Table 4 Comparisons of clinicopathological features between ≤ 5 pN1 and > 5 pN1 of PTC patients
Variable | Total (n = 748) | ≤ 5 pN1 (n = 707) | > 5 pN1 (n = 41) | χ2 | p |
|---|---|---|---|---|---|
Age(years) | 4.24 | 0.12 | |||
≤ 40 | 246 | 227 (32.1%) | 19 (46.3%) | ||
> 40 and ≤ 55 | 423 | 406 (57.4%) | 17 (41.5%) | ||
> 55 | 79 | 74 (10.5%) | 5 (12.2%) | ||
Gender | 0.90 | 0.34 | |||
Male | 108 | 100 (14.1%) | 8 (19.5%) | ||
Female | 640 | 607 (85.9%) | 33 (80.5%) | ||
HT | 0.00 | 1.00 | |||
No | 667 | 630 (89.1%) | 37 (90.2%) | ||
Yes | 81 | 77 (10.9%) | 4 (9.8%) | ||
Nodular goiters | 0.52 | 0.47 | |||
No | 397 | 373 (52.8%) | 24 (58.5%) | ||
Yes | 351 | 334 (47.2%) | 17 (41.5%) | ||
Multifocality | 8.92 | 0.003* | |||
No | 607 | 581 (82.2%) | 26 (63.4%) | ||
Yes | 141 | 126 (17.8%) | 15 (36.6%) | ||
Bilaterality | 3.10 | 0.08 | |||
No | 462 | 442 (62.5%) | 20 (48.8%) | ||
Yes | 286 | 265 (37.5%) | 21 (51.2%) | ||
Primary tumor size | 41.56 | < 0.001* | |||
≤ 1 cm | 540 | 526 (74.4%) | 14 (34.1%) | ||
> 1 and ≤ 2 cm | 170 | 152 (21.5%) | 18 (43.9%) | ||
> 2 cm | 38 | 29 (4.1%) | 9 (22.0%) | ||
Capsule contact | 18.97 | < 0.001* | |||
No | 275 | 273 (38.6%) | 2 (4.9%) | ||
Yes | 473 | 434 (61.4%) | 39 (95.1%) | ||
ETE | 45.57 | < 0.001* | |||
No | 505 | 497 (70.3%) | 8 (19.5%) | ||
Yes | 243 | 210 (29.7%) | 33 (80.5%) | ||
C-TIRADS | 213.6 | < 0.001* | |||
Category 4a | 69 | 68 (9.5%) | 1 (2.4%) | ||
Category 4b | 153 | 150 (21.2%) | 3 (7.3%) | ||
Category 4c | 466 | 457 (64.6%) | 9 (22.0%) | ||
Category 5 | 60 | 32 (4.5%) | 28 (68.3%) | ||
SWE imaging | |||||
Emax | 748 | 55.05 ± 14.31 | 61.80 ± 15.89 | -2.92 | 0.004* |
Emean | 748 | 44.09 ± 11.85 | 46.68 ± 11.38 | -1.36 | 0.17 |
ER | 748 | 1.86 ± 0.46 | 2.14 ± 0.54 | -3.68 | < 0.001* |
Central LNM | 108.24 | < 0.001* | |||
No | 534 | 534 (75.5%) | 0 (0.0%) | ||
Yes | 214 | 173 (24.5%) | 41 (100.0%) |