Table 2.
Correlation of tumor grade with COX-2 immunostaining. High grade of bladder carcinomas exhibited strong COX-2 cytoplasmic expression. (Spearman correlation coefficient r = 0.24, P v a l u e < .001).
| Tumor grade | Negative | Weak | Moderate | Strong | Total (%) |
|---|---|---|---|---|---|
| Normal | 6 (20.7%) | 14 (48.3%) | 4 (13.8%) | 5 (17.2%) | 29 (100.0%) |
| Grade I | 3 (11.1%) | 8 (29.6%) | 9 (33.3%) | 7 (25.9%) | 27 (100.0%) |
| Grade II | 1 (3.3%) | 5 (16.7%) | 16 (53.3%) | 8 (26.7%) | 30 (100.0%) |
| Grade III | 5 (9.3%) | 15 (27.8%) | 23 (43.4%) | 11 (18.9%) | 54 (100.0%) |
|
| |||||
| Total (%) | 15 (10.7%) | 42 (30.0%) | 52 (37.1%) | 31 (21.1%) | 140 (100.0%) |