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Trajectories of depression and anxiety symptoms in coronary heart disease strongly predict health care costs

Published online by Cambridge University Press:  23 March 2020

J. Palacios
Affiliation:
Institute of psychiatry, psychology, and neuroscience, psychological medicine, London, United Kingdom
M. Khondoker
Affiliation:
Institute of psychiatry, psychology, and neuroscience, biostatistics, London, United Kingdom
A. Mann
Affiliation:
Institute of psychiatry, psychology, and neuroscience, health service and population research, London, United Kingdom
A. Tylee
Affiliation:
Institute of psychiatry, psychology, and neuroscience, health service and population research, London, United Kingdom
M. Hotopf
Affiliation:
Institute of psychiatry, psychology, and neuroscience, psychological medicine, London, United Kingdom

Abstract

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Introduction

There is little information describing the trajectories of depression and anxiety symptomatology in the context of coronary heart disease (CHD), and their comparison according to sociodemographic and disability measures, cardiac risk factors, and health care costs.

Methods

Using a primary care cohort of 803 patients with a diagnosis of CHD, a latent class growth curve model was developed to study the distinct trajectories of depression and anxiety symptoms (using the hospital anxiety and depression scale) over a 3-year period comprised of 7 distinct follow-up points. Multinomial regression analysis was then conducted to study the association between latent classes, baseline risk factors, and total health care costs across time.

Results

The 5-class model yielded the best combination of statistical best-fit analysis and clinical correlation. These classes were as follows: “stable asymptomatic” (n = 558), “worsening” (n = 64), “improving” (n = 15), “chronic high” (n = 55), and “fluctuating symptomatology” (n = 111). The comparison group was the “stable asymptomatic” class. The symptomatic classes were younger and had higher proportion of women, and were also associated with non-white ethnicity, being a current smoker, and having chest pain. Other measures of disease severity, such as a history of myocardial infarction and comorbidities, were not associated with class membership. The highest mean total health care costs across the 3 years were the “chronic high” and “worsening” class, with the lowest being the “improving” and “stable low” classes. The total societal costs for patients in the “chronic high” and “worsening” class were significantly higher, as compared to the “stable low” class.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
e-Poster Walk: Comorbidity/Dual pathologies and guidelines/Guidance - Part 2
Copyright
Copyright © European Psychiatric Association 2017
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