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Table 1 Comparison of the clinical findings in patients of the Group 1 (G1) and patients of the Group 2 (G2).

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

VARIABLES G1 n = 490 (12%) G2 n = 3552 (88%) P
Age (Years) 60.1 ± 11.2 56 ± 11.2 < 0.0001
Gender (M/F) 222 (45%)/268 (55%) 1678 (47%)/1874 (53%) 0.421
BMI (Kg/m2) 28.2 ± 5.0 27.3 ± 4.5 0.914
Asymptomatic 101 (21%) 1191 (33%) < 0.0001
Typical Angina 88 (18%) 261 (7%) < 0.0001
Atypical Angina 301 (61%) 2100 (59%) 0.330
Systemic Hypertension 349 (71%) 1973 (55%) < 0.0001
Dyslipidemia 376 (77%) 2468 (70%) 0.001
Cigarette Smoking 28 (6%) 181 (5%) 0.562
Diabetes Mellitus 79 (16%) 356 (10%) < 0.0001
Family History of CAD 308 (63%) 1912 (54%) < 0.0001
Previous Myocardial Infarction 43 (9%) 146 (4%) < 0.0001
Coronary Bypass Surgery 61 (12%) 190 (5%) < 0.0001
PCI 52 (11%) 191 (5%) < 0.0001
Beta Blockers 167 (34%) 627 (18%) < 0.0001
Calcium Channel Antagonists 45 (9%) 190 (5%) 0.001
Nitrates 49 (10%) 123 (3%) < 0.0001
LBBB 17 (4%) 117 (3%) 0.833
  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.
  3. BMI = Body Mass Index;
  4. CAD = Coronary Arterial Disease
  5. PCI = Percutaneous Coronary Intervention
  6. LBBB = Left Bundle Branch Block