Table 1 Demographic and Pathological Characteristics of the Study Population (2000–2014)
From: Non-functional pancreatic neuroendocrine tumours: emerging trends in incidence and mortality
Variable | Total | 2000–2004 | 2005–2009 | 2010–2014 |
|---|---|---|---|---|
No. of patients | 4766 | 833 | 1289 | 2644 |
Age of diagnosis | 59 | 57 | 58 | 60 |
Gender | ||||
 Women | 2192 (46.0) | 391 (46.9) | 606 (47.0) | 1195 (45.2) |
 Men | 2574 (54.0) | 442 (53.1) | 683 (53.0) | 1449 (54.8) |
Ethnicity | ||||
 White | 3747 (78.6) | 679 (81.5) | 1045 (81.1) | 2023 (76.5) |
 Black | 583 (12.2) | 95 (11.4) | 150 (11.6) | 338 (12.8) |
 Other†| 408 (8.6) | 56 (6.7) | 89 (6.9) | 263 (10.0) |
 Unknow | 28 (0.6) | 3 (0.4) | 5 (0.4) | 20 (0.8) |
SEER historic stage | ||||
 Localized | 1365 (28.6) | 115 (13.8) | 259 (20.1) | 991 (37.5) |
 Regional | 829 (17.4) | 148 (17.8) | 260 (20.2) | 421 (15.9) |
 Distant | 2408 (50.5) | 512 (61.5) | 723 (56.1) | 1173 (44.4) |
 Unstage | 164 (3.4) | 58 (7.0) | 47 (3.7) | 59 (2.2) |
Grade | ||||
 Well differentiated | 1696 (35.6) | 107 (12.9) | 365 (28.3) | 1224 (46.3) |
 Moderately differentiate | 538 (11.3) | 79 (9.5) | 115 (8.9) | 344 (13.0) |
 Poorly differentiated | 309 (6.5) | 71 (8.5) | 86 (6.7) | 152 (5.8) |
 Undifferentaited | 88 (1.85) | 27 (3.2) | 14 (1.1) | 47 (1.8) |
 Unknow | 2135 (44.8) | 549 (65.9) | 709 (55.0) | 877 (33.2) |