Table 1
Clinical and biochemical characteristics in subjects with a positive and negative exercise tolerance test
| Positive ETT | Negative ETT | p Value | |
|---|---|---|---|
| Values are given as median (range). | |||
| ETT, exercise tolerance test. | |||
| Number of subjects | 29 | 34 | |
| Number of men (%) | 21 (72.4%) | 19 (55%) | |
| Age (years) | 64 (39–79) | 52 (31–68) | 0.0001 |
| Nitrotyrosine pre-ETT (μmol/l) | 0.20 (<0.2–1.2) | 0.20 (<0.2–1.3) | 0.3125 |
| Nitrotyrosine post-ETT (μmol/l) | 0.20 (<0.2–4.2) | 0.20 (<0.2–1.6) | 0.084 |
| Time exercised (minutes) | 6.0 (2–10) | 9.0 (1–12) | 0.0001 |
| Maximum heart rate achieved | 85% (59–108%) | 100% (78–130%) | 0.0001 |
