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BMC Psychiatry

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Open Access 01-12-2021 | Coronary Heart Disease | Research

Cost-effectiveness of a stepped care program to prevent depression among primary care patients with diabetes mellitus type 2 and/or coronary heart disease and subthreshold depression in comparison with usual care

Authors: S. E. M. van Dijk, A. D. Pols, M. C. Adriaanse, H. W. J. van Marwijk, M. W. van Tulder, J. E. Bosmans

Published in: BMC Psychiatry | Issue 1/2021

Abstract

Background

Patients with diabetes mellitus type 2 (DM2) and/or coronary heart disease (CHD) are at high risk to develop major depression. Preventing incident major depression may be an important tool in reducing the personal and societal burden of depression. The aim of the current study was to assess the cost-effectiveness of a stepped care program to prevent major depression (Step-Dep) in diabetes mellitus type 2 and/or coronary heart disease patients with subthreshold depression in comparison with usual care.

Methods

An economic evaluation with 12 months follow-up was conducted alongside a pragmatic cluster-randomized controlled trial from a societal perspective. Participants received care as usual (n = 140) or Step-Dep (n = 96) which consisted of four sequential treatment steps: watchful waiting, guided self-help, problem solving treatment and referral to a general practitioner. Primary outcomes were quality-adjusted life years (QALYs) and cumulative incidence of major depression. Costs were measured every 3 months. Missing data was imputed using multiple imputation. Uncertainty around cost-effectiveness outcomes was estimated using bootstrapping and presented in cost-effectiveness planes and acceptability curves.

Results

There were no significant differences in QALYs or depression incidence between treatment groups. Secondary care costs (mean difference €1644, 95% CI €344; €3370) and informal care costs (mean difference €1930, 95% CI €528; €4089) were significantly higher in the Step-Dep group than in the usual care group. The difference in total societal costs (€1001, 95% CI €-3975; €6409) was not statistically significant. The probability of the Step-Dep intervention being cost-effective was low, with a maximum of 0.41 at a ceiling ratio of €30,000 per QALY gained and 0.32 at a ceiling ratio of €0 per prevented case of major depression.

Conclusions

The Step-Dep intervention is not cost-effective compared to usual care in a population of patients with DM2/CHD and subthreshold depression. Therefore, widespread implementation cannot be recommended.

Trial registration

The trial was registered in the Netherlands Trial Register (NTR3715).

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Title: Cost-effectiveness of a stepped care program to prevent depression among primary care patients with diabetes mellitus type 2 and/or coronary heart disease and subthreshold depression in comparison with usual care
Authors: S. E. M. van Dijk
A. D. Pols
M. C. Adriaanse
H. W. J. van Marwijk
M. W. van Tulder
J. E. Bosmans
Publication date: 01-12-2021
Publisher: BioMed Central
Keywords: Coronary Heart Disease
Mood Disorders
Care
Affective Disorder
Type 2 Diabetes
Published in: BMC Psychiatry / Issue 1/2021
Electronic ISSN: 1471-244X
DOI: https://doi.org/10.1186/s12888-021-03367-z

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Cost-effectiveness of a stepped care program to prevent depression among primary care patients with diabetes mellitus type 2 and/or coronary heart disease and subthreshold depression in comparison with usual care

Abstract

Background

Methods

Results

Conclusions

Trial registration

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

Trial registration

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