Table 2.

Tumor responses.

Tumor response, n (%)	All patients (n = 133)	Training set (n = 93)	Validation set (n = 40)
Complete response (CR)	1 (0.8)	1 (1.1)	0
Partial response (PR)	30 (22.6)	19 (20.4)	11 (27.5)
Stable disease (SD)	65 (48.9)	46 (49.5)	19 (47.5)
Progressive disease (PD)	37 (27.8)	27 (29.0)	10 (25.0)
ORR (CR + PR)*	31 (23.4)	20 (21.5)	11 (27.5)
DCR (CR + PR + SD)#	96 (72.2)	66 (71.0)	30 (75.0)

DCR, disease control rate; ORR, objective response rate.

^*Pearson χ² = 0.562, P = 0.453 (ORR comparison between the validation and training sets).

^#Pearson χ² = 0.226, P = 0.634 (DCR comparison between the validation and training sets).