Table 1. Patient demographics (n = 24).

Variables	N
Total	24 (100%)
Gender
Male	22 (91.7%)
Female	2 (8.3%)
Age, y
<60	7
>60	17
Anatomic site of primary
Oral Cavity	15
Oropharyngeal	9
Tumour Size
T1	3
T2	10
T3	7
T4	4
Nodal spread
N0	12
N1	0
N2a-c	12
Distant metastases
M0	24
M1	0
HPV status
HPV-positive	12
HPV-negative	12
CTC status
CTC-positive	13 (Range from 1–12 CTCs/10 ml whole blood)
CTC-negative	11