Clinical characteristics and results of exercise testing in patients with and without catheterisation
| With catheterisation (n=48) | Without catheterisation (n=24) | p Value | |
|---|---|---|---|
| Values are mean (SD) or n (%). | |||
| HR, heart rate; SBP, systolic blood pressure. | |||
| Age (years) | 66 (7) | 70 (6) | |
| Women | 11 (23%) | 7 (29%) | 0.769 |
| Treatment | |||
| β Blockers | 15 (31%) | 10 (42%) | 0.381 |
| Nitrates | 36 (75%) | 13 (54%) | 0.073 |
| Calcium channel blockers | 22 (46%) | 8 (33%) | 0.310 |
| Triple therapy | 14 (29%) | 1 (4.2%) | 0.013 |
| Stress test | |||
| Duration (min) | 5.61 (2.0) | 5.67 (2.0) | 0.900 |
| Watts | 50 (37) | 45.6 (40) | 0.654 |
| METs | 4.5 (1.6) | 4.7 (2) | 0.672 |
| Peak HR (beats/min) | 102 (20) | 106 (25) | 0.500 |
| % predicted HR | 68 (17) | 69 (21) | 0.840 |
| SBP (mm Hg) | 154 (27) | 164 (33) | 0.204 |
| HR × SBP | 15 730 (459) | 17 614 (614) | 0.0001 |
| Angina | 20 (41.6%) | 1 (4.2 %) | 0.001 |
| + Dipyridamole | 22 (45.8%) | 5 (20.8%) | 0.182 |