Table 1.
Sample characteristics*
| Characteristic | Stage I, low risk | Stage I, intermediate risk | Stage I, high fisk | Stage IIA† /stage II NOS | Stage II | All |
|---|---|---|---|---|---|---|
| Number of patients | 40 121 | 10747 | 1897 | 3857 | 1550 | 58172 |
| Mean age, years (SD) | 58.9 (10.9) | 74.8 (7.5) | 68.9 (11.3) | 63.8 (13.2) | 62.7 (13.1) | 62.6 (12.3) |
| Race, No. (%) | ||||||
| White | 34 972 (87.2) | 9911 (92.2) | 1723 (90.8) | 3310 (85.8) | 1302 (84.0) | 51 218 (88.0) |
| Black | 1798 (4.5) | 392 (3.7) | 75 (4.0) | 253 (6.6) | 122 (7.9) | 2640 (4.6) |
| Other | 3351 (8.3) | 444 (4.1) | 99 (5.2) | 294 (7.6) | 126 (8.1) | 4314 (7.4) |
| 2009 FIGO stage I, No. (%) | ||||||
| IA | 38 637 (96.3) | 6223 (57.9) | — | — | — | 44 851 (77.1) |
| IB | 1484 (3.7) | 4524 (42.1) | 1897(100) | — | — | 7911 (13.6) |
| Grade, No. (%) | ||||||
| 1 | 26 320 (65.6) | 1200 (11.2) | — | 1227 (31.8) | 439 (28.3) | 29 186 (50.2) |
| 2 | 10 617 (26.5) | 7642 (71.1) | — | 1737 (45.0) | 646 (41.7) | 20 642 (35.5) |
| 3 | 3184 (7.9) | 1905 (17.7) | 1897 | 893 (23.2) | 465 (30.0) | 8344 (14.3) |
| LND, No. (%) | ||||||
| No LND | 23 062 (57.5) | 4853 (45.2) | 517 (27.2) | 1663 (43.2) | 451 (29.1) | 30 546 (52.8) |
| LND, 1–10 nodes | 7478 (18.6) | 2640 (24.5) | 536 (28.3) | 916 (23.7) | 419 (27.0) | 11 989 (20.6) |
| LND, >10 nodes | 9581 (23.9) | 3254 (30.3) | 844 (44.5) | 1278 (33.1) | 680 (43.9) | 15 637 (26.9) |
| Any LND | 17 059 (42.5) | 5894 (54.8) | 1380 (72.8) | 2194 (56.8) | 1099 (70.9) | 27 626 (47.5) |
| Adjuvant RT, No. (%) | ||||||
| No RT | 35 549 (88.6) | 7212 (67.1) | 680 (35.8) | 1737 (45.0) | 497 (32.1) | 45 675 (78.5) |
| VB | 1487 (3.7) | 693 (6.4) | 135 (7.1) | 383 (9.9) | 156 (10.0) | 2854 (4.9) |
| WPRT, no VB | 2123 (5.3) | 2052 (19.1) | 747 (39.4) | 936 (24.3) | 446 (28.8) | 6304 (10.8) |
| WPRT+VB | 962 (2.4) | 790 (7.4) | 335 (17.7) | 801 (20.8) | 451 (29.1) | 3339 (5.8) |
| Higher SES, No. (%) | 19 613 (48.9) | 5025 (46.8) | 893 (47.1) | 1829 (47.4) | 701 (45.2) | 28 061 (48.2) |
| Married, No. (%) | 23 910 (59.6) | 4666 (43.4) | 881 (46.4) | 1926 (49.9) | 752 (48.5) | 32135 (55.2) |
* FIGO = Fédération Internationale de Gynécologie Obstétrique; LND = lymphadenectomy; NOS = not otherwise specified; RT = radiation therapy; SD = standard deviation; SES = socioeconomic status; VB = vaginal brachytherapy; WPRT = whole pelvic radiation therapy; — = data unavailable/not applicable.
† 1988 FIGO staging system.