Table 1: Risk factors for various histologic patterns of CAB.

TCCAB

SCCAB

Risk factors

Smoking

4 (33.3%)

0

Schistosoma infestation

0

3 (50%)

Snuff

1 (8.3%)

0

Recurrent bladder stones

0

3 (50%)

Recurrence

1 (STAGE II)

0

Progression

0

0

Stages

0a

1

0

0is

0

0

I

7

1

II

2

5

III

0

0

IV

2

0

Av. age at diagnosis

61.2 years

31.3 years