Table 1. Characteristics for patients with T0–T4.
| Covariate | level | T stages | ||||
|---|---|---|---|---|---|---|
| T0 (n = 84) | T1 (n = 28067) | T2 (n = 7727) | T3 (n = 9375) | T4 (n=2107) | ||
| Age | 55.12 ± 17.8457 (42.5, 66.5) | 50.28 ± 14.4751 (40, 61) | 47.16 ± 16.1246 (35, 58) | 50.31 ± 16.5950 (38, 62) | 61.33 ± 17.6463 (50,74) | |
| Survival months | 22.30 ± 14.70 | 21.52 ± 14.09 | 21.55 ± 13.94 | 21.50 ± 13.95 | 16.30 ± 14.56 | |
| All-cause mortality | No | 75 (89.29%) | 27632 (98.45%) | 7577 (98.06%) | 9131 (97.40%) | 1377 (65.35%) |
| Yes | 9 (10.71%) | 435 (1.55%) | 150 (1.94%) | 244 (2.60%) | 730 (34.65%) | |
| Thyroid carcinoma- specific death | No | 75 (96.15%) | 27632 (99.91%) | 7577 (99.61%) | 9131 (99.07%) | 1377 (71.02%) |
| Yes | 3 (3.85%) | 25 (0.09%) | 30 (0.39%) | 86 (0.93%) | 562 (28.98%) | |
| Race | white | 69 (82.14%) | 22981 (81.88%) | 6215 (80.43%) | 7379 (78.71%) | 1671 (79.31%) |
| black | 9 (10.71%) | 1872 (6.67%) | 576 (7.45%) | 607 (6.47%) | 128 (6.07%) | |
| other | 6 (7.14%) | 3214 (11.45%) | 936 (12.11%) | 1389 (14.82%) | 308 (14.62%) | |
| Grade | Well-differentiated | 5 (62.50%) | 6122 (86.42%) | 1754 (79.80%) | 1894 (68.82%) | 219 (20.58%) |
| Moderate | 2 (25.00%) | 875 (12.35%) | 373 (6.97%) | 614 (22.31%) | 116 (10.90%) | |
| Poorly differentiated | 1 (12.50%) | 87 (1.23%) | 71 (3.23%) | 244 (8.87%) | 153 (27.52%) | |
| undifferentiated | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | 576 (54.14%) | |
| N-stage | N0 | 18 (22.78%) | 24110 (86.17%) | 6028 (78.48%) | 5432 (58.19%) | 721 (36.27%) |
| N1 | 61 (77.22%) | 3870 (13.83%) | 1653 (21.52%) | 3903 (41.81%) | 1267 (63.73%) | |
| M-stage | M0 | 60 (71.43%) | 27992 (99.73%) | 7643 (98.91%) | 9137 (97.46%) | 1612 (76.51%) |
| M1 | 24 (28.57%) | 75 (0.27%) | 84 (1.09%) | 238 (2.54%) | 495 (23.49%) | |
| Radiation | None or refused | 45 (55.56%) | 18232 (66.50%) | 2836 (37.83%) | 2751 (30.35%) | 699 (34.13%) |
| Radiation Beam | 4 (4.94%) | 108 (0.39%) | 86 (1.15%) | 155 (1.71%) | 461 (22.51%) | |
| Radioisotopes | 31 (38.27%) | 8940 (32.61%) | 4498 (60.00%) | 6037 (66.61%) | 845 (41.26%) | |
| Radioactive implants | 1 (1.23%) | 122 (0.44%) | 70 (0.93%) | 94 (1.04%) | 14 (0.68%) | |
| Radiation beam +isotopes/implants | 0 (0.00%) | 16 (0.06) | 7 (0.09%) | 26 (0.29%) | 29 (1.42%) | |
| Surgery | Recommended but not Performed | 2 (2.38%) | 66 (0.24%) | 34 (0.44%) | 25 (0.27%) | 28 (1.34%) |
| Performed | 55 (65.48%) | 27621 (98.80%) | 7513 (97.57%) | 9269 (99.03%) | 1644 (78.47%) | |
| Not recommended | 27 (32.14%) | 269 (0.96%) | 153 (1.99%) | 66 (0.71%) | 423 (20.19%) | |