From: Risk factors affecting prognosis in metachronous liver metastases from WHO classification G1 and G2 gastroenteropancreatic neuroendocrine tumors after initial R0 surgical resection
Characteristics
Frequency
%
Age
Median
54
< 60
70
64.8%
≥60
38
35.2%
Gender
Male
65
60.2%
Female
43
39.8%
Origin
Pancreas
55
50.9%
GI tract
53
49.1%
Foregut
21
19.4%
Midgut
8
7.4%
Hindgut
24
22.2%
Primary tumor Gradea
G1
16
14.8%
G2
92
85.2%