Table 1.
Demographic and clinicopathologic variables of the whole cohort grouped by lymph node status.
| Charteristics | Total (N = 1,271) No (%) | CLNM- (N = 619) | CLNM+(N = 652) | P-value |
|---|---|---|---|---|
| Gender | <0.001 | |||
| Male | 339 (26.67) | 132 (38.94) | 207 (61.06) | |
| Female | 932 (73.33) | 487 (52.25) | 445 (47.75) | |
| Age (years) | 41.38 ± 11.09 | 43.18 ± 11.39 | 39.68 ± 10.51 | <0.001 |
| ≤55 | 1,140 (89.69) | 534 (46.84) | 606 (53.16) | <0.001 |
| >55 | 131 (10.31) | 85 (64.89) | 46 (35.11) | |
| Tumor size (mm) | 9.92 ± 5.69 | 8.53 ± 4.27 | 11.24 ± 6.34 | <0.001 |
| ≤10 mm | 897 (70.57) | 491(54.74) | 406 (45.26) | <0.001 |
| 10–20 mm | 305 (24.00) | 115 (37.70) | 190 (62.30) | |
| >20 mm | 69 (5.43) | 13 (18.84) | 56 (81.16) | |
| Bilateral | <0.001 | |||
| No | 1,071 (84.3) | 544 (50.79) | 527 (49.21) | |
| Yes | 200 (15.7) | 75 (37.50) | 125 (62.50) | |
| Tumor location | 0.127 | |||
| Upper | 304 (23.92) | 152 (50.00) | 152 (50.00) | |
| Middle | 545 (42.88) | 280 (51.38) | 265 (48.62) | |
| Inferior | 380 (29.90) | 171 (45.00) | 209 (55.00) | |
| Isthmus | 42 (3.30) | 16 (38.10) | 26 (61.90) | |
| Multifocality | <0.001 | |||
| Absence | 1,002 (78.77) | 514 (51.30) | 488 (48.70) | |
| Presence | 269 (21.23) | 105 (39.03) | 164 (60.97) | |
| CLT | 0.573 | |||
| No | 988 (77.73) | 477 (48.28) | 511 (51.72) | |
| Yes | 283 (22.27) | 142 (50.18) | 141 (49.82) | |
| DLN status | <0.001 | |||
| Negative | 1,051 (82.69) | 589 (56.04) | 462 (43.96) | |
| Positive | 220 (17.31) | 30 (13.64) | 190 (86.36) |
Continuous data are shown as mean ± standard deviation.
–, negative; +, positive; CLNM, central lymph node metastasis; CLT, chronic lymphocytic thyroiditis; DLN, Delphian lymph node.