Variables | SMG preservation | SMG excision | p |
---|---|---|---|
N = 31 | N = 106 | ||
Age | 55.4 (38–65) | 60.5 (35–78) | 0.034 |
Sex | |||
Male | 20 (64.5%) | 83 (78.3%) | |
Female | 11 (35.5%) | 23 (21.7%) | 0.118 |
Smoker | |||
Yes | 19 (61.3%) | 79 (74.5%) | |
No | 12 (38.7%) | 27 (25.5%) | 0.151 |
Drinker | |||
Yes | 15 (48.4%) | 57 (53.8%) | |
No | 16 (51.6%) | 49 (46.2%) | 0.597 |
Clinical tumor stage | |||
T1 | 17 (54.8%) | 45 (42.5%) | |
T2 | 14 (45.2%) | 61 (57.5%) | 0.223 |
Pathologic tumor stage | |||
T1 | 15 (48.4%) | 40 (37.7%) | |
T2 | 16 (51.6%) | 66 (62.3%) | 0.287 |
Perineural invasion | |||
Positive | 4 (12.9%) | 10 (9.4%) | |
Negative | 27 (87.1%) | 96 (90.6%) | 0.736 |
Lymphovascular invasion | |||
Positive | 3 (9.7%) | 10 (9.4%) | |
Negative | 28 (90.3%) | 96 (90.6%) | 1.000 |
Tumor differentiation | |||
Well | 10 (32.3%) | 30 (28.3%) | |
Moderate | 14 (45.2%) | 64 (60.4%) | |
Poor | 7 (22.6%) | 12 (11.3%) | 0.199 |
Cervical lymph node stage | |||
N0 | 25 (80.6%) | 88 (83.0%) | |
N+ | 6 (19.4%) | 18 (17.0%) | 0.760 |
Transient MMN injury* | 2 (6.5%) | 10 (9.4%) | 0.734 |
Postoperative radiotherapy | 4 (12.9%) | 23 (21.7%) | 0.319 |