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Table 1 Clinicopathologic characteristics of 1183 patients with gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs)

From: Clinicopathologic characteristics and prognosis of gastroenteropancreatic neuroendocrine neoplasms: a multicenter study in South China

Variable No. of cases (%)
Gender
 Female 468 (39.6)
 Male 715 (60.4)
Age (years)
 ≤50 564 (47.7)
 >50 619 (52.3)
Tumor functionality
 Nonfunctional 979 (82.8)
 Functional 204 (17.2)
Tumor location
 Stomach 245 (20.7)
 Pancreas 332 (28.1)
 Small intestine 85 (7.2)
 Appendix 40 (3.4)
 Colon 39 (3.3)
 Rectum 442 (37.4)
Tumor size (cm)
 <2.0 616 (52.1)
 2.0–4.0 272 (23.0)
 >4.0 295 (24.9)
Grade (WHO 2010 classification)
 G1 608 (51.4)
 G2 270 (22.8)
 G3 305 (25.8)
Tumor type
 NET 881 (74.5)
 NEC 261 (22.1)
 MANEC 41 (3.5)
T category (ENETS criteria)
 T1 510 (43.1)
 T2 220 (18.6)
 T3 314 (26.5)
 T4 139 (11.7)
N category (ENETS criteria)
 N0 846 (71.5)
 N1 337 (28.5)
M category (ENETS criteria)
 M0 925 (78.2)
 M1 258 (21.8)
TNM stage (ENETS criteria)
 I 479 (40.5)
 II 246 (20.8)
 III 200 (16.9)
 IV 258 (21.8)
Surgery
 Yes 1016 (85.9)
 No 167 (14.1)
  1. WHO World Health Organization, NET neuroendocrine tumor, NEC neuroendocrine carcinoma, MANEC mixed adenoneuroendocrine carcinoma, ENETS European Neuroendocrine Tumor Society