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Multimorbidity patterns in patients with heart failure: an observational Spanish study based on electronic health
Antonio Gimeno-Miguel1,2, Anyuli Gracia Gutiérrez3, Beatriz Poblador-Plou4,2
1EpiChron Research Group. IIS Aragón, Aragon Health Sciences Institute, Zaragoza, Spain agimenomi.iacs@aragon.es.
Insights
Heart failure patients commonly have multiple chronic diseases, forming distinct patterns. These multimorbidity patterns significantly increase hospitalization risk and impact mortality, highlighting the need for tailored care strategies.
Area of Science:
- Cardiology and Public Health
- Epidemiology of Chronic Diseases
Background:
- Heart failure (HF) is frequently accompanied by multiple comorbidities.
- Understanding the clustering of these comorbidities into multimorbidity patterns is crucial for effective patient management.
- Previous research has not fully characterized these patterns and their impact on HF patient outcomes.
Purpose of the Study:
- To characterize comorbidities in male and female heart failure patients.
- To identify distinct multimorbidity patterns within this population.
- To assess the impact of these patterns on hospitalization and mortality risks.
Main Methods:
- Retrospective observational study using electronic health records from the EpiChron Cohort.
- Analysis included 8488 women and 6182 men diagnosed with HF.
- Exploratory factor analysis and logistic/Cox regression were used to identify patterns and assess outcomes.
Main Results:
- Nearly all heart failure patients (98%) exhibited multimorbidity, averaging 7.8 chronic diseases.
- Six multimorbidity patterns were identified: cardiovascular, neurovascular, coronary, metabolic, degenerative, and respiratory.
- All patterns elevated hospitalization risk; cardiovascular, neurovascular, and respiratory patterns significantly increased 3-year mortality risk.
Conclusions:
- Multimorbidity is prevalent in heart failure, clustering into distinct patterns.
- These patterns differentially impact hospitalization and mortality in heart failure patients.
- Identifying these patterns may improve understanding of HF pathophysiology and prognosis, guiding future research and clinical strategies.
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.
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