Table 1 Clinical characteristics of the patients
Patient characteristics | All patients (n = 201) | Patients with \( \dot{\rm{V}} \)O2 overshoot (n = 10) | Patients without \( \dot{\rm{V}} \)O2 overshoot (n = 191) | p value |
|---|---|---|---|---|
Male/female gender, n | 188/13 | 9/1 | 179/12 | NS |
Age (year) | 64.2 ± 9.3 | 61.7 ± 10.5 | 64.4 ± 9.3 | NS |
Height (cm) | 164.7 ± 6.8 | 160.8 ± 5.2 | 164.9 ± 6.8 | NS |
Weight (kg) | 64.7 ± 10.1 | 60.8 ± 6.7 | 64.9 ± 10.3 | NS |
Medication | ||||
Nitrates | 137 (68.2) | 7 (70.0) | 130 (68.1) | NS |
Calcium-channel blockers | 93 (46.3) | 2 (20.0) | 91 (47.6) | NS |
β-blockers | 92 (45.8) | 5 (50.0) | 87 (45.5) | NS |
Angiotensin receptor blockers | 50 (24.9) | 4 (40.0) | 46 (24.1) | NS |
Angiotensin-converting enzyme inhibitors | 48 (23.9) | 3 (30.0) | 45 (23.6) | NS |
Diuretics | 32 (15.9) | 6 (60.0) | 26 (13.6) | 0.001 |
Digitalis | 10 (5.0) | 2 (20.0) | 8 (4.2) | NS |
Coronary risk factors | ||||
Hypertension | 110 (54.7) | 6 (60.0) | 104 (54.5) | NS |
Dyslipidemia | 109 (54.2) | 6 (60.0) | 103 (53.9) | NS |
Diabetes mellitus | 59 (29.4) | 4 (40.0) | 55 (28.8) | NS |
Current or history of smoking | 135 (67.2) | 6 (60.0) | 129 (67.5) | NS |