Table 6.

Sites of the first treatment failure between IFI and ENI groups.

	IFI (n=102)	ENI (n=165)	p-value
First failure-no. of patients (%)
IFF alone	3(2.9)	6(3.6)	.760
OFF alone	6(5.9)	1(0.6)	.009
DM alone	11(10.8)	16(9.7)	.775
IFF+OFF	0(0)	1(0.6)	.431
IFF+DM	0(0)	0(0)	–
OFF+DM	3(2.9)	2(1.2)	.311
IFF+OFF+DM	0(0)	3(1.8)	.171
All IFF	3(2.9)	10(6.1)	.250
All OFF	9(8.8)	7(4.2)	.125
All DM	14(13.7)	21(12.7)	.814

FF, in-field failure; OFF, out-of-field failure; DM, distant metastasis; ALL IFF, all in-field failure; ALL OFF, all out-of-field failure; ALL DM, all distant metastasis.