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Number and grade of tumor by treatment
| Number of tumor | ||||||
|---|---|---|---|---|---|---|
| Tumor stage | Ta | T1 | Tis | |||
| Number of tumor | <=3 | >3 | <=3 | >3 | <=3 | >3 |
| Celecoxib | 35 | 4 | 13 | 2 | 2 | 1 |
| Placebo | 33 | 2 | 22 | 2 | 2 | 0 |
| Grade of tumor | ||||||
|---|---|---|---|---|---|---|
| Tumor stage | ||||||
| Tumor grade | <=2 | >2 | <=2 | >2 | <=2 | >2 |
| Celecoxib | 29 | 13 | 6 | 13 | 3 | 1 |
| Placebo | 25 | 11 | 10 | 14 | 1 | 1 |
* Ta = tumor stage is Ta; T1 = tumor stage is T1, T1+Ta, or T1+Tis; Tis = tumor stage is Tis or Tis+Ta
