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Table 1 Baseline Clinicopathologic Characteristics

From: Validation and modification of staging Systems for Poorly Differentiated Pancreatic Neuroendocrine Carcinoma

CharacteristicN = 568
No.%
Age, years
  < 6023140.7
  ≥ 6033759.3
Sex
 Male33559.0
 Female23341.0
Race
 White44378.0
 Black6711.8
 Other5810.2
Year of diagnosis
 1988–19976010.6
 1998–200718732.9
 2008–201532156.5
Location
 Head23641.5
 Body and tail17931.5
 Other*15327.0
ENETS stage
 I71.2
 II346.0
  IIA152.6
  IIB193.4
 III11319.9
  IIIA254.4
  IIIB8815.5
 IV41472.9
8th AJCC stage
 I356.2
  IA81.4
  IB274.8
 II7813.7
  IIA274.8
  IIB518.9
 III417.2
 IV41472.9
7th AJCC stage
 I335.8
  IA81.4
  IB254.4
 II10218.0
  IIA234.1
  IIB7913.9
 III193.3
 IV41472.9
Modified 7th stage
 I508.8
  IA91.6
  IB417.2
 II8515.0
 III193.3
 IV41472.9
  1. *Other location included overlapping lesion of pancreas and other specified parts of pancreas