Table 1.

Patient characteristics by urinary cystatin B level

Low cystatin B (n = 30)High cystatin B (n = 17)P
Mean (range) age (y)73.7 (60-89)74.5 (46-96)0.8322*
Gender, n (%)
    Male23 (77)9 (53)
    Female7 (23)8 (47)0.1144
Previous TCC bladder, n (%)23 (77)16 (94)0.2276
Prior intravesical (BCG) treatment, n (%)4 (13)5 (29)0.2516
Tumor grade, n (%)
    112 (40)2 (12)
    212 (40)5 (29)
    36 (20)10 (59)0.0179
Tumor stage, n (%)
    pTa28 (93.3)10 (59)
    pT11 (3.3)3 (18)
    pT21 (3.3)4 (23)0.0152
Multifocality present tumor, n (%)15 (50)10 (59)0.7617
BCG treatment of present tumor, n (%)3 (10)2 (12)1.00
Mean (SD) follow-up (mo) of patients without recurrence or progression
    Recurrence analysis24.9 (11.3)25.6 (6.7)0.8962*
    Progression analysis32.1 (10.5)28.6 (9.0)0.9084*
  • NOTE: Column percentages represent proportions of patients within low cystatin B (n = 30) and high cystatin B (n = 17) categories.

  • * t test.

  • Fisher's exact test.

  • χ2 test for differences across grade and stage.