Table 1. Characteristics of patients.

Characteristics	Value
Total No. of Cases	44
Age, y
Mean ± SD	57.455 ± 15.205
Range	30–85
Sex, n (%)
Male	33 (75.0)
Female	11 (25.0)
Primary tumor site, n (%)
Oral tongue	37 (84.1)
Mouth floor	3 (6.8)
Gingiva	3 (6.8)
Buccal mucosa	1 (2.3)
T-status, n (%)
Late T2	38 (86.4)
T3	6 (13.6)
Depth of invasion, mm
Mean ± SD	10.341 ± 8.029
Range	1.0–41.0
Lymph node metastasis (SLN, non-SLN, or nodal recurrence), n (%)
Non-metastatic cases	25 (56.8)
Metastatic cases	19 (43.2)
Treatment outcome
Recurrence, n (%)
Primary	3 (6.8)
Regional	3 (6.8)
Status, n (%)
No evidence of disease	40 (90.9)
Died of disease	4 (9.1)
Died from other cause	0 (0.0)

SLN, sentinel lymph node; SD, standard deviation.