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Table 2 Patient group distribution and cardiovascular events after 1 month and 1 year

From: Risk stratification of patients in an emergency department chest pain unit: prognostic value of exercise treadmill testing using the Duke score

Group Patients, no. (%) Events, no. of patients (%)
1 month 1 year
ETT 599 25 (4.2) 32 (5.3)
Low risk 454 (75.8) 3 (0.7) 7 (1.5)
Moderate risk 142 (23.7) 19 (13.4) 22 (15.5)
High risk 3 (0.5) 3 (100) 3 (100)
Moderate/high risk 145 (24.2) 22 (15.2) 25 (17.2)
No-ETT 201 30 (14.9) 36 (17.9)
Alternative test 88 8 (9.1) 11 (12.5)
Dobutamine echo 58 (65.9) 7 (12.1) 9 (15.5)
Sestamibi imaging 26 (29.5) 1 (3.9) 2 (7.7)
Atrial pacing 4 (4.6) 0 0
No test—reason 113 22 (19.5) 25 (22.1)
Recurrent chest pain 28 (24.8) 5 (17.9) 5 (17.9)
ECG change 16 (14.2) 3 (18.8) 5 (31.3)
Increased enzyme levels 11 (9.7) 8 (72.7) 8 (72.7)
Admitted to hospital 32 (28.3) 5 (15.6) 6 (18.8)
Discharged 26 (23.0) 1 (3.8) 1 (3.8)
Total 800 55 (6.9) 68 (8.5)
  1. ECG electrocardiographic, echo echocardiography, ETT exercise treadmill test