Table 1. Patient demographics and types of neck dissection. Value presented as number (%) unless stated otherwise. All patients underwent dissection of levels II-IV, with levels I and V dissected according to results of staging from clinical and radiological examination Table 1. Patient demographics and types of neck dissection. Value presented as number (%) unless stated otherwise. All patients underwent dissection of levels II-IV, with levels I and V dissected according to results of staging from clinical and radiological examination Table 1. Patient demographics and types of neck dissection. Value presented as number (%) unless stated otherwise. All patients underwent dissection of levels II-IV, with levels I and V dissected according to results of staging from clinical and radiological examination Table 1. Patient demographics and types of neck dissection. Value presented as number (%) unless stated otherwise. All patients underwent dissection of levels II-IV, with levels I and V dissected according to results of staging from clinical and radiological examination
Number of patients Number of patients 61
Age, mean (range) (n=61) Age, mean (range) (n=61) 59.8 (32-93)
Sex (n=61)  %
Male 47 (77)
Female 14 (23)
Smoking history (n=61) Smoking history (n=61)
<10pack years 37 (61)
Current smoker or >10 pack years 24 (39)
Imaging used for clinical staging (n=61)
MRI 50
CT 9
PET 2
Neck dissections (n=63) Neck dissections (n=63)
Ipsilateral 61
Contralateral 2
Levels dissected (n=63) Levels dissected (n=63)
I-IV 4 (6)
II-IV 52 (83)
II-V 7 (11)