Characteristics | ICND (Control group) | BCND (Test group) | p value |
---|---|---|---|
No. of patients | 296 | 285 | / |
Age [years; ±SD (range)] | 43.2 ± 11.7 | 43.8 ± 11.5 | 0.544 |
Male/female | 70/226 | 72/213 | 0.939 |
Pathological tumor size [mm; ±SD (range)] | 8.3 ± 5.0 | 8.8 ± 5.5 | 0.356 |
Operative time [min; ±SD (range)] | 50.5 ± 10.4 | 60.4 ± 11.5 | 0.006 |
Pathological T classification (<T3/T3) | 157/139 | 167/118 | 0.178 |
Pathological N classification(p N0 / p N1a) | 134/162 | 96/189 | 0.004 |
Tumor side/contralateral side (+/+) | / | 61 | / |
Tumor side/contralateral side (+/−) | / | 124 | / |
Tumor side/contralateral side (−/+) | / | 4 | / |
Tumor side/contralateral side (−/−) | / | 96 | / |
Unifocal/Multifocal | 242/54 | 245/40 | 0.169 |
Transient hypocalcemia | 40/296 | 47/285 | 0.315 |
Transient laryngeal nerve palsy | 13/296 | 25/285 | 0.033 |
Definitive laryngeal nerve palsy | 2/296 | 2/285 | 1.000 |
Post-operation hemorrhage | 6/296 | 5/285 | 1.000 |
Removed lymph nodes [±SD (range)] | 8.5 ± 5.8 | 12.5 ± 6.5 | 0.002 |
Metastasized lymph nodes [±SD (range)] | 2.6 ± 1.5 | 2.88 ± 1.7 | 0.857 |
PG numbers of auto-transplantation | 226/592 | 377/855 | 0.025 |
The ratio of IONM | 90/296 | 85/285 | 0.879 |
PTH (pre-operation) | 4.28 ± 1.50 | 4.18 ± .1.62 | 0.945 |
CA (pre-operation) | 2.34 + 0.16 | 2.32 ± 0.10 | 0.243 |
PTH (Postoperative 1 Day) | 2.83 ± 1.37 | 2.55 ± 1.21 | 0.010 |
CA (Postoperative 1 Day) | 2.26 ± 0.10 | 2.26 ± 0.09 | 0.556 |
PTH (Postoperative 6 months) | 3.93 ± 1.93 | 3.95 ± 1.99 | 0.915 |
CA (Postoperative 6 months) | 2.37 ± 0.93 | 2.36 ± 0.95 | 0.949 |
Number of tumor recurrence | 0/296 | 1/285 | 0.491 |