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Table 2 Comparison of symptom-limited exercise stress testing according to the presence of vasospastic angina (VA)

From: Blunted heart rate recovery is associated with coronary artery spasm in patients with suspected vasospastic angina

  Patients without VA (n = 676) Patients with VA (n = 300) p-value
Left ventricular ejection fraction, % 68.1 ± 7.8 68.4 ± 6.6 0.556
Exercise time, min 8.8 ± 2.2 8.7 ± 2.3 0.358
Metabolic equivalents 9.8 ± 4.3 9.4 ± 2.3 0.082
Rest heart rate, bpm 70.5 ± 12.7 67.8 ± 11.6 0.002
Max heart rate, bpm 152.1 ± 22.4 145.5 ± 21.2 <0.001
HRR, bpm 30.5 ± 22.2 24.6 ± 18.0 <0.001
Blunted HRR 180 (26.6%) 118 (39.3%) <0.001
Rest systolic BP, mmHg 125.9 ± 13.2 126.9 ± 12.2 0.243
Rest diastolic BP, mmHg 78.0 ± 8.9 78.6 ± 9.1 0.394
Max systolic BP, mmHg 170.0 ± 17.5 169.1 ± 17.3 0.474
Max diastolic BP, mmHg 81.8 ± 10.3 80.8 ± 10.3 0.168
  1. All values are means ± SDs for continuous variables or frequencies (percentages) for categorical variables
  2. HRR heart rate recovery, BP blood pressure