Table 2.

Log-rank test for equality of survivor functions

		Events observed	Events expected	P value
Site	Pan-NET	6	6	1.00
	SI-NET	15	15
Sex	Female	11	11.64	0.77
	Male	10	9.36
Micrometastasis	No	4	9.20	0.02
	Yes	17	11.80
Tumor stage at diagnosis	III	3	1.68	0.28
	IV	18	19.32
WHO grade (liver lesion)	1	5	7.17	<0.01
	2	6	9.11
	3	9	3.72
Margin status	R0	8	14.06	<0.01
	R1/2	13	6.94
Systemic treatment	Yes	13	16.63	0.04
	No	8	4.37