Table 2. Population and Cancer Data
Data n (%) X2 P
Gender 1.545 0.214
Male 91
Female 2
Age(y) 1.111 0.292
<60 50
≥60 43
Cigarette smoking 0.233 0.629
Ever 82
Never 11
Alcohol drinking 1.304 0.253
> 50 g/d 84
< 50 g/d 9
Tumour differentiation degree 3.909 0.142
Well 9
Moderately 29
Poorly 55
Initial location of cancer in the pyriform sinus 2.612 0.271
Medial wall 56
Lateral wall 18
lateral and medial walls 19
laryngeal function preservation 61 1.661 0.197
AJCC stage 7.017 0.071
5
10
24
54