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Table 4 Comparison between the results of CA in patients with positive EE to myocardial ischemia: Group 1 (G1) versus Group 2 (G2).

From: Chronotropic incompetence and a higher frequency of myocardial ischemia in exercise echocardiography

CA G1 n = 490 (12%) G2 n = 3552(88%) P Total
Normal 14(6.6%) 72 (11.2%) 0.057 86
Coronary Crooked, Fine and with Parietals Injuries 02 (0.9%) 11 (1.7%) 0.43 13
Myocardium Bridges or Coronary Spasm 04 (1.9%) 11 (1.7%) 0.86 15
Coronary Stenosis 30–50% 12 (5.7%) 63 (9.8%) 0.068 75
Coronary Stenosis > 50% 173 (82%) 458 (71%) 0.0018 631
Ejection fraction < 50% 6 (2.8%) 28 (4.3%) 0.33 34
Total 211 (100%) 644 (100%)   855
  1. G1 group: patients who failed to achieve 85% of the maximal age-predicted HR;
  2. G2 group: patients who were able to achieve 85% of the maximal age-predicted HR.