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Table 6 Cardiovascular events within 6 months according to observed and predicted outcome of exercise tests

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

Type of cardiovascular event Observed outcome of exercise test Predicted outcome of exercise test*
Positive n=55 Non-conclusive n=142 Negative n=653 Non-assessable n=15 Positive/non-conclusive n=761 Negative/non-assessable n=104 Total n=865
n (%) n (%) n (%) n (%) n (%) n (%) n (%)
To GP for angina symptoms 13 (23.6%) 12 (8.5%) 11 (1.7%) 1 (6.7%) 35 (4.6%) 2 (1.9%) 37 (4.3%)
Hospitalized for unstable angina 10 (18.2%) 10 (7.0%) 2 (0.3%) 0 22 (2.9%) 0 (0%) 22 (2.5%)
STEMI/NSTEMI 1 (1.8%) 3 (2.1%) 0 0 4 (0.5%) 0 (0%) 4 (0.5%)
Revascularization 19 (34.5%) 12 (8.5%) 4 (0.6%) 0 35 (4.6%) 0 (0%) 35 (4.0%)
Cardiovascular death 1 (1.8%) 2 (1.4%) 0 0 3 (0.4%) 0 (0%) 3 (0.3%)
Patients with any event (%) 29 (52.7%) 26 (18.3%) 13 (2.0%) 1 (6.7%) 67 (8.8%) 2 (1.9%) 69 (8.0%)
  1. GP: general practitioner. STEMI: ST-segment elevation myocardial infarction. NSTEMI: non-ST-segment elevation myocardial infarction.
  2. Revascularization: decision on revascularization within six months. Cardiovascular death: cause of death was sudden cardiac death, myocardial infarction, or congestive heart failure. 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. *Predicted outcome, classification cut off >0.1.