Table 1 Prognostic performance comparison.

Overall survival		C-Index	Events at 6 years		Events at 10 years		Events at 14 years
Overall survival		C-Index	Brier score	AUC	Brier score	AUC	Brier score	AUC
FIM cohort n = 439	PV-HRM+age	0.83	0.057	0.855	0.080	0.907	0.093	0.892
	IWG-PV	0.71	0.064	0.722	0.098	0.808	0.114	0.839
	MIPSS-PV	0.74	0.065	0.778	0.095	0.804	0.117	0.795
Grinfeld et al. n = 312	PV-HRM+age	0.81	0.018	0.796	0.038	0.846	0.057	0.878
	IWG-PV	0.74	0.019	0.787	0.041	0.834	0.065	0.874
	MIPSS-PV	0.75	0.017	0.820	0.039	0.735	0.064	0.736
St Louis, Paris n = 365	PV-HRM+age	0.68	0.009	0.509	0.018	0.625	0.029	0.765
	IWG-PV	0.60	0.013	0.469	0.027	0.657	0.041	0.847
	MIPSS-PV	0.66	0.008	0.562	0.018	0.634	0.028	0.754
Hematologic transformations		C-Index	Events at 6 years		Events at 10 years		Events at 14 years
Hematologic transformations		C-Index	Brier score	AUC	Brier score	AUC	Brier score	AUC
FIM cohort n = 439	PV-HRM+age	0.75	0.019	0.799	0.039	0.794	0.062	0.746
	IWG-PV	0.63	0.021	0.643	0.041	0.710	0.066	0.707
	MIPSS-PV	0.61	0.020	0.646	0.042	0.636	0.066	0.689
Grinfeld et al. n = 312	PV-HRM+age	0.54	0.006	0.488	0.014	0.747	0.027	0.7376
	IWG-PV	0.61	0.007	0.470	0.014	0.744	0.030	0.727
	MIPSS-PV	0.53	0.006	0.408	0.014	0.594	0.028	0.610
St Louis, Paris n = 365	PV-HRM+age	0.66	0.001	0.735	0.009	0.666	0.021	0.664
	IWG-PV	0.60	0.002	0.737	0.012	0.547	0.027	0.677
	MIPSS-PV	0.59	0.001	0.609	0.009	0.588	0.021	0.625

C-index and AUC evaluated the performance of the model and Brier score reflected the accuracy of prediction (i.e. the rate of error). The best values for each cohort and event were in bold.

Quick links

Search