Table 2.

Response to immunotherapy based on the prediction model

Survival prediction	Low	High	χ2	P
For training cohort (n = 130)	n = 101	n = 29
Best overall response-no. (%)			12.134	0.002
Partial response (PR)	33 (32.7)	5 (17.2)
Stable disease (SD)	57 (56.4)	13 (44.8)
Progressive disease (PD)	11 (10.9)	11 (37.9)
For validation cohort (n = 63)	n = 46	n = 17
Best overall response-no. (%)			7.603	0.022
Partial response (PR)	15 (32.6)	2 (11.8)
Stable disease (SD)	27 (58.7)	9 (52.9)
Progressive disease (PD)	4 (8.7)	6 (35.3)