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Table 7 Relative risk of cardiac death, non-fatal myocardial infarction or arrhythmia over the following six months

From: Which diagnostic tests are most useful in a chest pain unit protocol?

Test

Event rate:

positive test

Event rate:

negative test

Relative risk

Serial ECG & ST monitoring N = 690

1/41

15/649

1.06 (0.14 to 7.79)

Initial CK-MB(mass) N = 687

0/39

16/648

-

Delayed CK-MB(mass) N = 601

1/44

13/557

0.97 (0.13 to 7.28)

Delta CK-MB(mass) N = 601

0/31

14/570

-

Any positive CK-MB(mass) N = 601

1/59

15/628

0.71 (0.09 to 5.28)

Troponin T > = 0.1 ng/ml N = 686

1/33

15/673

1.36 (0.18 to 9.98)

Troponin T > = 0.03 ng/ml N = 686

2/54

14/632

1.67 (0.39 to 7.17)

Exercise treadmill test N = 422

2/37

3/385

6.63 (1.14 to 38.50)