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Table 2 Characteristics of participants with positive/non-conclusive or negative test (n= 850)

From: Diagnostic characteristics and prognoses of primary-care patients referred for clinical exercise testing: a prospective observational study

  Exercise test
Positive/non-conclusive* Negative** p
Patients n=197 (23.2%) n=653 (76.8%)  
Age, mean (SD) 66 (11) 62 (12) <0.001
Men 106 (53.8%) 325 (49.8%) 0.321
Smoker, current or previous 108 (54.8%) 342 (52.8%) 0.615
Past medical history    
  Myocardial infarction 25 (12.8%) 49 (7.6%) 0.024
  Revascularization 30 (15.2%) 44 (6.8%) <0.001
  Stroke or TIA 16 (8.1%) 35 (5.4%) 0.171
  Previous cardiovascular event 47 (24.0%) 88 (13.7%) 0.001
Present conditions    
  Hypertension, medication for 120 (61.5%) 332 (51.4%) 0.013
  Diabetes mellitus, treatment for 24 (12.2%) 69 (10.7%) 0.541
  Dyslipidaemia, medication for 78 (40.0%) 157 (24.4%) <0.001
  Congestive heart failure, medication for 30 (15.6%) 70 (11.1%) 0.094
  Claudication 14 (7.4%) 33 (5.2%) 0.247
Chest pain symptoms    
  Ever have chest pain or discomfort in the chest 138 (72.3%) 436 (69.0%) 0.390
  Chest pain walking at an ordinary pace on the level 50 (26.0%) 69 (10.8%) <0.001
  Chest pain walking uphill or in a hurry 134 (69.1%) 264 (42.0%) <0.001
Angina diagnosis according to patient’s opinion 80 (43.2%) 126 (20.9%) <0.001
Systolic blood pressure (mm Hg), mean (SD) 151 (21) 146 (19) 0.001
Resting ECG    
  Normal resting ECG 132 (67.0%) 507 (77.6%) 0.003
  Atrial fibrillation 14 (7.1%) 22 (3.4%) 0.026
  Atrioventricular block 4 (2.0%) 19 (2.9%) 0.507
  Signs of myocardial scarring 17 (8.6%) 55 (8.4%) 0.927
  Pathologic ST-T segment on resting ECG 42 (21.3%) 62 (9.5%) <0.001
  1. *Positive exercise test: angina symptoms and depression of ST segment >0.1 mV during the test. Non-conclusive test: angina or ST depression. **Negative test: neither angina nor ST depression. SD: standard deviation. TIA: transitory ischaemic attack. ECG: electrocardiogram. Cardiovascular event: myocardial infarction, revascularization, stroke, or TIA. Myocardial scarring: pathologic Q-wave or altered R-wave progression compared to previous ECG.