Table 1 Patient characteristics
| Â | Prospective pimonidazole study | Retrospective carbogen patients |
|---|---|---|
Age (years) | 70 (49–87) | 73 (38–88) |
Median(range) | Â | Â |
Stage | ||
 T1 | 3 | 6 |
 T2 | 5 | 19 |
 T3 | 12 | 38 |
 T4 | 1 | 1 |
Grade | ||
 G1 | 1 | 2 |
 G2 | 10 | 17 |
 G3 | 10 | 55 |
Total | 21 | 64 |
