Table 1.

Clinicopathological parameters

Clinicopathological parameters	Cases (172)
<60	94
≥60	78
Sex
Male	112
Female	60
Smoking history
Smoker	95
Non-smoker	77
Differentiation
Low	67
Moderate	72
High	33
Pathology
Squamous	72
Non-squamous	100
Tumor status
T1	38
T2	112
T3	22
Node status
N0	106
N1	31
N2	35