Work-Focused CBT Helps People With Depression and Anxiety Return to Work, Major Review Finds

Common mental disorders such as depression, anxiety and stress-related conditions have become one of the leading causes of long-term sickness absence and work disability across high-income countries. A new systematic review and meta-analysis published in BMC Psychology suggests that a treatment model built specifically around the workplace may offer a way out of that cycle. The review, led by Anna Finnes of Karolinska Institutet together with colleagues including Lars-Göran Öst of Stockholm University, evaluated work-focused cognitive behavioural therapy, or W-CBT, an adaptation of standard CBT in which returning to work is treated not as an afterthought but as a central therapeutic goal and an active context for applying cognitive and behavioural strategies.

The research team searched Medline, PsycINFO and Web of Science from their inception to December 2025, ultimately identifying 24 studies comprising 26 W-CBT treatment conditions and a combined total of 3,279 participants. All included studies involved working-age adults on sickness absence due to mild to moderate depression or anxiety, or stress-related conditions such as adjustment disorder and burnout. The studies came primarily from European welfare states, with the Netherlands contributing seven trials, Denmark five and Norway four, alongside two each from Germany, Sweden and the United States and one each from Canada and Japan. Seventeen of the studies were randomized controlled trials, while seven used non-randomized or pre-post designs.

What distinguishes W-CBT from conventional CBT is the deliberate integration of work participation throughout treatment. Therapists help patients restructure work-related beliefs, design behavioural experiments, undertake graded exposure to work demands and systematically solve practical workplace problems. In roughly a third of the included studies, the intervention also involved direct contact with a workplace representative. The interventions were delivered individually in 75 percent of the studies, mostly by psychologists, with a median of about eight sessions. Follow-up assessments, available for most treatment conditions, extended to a median of 8.5 months after treatment ended.

The headline clinical result is striking. Within treatment groups, psychiatric symptoms improved with a mean standardized effect size of g = 1.04 from pre- to post-treatment, a large effect by conventional benchmarks, and the improvement was essentially maintained at follow-up, with g = 1.09. Between-group comparisons told a more modest story: W-CBT outperformed control conditions with a small post-treatment effect of g = 0.28, which shrank to g = 0.11 at follow-up. Importantly, significant advantages over control conditions emerged only against waitlist controls, not against treatment as usual or other active CBT-based interventions, a pattern consistent with the broader psychotherapy literature in which effect sizes diminish as comparison conditions become more stringent.

The work-related findings are perhaps the most consequential for policy. At the end of treatment, 56 percent of participants had returned to work, rising to 87 percent at follow-up. Between-group analyses showed that participants receiving W-CBT had a significantly higher likelihood of full return to work than controls, with a pooled risk ratio of 1.23 at post-treatment and 1.15 at follow-up, both statistically significant. Self-reported work functioning also improved substantially within groups, and intriguingly, the follow-up effect size of 1.25 exceeded the post-treatment value of 0.97. This temporal pattern suggests that functional recovery lags behind symptom reduction, echoing prior evidence that people often return to full performance well after their clinical symptoms remit.

Moderator analyses offered partial support for the theoretical foundation of W-CBT. For within-group symptom outcomes, higher scores on both the CBT content subscale and the work-focused content subscale were associated with larger effects, as were a greater number of treatment sessions, indicating a dose-response relationship. More recent publication year and country of origin were also significant. Notably, therapist profession, treatment format, study setting, type of mental disorder and the presence of a formal workplace intervention did not significantly moderate outcomes, an encouraging signal that W-CBT can be delivered flexibly across professional groups and healthcare settings without losing effectiveness.

Beneath the encouraging headline numbers, however, the review uncovers a serious methodological problem that the authors argue threatens the validity of the entire return-to-work evidence base. Outcomes such as days of sickness absence or time to return to work are bounded at zero, heavily skewed and frequently zero-inflated, yet many primary studies analyzed them with statistical methods that assume normally distributed data. The authors show that in several studies the reported means and standard deviations implied impossible values, such as negative numbers of sick days. When bounded, skewed outcomes are pushed through ordinary linear models, the resulting estimates, confidence intervals and p-values can be invalid, and predictions can be nonsensical.

Time-to-event outcomes fared little better. Seven studies reported hazard ratios from Cox proportional hazards models, and the pooled effect was HR = 1.15, with a confidence interval crossing unity. The authors emphasize that hazard ratios are problematic for meta-analysis because they are non-collapsible, carry built-in selection bias, are sensitive to effect modification by covariates and depend on the length of follow-up, all of which undermine comparability across studies. They suggest alternatives such as risk differences or risk ratios, and point to modern tools like ordered beta regression for bounded data, while acknowledging that such models are difficult to integrate into conventional meta-analysis without access to individual participant data, which none of the included studies openly shared.

The reviewers also graded the methodological rigour of the field using the psychotherapy outcome study methodology rating scale, finding a median score of 16.5 out of a possible 44, well below the scores of around 22 reported in standard CBT effectiveness trials for depression and anxiety. Risk-of-bias assessments using the Cochrane RoB 2 tool found that only about a third of the randomized trials had low risk of bias, while most non-randomized studies rated as high or critical risk. Publication bias analyses, including robust Bayesian model-averaging, provided strong evidence for the genuine symptom-reducing effect of W-CBT and only weak evidence of bias, lending credibility to the core findings despite these weaknesses.

The public health stakes are considerable. Common mental disorders affect roughly one in six adults in Europe each year, and cross-national survey data indicate that around 30 percent of adults meet criteria for a mental disorder in their lifetime. Sickness absence due to these conditions is often prolonged and recurrent, and delayed or incomplete return to work can set people on a path toward labour market marginalization. The authors conclude that W-CBT is associated with meaningful symptom improvement and an increased likelihood of returning to work, and that it aligns naturally with primary care and occupational health services in many European countries. Their prescription for the field is twofold: continued development of interventions that integrate mental health treatment with work-focused strategies, and a decisive upgrade in how return-to-work outcomes are defined, measured and statistically modeled, in line with emerging core outcome sets. Without that methodological repair, they warn, the evidence supporting one of the most promising tools against work disability will remain harder to trust than it should be.

Subject of Research: Work-focused cognitive behavioural therapy for common mental disorders and its effects on psychiatric symptoms and return-to-work outcomes

Article Title: Work-focused cognitive behavioural therapy for common mental disorders: a systematic review and meta-analysis

Article References: Finnes, A., Johansson, M., Bernhardtz, R., & Öst, L.-G. (2026). Work-focused cognitive behavioural therapy for common mental disorders: a systematic review and meta-analysis. BMC Psychology, 14(1), Article 1374. https://doi.org/10.1186/s40359-026-05648-2

Image Credits: AI Generated

DOI: 10.1186/s40359-026-05648-2

Keywords: work-focused CBT, common mental disorders, return to work, sickness absence, depression, anxiety, meta-analysis, systematic review, occupational health, psychotherapy, hazard ratios, work disability