The Association between Sarcoidosis and Ischemic Heart Disease—A Healthcare Analysis of a Large Israeli Population

Abstract

(1) Background: Inflammation plays a pivotal role in atherosclerosis, and the association between chronic inflammatory states and ischemic heart disease (IHD) has been shown in several rheumatic diseases. Persistent inflammation might also be a risk factor for IHD in sarcoidosis patients. (2) Methods: Demographic and clinical data of 3750 sarcoidosis patients and 18,139 age- and sex-matched controls were retrieved from the database of Clalit Health Services, Israel’s largest healthcare organization. Variables associated with IHD were assessed by a logistic regression model. To assess for variables that were related to increased risk of all-cause mortality, the Cox proportional hazards method was used, and a log-rank test was performed for survival analysis. (3) Results: Both groups were composed of 64% females with a median age of 56 years. An association between sarcoidosis and IHD was demonstrated by a multivariate analysis (adjusted odds ratio (OR) 1.5; 95% confidence interval (CI) 1.36–1.66). Long-term follow-up revealed increased mortality among sarcoidosis patients: 561 (15%) deaths compared to 1636 (9%) deaths among controls (p < 0.001). Survival analysis demonstrated that sarcoidosis patients were also at increased risk for all-cause mortality compared to controls (multivariate model, adjusted HR 1.93; 95% CI 1.76–2.13).

Keywords

• sarcoidosis
• ischemic heart disease
• comorbidities