754-755 / 1676
754-755 / 1676
Example
•
Risk of grade 3+ Radiation pneumonitis
•
D
50
=54.1 Gy for smokers
•
exp(
d
i
Y
i
)=0.79 (95% CI: 0.4-0.98) for former smokers
•
exp(
d
i
Y
i
)=0.65 (95% CI: 0.27-0.89) for non-smokers
•
Is smoking protective or risk factor?
From: Tucker et al, IJROBP
72
p. 568 (2008)
