AUC area and H-FABP cut-off point in diagnosis STEMI H-FABP (ng / ml) AUC 95% CI p 0, 945 0, 917 - 0, 973 < 0, 01 Cut-off point Se (%) Sp (%) J index 5, 57 89, 0 93, 2 0, 82 5, 70 88, 4 93, 2 0, 82 5, 79 88, 4 93, 8 0, 82 5, 88 88, 4 94, 5 0, 83 6, 00 88, 4 95, 2 0, 84 6, 13 87, 7 95, 2 0, 83 6, 27 87, 0 95, 9 0, 83 - The ROC curve of H-FABP is above the standard curve, the area under the curve AUC = 0.945; 95% CI: 0.917 - 0.973; p < 0.01.