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Multimorbidity patterns in patients with heart failure: an observational Spanish study based on electronic health records

Published: December 23, 2019
Category: Bibliography
Authors: Alexandra Prados-Torres, Amaia Calderón-Larrañaga, Antonio Gimeno-Miguel, Anyuli Gracia Gutiérrez, Beatriz Poblador-Plou, Carlos Coscollar-Santaliestra, Fernando J Ruiz-Laiglesia, J Ignacio Pérez-Calvo, Miguel J Divo
Country: Spain
Language: English
Type: Population Health
Settings: Health Plan, Specialist

Abstract

Objectives

To characterise the comorbidities of heart failure (HF) in men and women, to explore their clustering into multimorbidity patterns, and to measure the impact of such patterns on the risk of hospitalisation and mortality.

Design

Observational retrospective population study based on electronic health records.

Setting

EpiChron Cohort (Aragón, Spain).

Participants

All the primary and hospital care patients of the EpiChron Cohort with a diagnosis of HF on 1 January 2011 (ie, 8488 women and 6182 men). We analysed all the chronic diseases registered in patients’ electronic health records until 31 December 2011.

Primary outcome

We performed an exploratory factor analysis to identify the multimorbidity patterns in men and women, and logistic and Cox proportional-hazards regressions to investigate the association between the patterns and the risk of hospitalisation in 2012, and of 3-year mortality.

Results

Almost all HF patients (98%) had multimorbidity, with an average of 7.8 chronic diseases per patient. We identified six different multimorbidity patterns, named cardiovascular, neurovascular, coronary, metabolic, degenerative and respiratory. The most prevalent were the degenerative (64.0%) and cardiovascular (29.9%) patterns in women, and the metabolic (49.3%) and cardiovascular (43.2%) patterns in men. Every pattern was associated with higher hospitalisation risks; and the cardiovascular, neurovascular and respiratory patterns significantly increased the likelihood of 3-year mortality.

Conclusions

Multimorbidity is the norm rather than the exception in patients with heart failure, whose comorbidities tend to cluster together beyond simple chance in the form of multimorbidity patterns that have different impact on health outcomes. This knowledge could be useful to better understand common pathophysiological pathways underlying this condition and its comorbidities, and the factors influencing the prognosis of men and women with HF. Further large scale longitudinal studies are encouraged to confirm the existence of these patterns as well as their differential impact on health outcomes.

multimorbidity, heart failure, neurovascular, cardiovascular, respiratory patterns

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