| Characteristics | HIF-1α expression (n = 99) | p Value* | |
| Low (%) | High (%) | ||
| Gender: | |||
| Male | 21 (50.0) | 21 (50.0) | |
| Female | 23 (40.4) | 34 (59.6) | 0.340 |
| Age: | |||
| ⩽67 age | 20 (38.5) | 32 (61.5) | |
| >67 age | 24 (51.1) | 23 (48.9) | 0.208 |
| Location: | |||
| Urinary bladder | 15 (62.5) | 9 (37.5) | |
| Kidney | 17 (40.5) | 25 (59.5) | |
| Ureter | 12 (36.4) | 21 (63.6) | 0.116 |
| Tumour size: | |||
| <3 cm | 31 (60.8) | 20 (39.2) | |
| ⩾3 cm | 13 (27.1) | 35 (72.9) | 0.001 |
| Histologic grade: | |||
| Low | 10 (71.4) | 4 (28.6) | |
| High | 34 (40.0) | 51 (60.0) | 0.028 |
| Tumour invasiveness: | |||
| Present | 22 (33.3) | 44 (66.7) | |
| Absent | 22 (66.7) | 11 (33.3) | 0.002 |
| Recurrence: | |||
| Yes | 6 (23.1) | 20 (76.9) | |
| No | 38 (52.1) | 35 (47.9) | 0.011 |
| Metastasis: | |||
| Yes | 4 (30.8) | 9 (69.2) | |
| No | 40 (46.5) | 46 (53.5) | 0.287 |
*p Value was determined by χ2 test. p<0.05 indicates statistical significance.