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Multivariate NTCP model:
use of logistic regression for fitting different covariates (in addition to dose):
Parameters for clinical outcome: Salivary glands
Beetz I et al. Development of NTCP models for head and neck cancer patients treated with
three-dimensional conformal radiotherapy for xerostomia and sticky saliva: The role of
dosimetric and clinical factors. Radiother. Oncol. Volume 105, Issue 1, Pages 86–93.
X
e
NTCP
β
ˆ
1
1
−
+
=
nn
x
x x
X
β
β
β
β
β
+ + + + =
22
11
0
ˆ
NTCP
X
β
ˆ