Table 3 Univariate and multivariate analysis of risk factors for later cancer detection
Factor | No. of patients | Univariate hazard ratio (95 % confidence interval) | P-value | Multivariate hazard ratio (95 % confidence interval) | P-value |
|---|---|---|---|---|---|
Age, year | |||||
continuous | 65 | 1.07 (0.99-1.18) | 0.0807 | ||
Gross hematuria after first examination | |||||
Yes | 13 | 11.3 (2.15-82.8) | 0.0048 | 7.84 (1.32-61.7) | 0.0239 |
No | 50 | 1 | 1 | ||
Cytology after first examination | |||||
Positive/suspicious/atypical | 9 | 6.6 (1.18-37.0) | 0.0335 | 4.58 (0.689-31.3) | 0.112 |
Negative | 47 | 1 | 1 | ||
Concurrent or previous history of bladder cancer | |||||
Yes | 22 | 3.09 (0.6-22.4) | |||
No | 43 | 1 | 0.177 | ||
Smoking history | |||||
Yes | 32 | 4.08 (0.66-78.1) | |||
No | 26 | 1 | 0.142 | ||
Sex | 5-year cancer-free survival rate, % | ||||
Male | 40 | 73 | |||
Female | 25 | 100 | 0.0316 | ||