Characteristics of all Surveillance, Epidemiology and End Results (SEER) participants, by their stage of pancreas cancer
| Stage IA N=409 | Stage IB N=757 | Stage IIA N=1907 | Stage IIB N=5192 | Stage III N=1305 | Stage IV N=3561 | |
|---|---|---|---|---|---|---|
| Age at diagnosis—median (range) | 66 (30, 88) | 66 (31, 89) | 68 (31, 93) | 66 (30, 95) | 67 (31, 94) | 67 (30, 95) |
| Age at diagnosis—mean (SD) | 64.8 (11.1) | 64.9 (12) | 67.1 (10.6) | 65.7 (10.9) | 66.1 (11.5) | 66.1 (12) |
| Race—number (%) | ||||||
| Black | 37 (9) | 88 (12) | 177 (9) | 462 (9) | 177 (14) | 494 (14) |
| Other | 29 (7) | 69 (9) | 162 (8) | 331 (6) | 116 (9) | 271 (8) |
| White | 343 (84) | 600 (79) | 1568 (82) | 4399 (85) | 1012 (78) | 2796 (79) |
| Sex—number (%) | ||||||
| Female | 201 (49) | 395 (52) | 947 (50) | 2537 (49) | 654 (50) | 1646 (46) |
| Male | 208 (51) | 362 (48) | 960 (50) | 2655 (51) | 651 (50) | 1915 (54) |
| Location—number (%) | ||||||
| Body | 61 (15) | 124 (16) | 147 (8) | 272 (5) | 234 (18) | 702 (20) |
| Head | 248 (61) | 441 (58) | 1469 (77) | 4421 (85) | 979 (75) | 1944 (55) |
| Tail | 100 (24) | 192 (25) | 291 (15) | 499 (10) | 92 (7) | 915 (26) |
| Grade—no. (%) | ||||||
| G1 | 174 (43) | 208 (27) | 254 (13) | 564 (11) | 197 (15) | 415 (12) |
| G2 | 172 (42) | 359 (47) | 982 (51) | 2582 (50) | 517 (40) | 1182 (33) |
| G3 | 56 (14) | 178 (24) | 629 (33) | 1966 (38) | 563 (43) | 1826 (51) |
| G4 | 7 (2) | 12 (2) | 42 (2) | 80 (2) | 28 (2) | 138 (4) |
| Size (cm)—median (range) | 1.5 (0.5, 2) | 3.2 (2.1, 15) | 3 (0.7, 14) | 3.3 (0.5, 15) | 4 (0.5, 14) | 4 (0.5, 15) |
| Size (cm)—number (%) | ||||||
| ≤2 cm | 409 (100) | 0 (0) | 345 (18) | 735 (14) | 93 (7) | 234 (7) |
| 2–4 cm | 0 (0) | 535 (71) | 1095 (57) | 3124 (60) | 594 (46) | 1554 (44) |
| >4 cm | 0 (0) | 222 (29) | 467 (24) | 1333 (26) | 618 (47) | 1773 (50) |
| T stage—number (%) | ||||||
| T1 | 409 (100) | 0 (0) | 0 (0) | 172 (3) | 0 (0) | 111 (3) |
| T2 | 0 (0) | 757 (100) | 0 (0) | 624 (12) | 0 (0) | 1070 (30) |
| T3 | 0 (0) | 0 (0) | 1907 (100) | 4396 (85) | 0 (0) | 1514 (43) |
| T4 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1305 (100) | 866 (24) |
| N stage—number (%) | ||||||
| N0 | 409 (100) | 757 (100) | 1907 (100) | 0 (0) | 751 (58) | 1956 (55) |
| N1 | 0 (0) | 0 (0) | 0 (0) | 5192 (100) | 554 (42) | 1605 (45) |