TABLE 2.
Characteristics of 1310 patientsa
| Characteristic | Value |
|---|---|
| Sex, n (%) | |
| Male | 691 (53) |
| Female | 619 (47) |
| Race, n (%) | |
| African American | 134 (10) |
| White | 1095 (84) |
| Other | 78 (6) |
| Unknown | 3 (.2) |
| Median (SD) age at diagnosis (y) | 59 (15) |
| ICD-O-3 groupings, n (%) | |
| Islet cell | 1117 (85) |
| Insulinoma | 49 (4) |
| Glucagonoma | 29 (2) |
| Gastrinoma | 73 (6) |
| VIPoma | 16 (1) |
| Mixed histology | 26 (2) |
| SEER stage, n (%) | |
| Localized | 179 (14) |
| Regional | 295 (23) |
| Distant | 711 (54) |
| Unknown | 125 (10) |
| Location of primary tumor, n (%) | |
| Head | 379 (29) |
| Body | 103 (8) |
| Tail | 278 (21) |
| Overlapping | 108 (8) |
| Unknown | 442 (34) |
| Year of diagnosis, n (%) | |
| 1973–1988 | 482 (37) |
| 1989–2003 | 828 (63) |
a Cases selected from SEER 17 database by ICD-O-3 histology codes 8150–8155, 8240–8245, and pancreatic primary site. Cases designated as poorly differentiated or anaplastic by grade were excluded.