Table 1 Patient characteristics in the training and validation groups
Training group n = 603 | Validation group n = 150 | p | |
|---|---|---|---|
Operative time(min) | 120(99, 135) | 120(95,138.5) | 0.694 |
Sex | 0.532 | ||
male | 139(23.1%) | 31(20.7%) | |
female | 464(76.9%) | 119(79.3%) | |
Age(y) | 48(37,55) | 50(39,56) | 0.157 |
BMI (kg/cm2) | 23.72 ± 3.34 | 23.40 ± 3.47 | 0.162 |
Thyroid volume(mL) | 11.02(8.92,14.65) | 10.38(8.27,14.04) | 0.145 |
Blood flow of thyroid | 0.423 | ||
rich | 169(28.0%) | 47(31.3%) | |
normal | 434(72.0%) | 103(68.7%) | |
Tumor size(cm) | 0.88(0.57,1.40) | 0.90(0.66,1.30) | 0.420 |
Tumor location | 0.687 | ||
upper | 102(16.9%) | 23(15.3%) | |
middle | 322(53.4%) | 86(57.3%) | |
lower | 179(29.7%) | 41(27.4%) | |
Close to the capsule | 0.257 | ||
yes | 264(43.6%) | 58(38.7%) | |
no | 339(56.4%) | 92(61.3%) | |
Lesion | 0.656 | ||
unifocal | 158(26.2%) | 42(28.0%) | |
multifocal | 445(73.8%) | 108(72.0%) | |
FNA | 0.283 | ||
yes | 246(40.8%) | 54(36.0%) | |
no | 357(59.2%) | 96(64.0%) | |
FT3(pg/mL) | 3.35(3.10,3.62) | 3.23(3.02,3.55) | 0.016 |
FT4(ng/dL) | 1.17(1.07,1.29) | 1.19(1.06,1.30) | 0.374 |
TSH(uIU/mL) | 1.67(1.16,2.41) | 1.69(1.08,2.30) | 0.231 |
Tg-Ab(U/mL) | 20.40(15.00,73.25) | 22.10(15.00,54.43) | 0.674 |
TPO-Ab(U/mL) | 38.50(28.00,57.40) | 42.70(30.80,116.93) | 0.067 |