Table 1

Sensitivity, specificity, positive and negative predictive value, and accuracy across a range of CK and TnT values

CK (IU)	Sens (%)	Spec (%)	PPV (%)	NPV (%)	Acc (%)	TnT (ng/ml)	Sens (%)	Spec (%)	PPV (%)	NPV (%)	Acc (%)
Acc, accuracy; CK, creatine kinase; NPV, negative predictive value; PPV, positive predictive value; Sens, sensitivity; Spec, specificity; TnT, troponin T.
100	97	55	46	98	67	0.05	99	76	61	99	82
120	96	65	52	98	74	0.1	98	81	67	99	86
140	95	72	57	97	78	0.15	96	84	70	98	87
160	94	77	61	97	82	0.2	95	86	73	98	89
180	92	80	64	96	83	0.25	93	88	74	97	89
200	91	83	68	96	85	0.3	89	90	77	96	90
220	90	85	71	96	87	0.35	89	91	79	96	90
240	88	88	74	95	88	0.4	87	91	79	95	90
260	86	90	77	94	89	0.45	86	92	81	94	90
280	84	92	80	94	90	0.5	86	92	81	94	90
300	83	92	81	93	90	0.55	83	93	83	93	90
320	82	93	83	93	90	0.6	81	94	83	93	90
340	79	94	84	92	90	0.65	80	94	84	92	90
360	78	94	84	91	90	0.7	77	95	86	91	90
380	76	95	85	91	90	0.75	77	95	87	91	90
400	75	95	86	91	89	0.8	76	96	87	91	90
420	73	95	86	90	89	0.85	75	96	88	91	90
440	72	95	86	90	89	0.9	73	96	88	90	90
460	69	96	86	89	88	0.95	72	96	88	90	89
480	68	96	87	88	88	1	71	97	89	90	89
500	65	96	87	88	87	1.25	63	97	90	87	88
						1.5	60	98	91	86	87
						1.75	55	98	93	85	86
						2	46	99	93	82	84