IL6 and coronary artery disorder: On average, we detected elevated levels of IL-6 in both obstructive and non-obstructive CAD patients (median [IQR]: 12.2 [0.0–31.4] pg/ml in non-obstructive CAD; 8.5 [0.4–23.5] pg/ml in obstructive CAD; p = 0.96) suggesting that both conditions are associated to a state of low-grade inflammation (Fig. 2).