Table 1 Depth (T category) of bladder carcinoma and duration of smokeless tobacco use

1–10 years

11–20 years

21–30 years

31–40 years

Total

T1 (pTa/pT1)

1

2

1

4

T2

3

3

6

T3

2

6

1

9

T4

2

2

Total

1

7

12

1

21