reduction remains crucial for improving adverse work outcomes in MDD patients with long-term sickness absence. In addition, a treatment focus on qualitative functioning in the workplace may accelerate depression recovery.

Predictors of long-term return to work and symptom remission in sick-listed patients with major depression.

OBJECTIVE: Although major depressive disorder (MDD) has substantial negative effects on work outcomes, little is known regarding how to promote a return to work (RTW) after MDD-related sickness absence. The present study aimed to examine predictors across multiple domains for long-term RTW in patients who are sick-listed because of their MDD, and to compare these with predictors for long-term symptom remission. METHOD: Participants (n = 117) were diagnosed with MDD according to DSM-IV criteria, absent from work for at least 25% of their contract hours, and referred by occupational physicians to outpatient treatment. Long-term full RTW (working the full number of contract hours for at least 4 weeks) and long-term symptom remission (Hamilton Depression Rating Scale score ≤ 7) were examined during the 18-month follow-up. Potential predictors (diagnostic, sociodemographic, personality, and work-related) were assessed at baseline. Data were collected from December 2007 to March 2011. RESULTS: Stepwise logistic regression analyses with backward elimination (P ≤ .05) resulted in a final prediction model including depression severity (odds ratio [OR] = 0.92; 95% CI, 0.87-0.97; P = .003), comorbid anxiety (OR = 0.21; 95% CI, 0.05-0.84; P = .028), work motivation (OR = 1.87; 95% CI, 1.18-2.96; P = .008), and conscientiousness (OR = 1.10; 95% CI, 1.02-1.18; P = .012) as predictors of long-term RTW. Long-term symptom remission was only predicted by depression severity (OR = 0.93; 95% CI, 0.89-0.98; P = .005). CONCLUSIONS: Whereas long-term symptom remission is only predicted by diagnostic factors, long-term RTW is also predicted by personal and work-related factors. These findings provide suggestions for the development of new interventions to improve both symptom remission and long-term RTW in sick-listed patients with MDD.

Towards a new definition of return-to-work outcomes in common mental disorders from a multi-stakeholder perspective.

OBJECTIVES: To examine the perspectives of key stakeholders involved in the return-to-work (RTW) process regarding the definition of successful RTW outcome after sickness absence related to common mental disorders (CMD's). METHODS: A mixed-method design was used: First, we used qualitative methods (focus groups, interviews) to identify a broad range of criteria important for the definition of successful RTW (N = 57). Criteria were grouped into content-related clusters. Second, we used a quantitative approach (online questionnaire) to identify, among a larger stakeholder sample (N = 178), the clusters and criteria most important for successful RTW. RESULTS: A total of 11 clusters, consisting of 52 unique criteria, were identified. In defining successful RTW, supervisors and occupational physicians regarded "Sustainability" and "At-work functioning" most important, while employees regarded "Sustainability," "Job satisfaction," "Work-home balance," and "Mental Functioning" most important. Despite agreement on the importance of certain criteria, considerable differences among stakeholders were observed. CONCLUSIONS: Key stakeholders vary in the aspects and criteria they regard as important when defining successful RTW after CMD-related sickness absence. Current definitions of RTW outcomes used in scientific research may not accurately reflect these key stakeholder perspectives. Future studies should be more aware of the perspective from which they aim to evaluate the effectiveness of a RTW intervention, and define their RTW outcomes accordingly.