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INDACO project: COPD and link between comorbidities, lung function and inhalation therapy.
Giorgio Fumagalli1, Fabrizio Fabiani2, Silvia Forte2
1Pulmonary Departments, San Filippo Neri General Hospital, Rome, Italy ; UOC Pneumologia, A.C.O. San Filippo Neri, Via Martinotti, 20, 00135 Rome, Italy.
Over 80% of Chronic Obstructive Pulmonary Disease (COPD) patients have comorbidities, which significantly influence treatment complexity. Gender differences in comorbidity prevalence were observed, impacting inhalation therapy decisions.
Area of Science:
- Pulmonary Medicine
- Internal Medicine
- Epidemiology
Background:
- Chronic Obstructive Pulmonary Disease (COPD) involves respiratory and systemic complications, including comorbidities that increase hospitalization and affect outcomes.
- These comorbidities can impact various organs and systems, complicating patient management.
- Current inhalation therapy for COPD primarily targets airflow obstruction, symptoms, and exacerbations.
Purpose of the Study:
- To evaluate the prevalence and types of comorbidities in COPD patients.
- To investigate the relationship between comorbidities and patient characteristics (sex, age, symptoms, lung function).
- To assess the impact of comorbidities on COPD inhalation therapy prescription.
Main Methods:
- Data from 569 COPD patients were analyzed, including anthropometric data, smoking history, respiratory function (GOLD stage), BMI, exacerbation history, and comorbidities.
- The Charlson Comorbidity Index (CCI) was used to quantify comorbidity burden.
- Relationships between comorbidities and clinical factors, as well as therapy complexity, were examined.
Main Results:
- A high prevalence of comorbidities (81.2%) was observed in COPD patients.
- Comorbidity number correlated with COPD exacerbations, dyspnea (MRC scale), and male gender, but not airflow obstruction or age.
- Ischemic heart disease was more common in males, while mood disorders were more prevalent in females.
- Complex inhalation therapy was associated with bronchial obstruction (FEV1/FVC) and the number of comorbidities.
- Multivariate analysis indicated airflow obstruction and comorbidity count as determinants of therapy complexity, though the model's explanatory power was low (r²=0.07).
Conclusions:
- COPD patients exhibit a high prevalence of comorbidities, with gender-specific patterns.
- The number of comorbidities and airflow obstruction are key factors influencing inhalation therapy prescription.
- Dyspnea and exacerbations, contrary to guidelines, were not significant drivers of therapy in this real-world setting.
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