Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatment

Objectives Sick leave due to anxiety and depression is a heterogeneous process constituting a pressing public health issue. This longitudinal study aimed to identify sick leave trajectories among patients before, during and after work-focused treatment, in all 29.5 months. We then aimed to determine...

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Main Authors: Kenneth Sandin, Frederick Anyan, Kåre Osnes, Ragne Gunnarsdatter Hole Gjengedal, Jonas Sigurd Risberg Leversen, Silje Endresen Reme, Odin Hjemdal
Format: Article
Language:English
Published: BMJ Publishing Group 2021-09-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/11/9/e046336.full
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author Kenneth Sandin
Frederick Anyan
Kåre Osnes
Ragne Gunnarsdatter Hole Gjengedal
Jonas Sigurd Risberg Leversen
Silje Endresen Reme
Odin Hjemdal
author_facet Kenneth Sandin
Frederick Anyan
Kåre Osnes
Ragne Gunnarsdatter Hole Gjengedal
Jonas Sigurd Risberg Leversen
Silje Endresen Reme
Odin Hjemdal
author_sort Kenneth Sandin
collection DOAJ
description Objectives Sick leave due to anxiety and depression is a heterogeneous process constituting a pressing public health issue. This longitudinal study aimed to identify sick leave trajectories among patients before, during and after work-focused treatment, in all 29.5 months. We then aimed to determine the background and clinical characteristics of these trajectory groups.Methods Background and clinical data were collected by patient self-report (N=619) in an observational study in a specialised mental healthcare clinic. Sick leave was recorded from national registry data. A latent growth mixture model identified trajectories. Multinomial logistic regression determined differences in background characteristics while a one-way analysis of variance (ANOVA) identified clinical differences.Results We identified three trajectories: The ‘Resilient’ group (47.7%) had low sick leave throughout the period. The two other groups (‘Recovery’, 31.8% and ‘High risk’, 20.5%) had similar pretreatment trajectories: lower sick leave one year prior which increased to high sick leave at the start of treatment. After treatment, the ‘Recovery’ group made an almost full return to work while the ‘High risk’ group remained at high sick leave. The two groups with high sick leave had more women and higher age compared with the ‘Resilient’ group. All groups had similar clinical scores at the start of treatment, but the ‘High risk’ groups had residual depressive symptoms at the end of treatment. Effect sizes for anxiety and depression were moderate or large for all groups, (Cohen’s d=0.74–1.81), and 87.2% of the total sample were fully working one year after treatment.Conclusion We found three subgroups with distinctly different trajectories. Female gender and higher age were associated with high sick leave at the start of treatment, while residual depressive symptoms at the end of treatment predicted continued sick leave. The study points to the possibility of improving patient outcomes in the future by stratifying and tailoring treatment to patient characteristics.
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spelling doaj-art-a2cda1e66ee442298f1629795654418e2025-08-20T02:18:34ZengBMJ Publishing GroupBMJ Open2044-60552021-09-0111910.1136/bmjopen-2020-046336Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatmentKenneth Sandin0Frederick Anyan1Kåre Osnes2Ragne Gunnarsdatter Hole Gjengedal3Jonas Sigurd Risberg Leversen4Silje Endresen Reme5Odin Hjemdal6Division of Mental Health and Substance Abuse, Diakonhjemmet Hospital, Oslo, NorwayDepartment of Psychology, Norwegian University of Science and Technology, Trondheim, NorwayDivision of Mental Health and Substance Abuse, Diakonhjemmet Hospital, Oslo, NorwayDivision of Mental Health and Substance Abuse, Diakonhjemmet Hospital, Oslo, NorwayDivision of Mental Health and Substance Abuse, Diakonhjemmet Hospital, Oslo, NorwayDepartment of Psychology, University of Oslo, Oslo, NorwayDepartment of Psychology, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, NorwayObjectives Sick leave due to anxiety and depression is a heterogeneous process constituting a pressing public health issue. This longitudinal study aimed to identify sick leave trajectories among patients before, during and after work-focused treatment, in all 29.5 months. We then aimed to determine the background and clinical characteristics of these trajectory groups.Methods Background and clinical data were collected by patient self-report (N=619) in an observational study in a specialised mental healthcare clinic. Sick leave was recorded from national registry data. A latent growth mixture model identified trajectories. Multinomial logistic regression determined differences in background characteristics while a one-way analysis of variance (ANOVA) identified clinical differences.Results We identified three trajectories: The ‘Resilient’ group (47.7%) had low sick leave throughout the period. The two other groups (‘Recovery’, 31.8% and ‘High risk’, 20.5%) had similar pretreatment trajectories: lower sick leave one year prior which increased to high sick leave at the start of treatment. After treatment, the ‘Recovery’ group made an almost full return to work while the ‘High risk’ group remained at high sick leave. The two groups with high sick leave had more women and higher age compared with the ‘Resilient’ group. All groups had similar clinical scores at the start of treatment, but the ‘High risk’ groups had residual depressive symptoms at the end of treatment. Effect sizes for anxiety and depression were moderate or large for all groups, (Cohen’s d=0.74–1.81), and 87.2% of the total sample were fully working one year after treatment.Conclusion We found three subgroups with distinctly different trajectories. Female gender and higher age were associated with high sick leave at the start of treatment, while residual depressive symptoms at the end of treatment predicted continued sick leave. The study points to the possibility of improving patient outcomes in the future by stratifying and tailoring treatment to patient characteristics.https://bmjopen.bmj.com/content/11/9/e046336.full
spellingShingle Kenneth Sandin
Frederick Anyan
Kåre Osnes
Ragne Gunnarsdatter Hole Gjengedal
Jonas Sigurd Risberg Leversen
Silje Endresen Reme
Odin Hjemdal
Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatment
BMJ Open
title Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatment
title_full Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatment
title_fullStr Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatment
title_full_unstemmed Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatment
title_short Sick leave and return to work for patients with anxiety and depression: a longitudinal study of trajectories before, during and after work-focused treatment
title_sort sick leave and return to work for patients with anxiety and depression a longitudinal study of trajectories before during and after work focused treatment
url https://bmjopen.bmj.com/content/11/9/e046336.full
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