Table 6. Comparison and validation of different cutoff points for Nr.

Authors (ref.)	Cutoff points	AIC	C-index	P
Melis et al [5]	0,0.30,0.60	892.1	0.701	< 0.05
Deng et al [8]	0,0.13,0.80	900.3	0.698	< 0.01
Zeng et al [16]	0,0.50,0.80	912.4	0.674	< 0.05
Wang et al [10]	0,0.067, 0.30,0.70	886.9	0.712	< 0.05
Lee et al [23]	0,0.05, 0.10,0.20, 0.30	998.8	0.675	< 0.05
Zhang et al [18]	0,0.10,0.25	1012.7	0.602	< 0.01
Wu et al [6]	0,0.20,0.50	862.5	0.772	< 0.05
Kutlu et al [9]	0,0.20,0.50	862.5	0.772	< 0.05
Zhou et al [11]	0,0.20,0.50	862.5	0.772	< 0.05
Wong et al [17]	0,0.20,0.50	862.5	0.772	< 0.05