Table 5. Univariate Cox analysis of the three prognostic scores examined with 95%CI intervals for R² calculated by boostrap resampling (in brackets).

	HR	R2	p
IPSS		0.066 (0.012–0.166)	<0.0001
Low risk	0.068 (0.0214–0.220)
Intermediate I	0.207 (0.0803–0.532)
Intermediate II	0.304 (0.0947–0.978)
High risk	1
IPSS-R		0.080 (0.0106–0.110)	<0.0001
Very low risk	0.0238 (0.0028–0.250)
Low risk	0.0553 (0.0163–0.188)
Intermediate	0.2891 (0.1033–0.809)
High risk	0.3115 (0.135–0.0.938)
Very high risk	1
WPSS		0.050 (0.004–0.126)	<0.0001
Very low risk	0.00005 (0–0.0001)
Low risk	0.064 (0.017–0.248)
Intermediate	0.165 (0.056–0.499)
High risk	0.416 (0.141–1.23)
Very high risk	1