569 / 1173
0
6
12
18
24
30
36
42
48
54
60
Time after treatment (months)
0
20
40
60
80
100
Loco-regional control (%)
(heavy)
59%
65%
0
6
12
18
24
30
36
42
48
54
60
Time after treatment (months)
0
20
40
60
80
100
Overall survival (%)
45%
39%
(moderate)
(no smoking)
66%
52%
Smoking and treatment outcome
Radiotherapy treatment of Head and Neck Carcinoma (233 pts)
DAHANCA
(no smoking)
(moderate)
(heavy)
p=0.002
p=0.008