Combined assessment of myocardial damage and electrical disturbance in chronic heart failure

Figure 2 Cardiac mortality and all cardiac events among the four groups based on heart-type fatty acid-binding protein level and QRS duration. Normal group (n = 136), H-FABP ≤ 4.5 ng/mL and QRS duration < 120 ms; QRS prolongation group (n = 20), H-FABP ≤ 4.5 ng/mL and QRS duration ≥ 120 ms; high H-FABP group (n = 125), H-FABP > 4.5 ng/mL and QRS duration < 120 ms; and high H-FABP + QRS prolongation group (n = 41), H-FABP > 4.5 ng/mL and QRS duration ≥ 120 ms. H-FABP: Heart-type fatty acid-binding protein.