Interstitial lung abnormalities, coronary heart disease and mortality

Area of Science:

• Pulmonary Medicine
• Cardiology
• Epidemiology

Background:

• Interstitial lung abnormalities (ILA) share risk factors with coronary heart disease (CHD), such as aging and smoking.
• The association between ILA and CHD is not well-established.
• Understanding this relationship is crucial for comprehensive patient care.

Purpose of the Study:

• To investigate the relationship between ILA and CHD.
• To examine the association of ILA and CHD with mortality.
• To determine the clinical significance of ILA as a comorbidity in CHD.

Main Methods:

• Utilized data from the COPDGene and AGES-Reykjavik studies.
• Assessed ILA, clinical CHD, and coronary artery calcium (CAC).
• Employed logistic regression and Cox proportional hazards models to analyze associations.

Main Results:

• 9% of subjects with CHD had ILA in both cohorts.
• ILA was associated with increased odds of CHD (OR 1.6 in both cohorts).
• Participants with both ILA and CHD faced significantly higher mortality risk (HR 2.0 and 1.3) and increased odds of respiratory death (OR 9.6 in AGES-Reykjavik).

Conclusions:

• ILA commonly co-occurs with CHD.
• ILA is associated with worse mortality outcomes in patients with CHD.
• ILA represents a clinically significant comorbidity in the context of CHD.