Table 3.

Total points and estimated risk for OS and PFS with the novel scoring system

Groups	Total points	Incidence (%)	HR (95% CI)	P
OS
Low risk	0	92.3	1 (reference)	–
Moderate risk	1	79.0	2.84 (1.34–6.00)	0.006
Moderate high risk	2	66.7	5.29 (2.43–11.51)	<0.001
High risk	3	55.6	9.69 (4.04–23.25)	<0.001
PFS
Low risk	0	74.4	1 (reference)	–
Moderate risk	1	57.2	1.79 (1.15–2.78)	0.009
Moderate high risk	2	47.0	2.71 (1.66–4.43)	<0.001
High risk	3	37.0	3.79 (2.09–6.90)	<0.001

P values were calculated with the Cox proportional hazards model using 2-sided Wald test. HR, hazard ratio; OS, overall survival; PFS; progression-free survival.