Predictive event  factors Frequency No. HR P ORs (95% CIs)
Sex          
Male 28(93.3) 13(46.4) 1.750 0.598 0.22-13.99
Female 2(6.7) 2(100)
Age 13(43.3) 7(53.8)      
< 60     0.933 0.873 0.34-2.18
≥ 60 17(56.6) 8(47.1)
Multiplicity          
Simple 19 (63.3) 11(57.9) 4.632 0.148 0.58-37.03
Multiple 11(36.7) 4(36.4)
Tumor size          
<3cm 14(46.7) 6(42.9) 1.094 0.894 0.29-4.07
≥3cm 16(53.3) 9(56.3)
Stage          
pTa 14(46.7) 7(50) 1.429 0.595 0.38-5.32
pT1 16(53.3) 8(50)
Grade          
Low 23(76.7) 13(56.5) 2.435 0.401 0.30-19.46
High 7(23.3) 2(28.6)
ICAM-1 expression          
Low 19(63.3) 4(21) 0.024 0.194 0.0-6.70
High 11(36.6) 11(100)
Abbreviations: HR: Hazard Ratio; 95%CI: Confidence Interval; p<0.05is significant.
Table 2: Univariate Cox regression analysis to predict time to recurrence following end of treatment: data are expressed as number and percentage of patients.