Table 1 Baseline characteristics of the population according to facial nerve resection
REFCOR cohort: | No resection | FN resection | SMD |
|---|---|---|---|
n | 122 | 178 | |
Pretreatment facial palsy (%) | 10 ( 8.3) | 77 (46.4) | 0.946 |
Age at diagnosis (mean (SD)) | 57.18 (18.65) | 64.16 (14.05) | 0.423 |
Male sex (%) | 67 (54.9) | 114 (64.0) | 0.187 |
Tumoral size (mm) | 28.34 (18.02) | 32.34 (15.56) | 0.238 |
Log(Tumoral size) | 3.17 (0.65) | 3.35 (0.55) | 0.311 |
Extraparenchymal extension (%) | 38 (32.8) | 78 (55.3) | 0.467 |
Skin or bone invasion (%) | 10 ( 8.6) | 20 (14.2) | 0.176 |
cN+ (%) | 34 (27.9) | 68 (38.2) | 0.221 |
M1 (%) | 5 ( 4.1) | 15 ( 8.4) | 0.179 |
Grade (%) | 0.676 | ||
I | 44 (38.6) | 24 (14.1) | |
II | 19 (16.7) | 18 (10.6) | |
III | 51 (44.7) | 128 (75.3) | |
Deep lobe tumor (%) | 35 (28.7) | 47 (28.1) | 0.012 |
Adenoid cystic carcinoma (%) | 18 (14.8) | 19 (10.7) | 0.123 |
Total parotidectomy (%) | 101 (82.8) | 166 (94.3) | 0.368 |
Neck dissection (%) | 88 (74.6) | 161 (94.2) | 0.560 |
Radiotherapy (%) | 86 (72.3) | 150 (85.2) | 0.321 |
Chemotherapy (%) | 16 (13.6) | 48 (27.9) | 0.360 |
Surgical margin (%) | 0.236 | ||
Negative | 23 (20.0) | 43 (26.1) | |
Positive | 63 (54.8) | 95 (57.6) | |
Close | 29 (25.2) | 27 (16.4) | |
Vander Poorten score (mean (SD)) | 5.15 (1.17) | 5.98 (1.01) | 0.763 |
Prognostic index (%) | 0.859 | ||
1 | 13 (15.7) | 2 ( 1.9) | |
2 | 26 (31.3) | 13 (12.1) | |
3 | 20 (24.1) | 26 (24.3) | |
4 | 24 (28.9) | 66 (61.7) |