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Table 2 Differences in the indices between the non-MSIMI and MSIMI groups before and after mental stress

From: Association between quality of life and mental stress-induced myocardial ischaemia in high-risk patients after coronary revascularization

  Non-MSIMI MSIMI Statistics P
Number 100 105(51.2)   
Rest status
 Rest TPD (%) 4.9 ± 11.0 4.12 ± 9.4 t = 0.551 0.582
 Rest EDV (ml) 92.7 ± 44.1 79.2 ± 30.1 t = 2.577 0.011
 Rest ESV (ml) 40.4 ± 34.8 30.1 ± 21.7 t = 2.517 0.013
 Rest LVEF (%) 60.0 ± 12.4 64.8 ± 12.8 t = 2.707 0.007
 Rest SBP (mmHg) 128.7 ± 16.7 131.4 ± 18.2 t = 1.083 0.280
 Rest DBP (mmHg) 80.1 ± 11.0 78.2 ± 10.3 t = 1.262 0.208
 Rest HR (bpm) 71.1 ± 10.8 69.8 ± 12.7 t = 0.791 0.430
Mental stress status
 Stress TPD (%) 4.8 ± 11.0 7.7 ± 9.8 t = 1.988 0.048
 Stress EDV (ml) 91.3 ± 42.2 82.4 ± 29.2 t = 1.746 0.082
 Stress ESV (ml) 38.2 ± 34.9 31.7 ± 21.6 t = 1.588 0.114
 Stress LVEF (%) 62.4 ± 13.2 64.1 ± 12.0 t = 0.950 0.343
 Stress max SBP (mmHg) 149.7 ± 18.7 150.4 ± 20.0 t = 0.273 0.785
 Stress max DBP (mmHg) 90.2 ± 12.3 88.1 ± 11.0 t = 1.293 0.198
 Stress max HR (bpm) 76.7 ± 12.6 74.1 ± 13.7 t = 1.362 0.175
 RPP 11,518.4 ± 2709.1 11,150.0 ± 2528.3 t = 1.007 0.315
  1. MSIMI: mental stress-induced myocardial ischaemia; TPD: total perfusion deficit; EDV: end-diastolic volume; ESV: end-systolic volume; LVEF: left ventricular ejection fraction; SBP: systolic blood pressure; DBP: diastolic blood pressure; HR: heart rate; RPP: rate–pressure product. P values < 0.05 are shown in bold