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Table 4 distribution of tumor stage and grade among cases.

From: Correlation between human papillomavirus infection and bladder transitional cell carcinoma

Stage or grade/HPV infection

Stage

Grade

 

Tis

Ta

T1

T2a

T2b

T3

T4

I

II

III

infected

1 (4.8%)

5 (23.8%)

12 (57.1%)

3 (14.3%)

0

0

0

8 (38.1%)

10 (47.6%)

3 (14.3%)

Non infected

0

20 (52.6%)

12 (31.6%)

5 (13.1%)

1 (2.6%)

0

0

13 (34.2%)

19 (50%)

6 (15.8%)