ESTRO 2024 - Abstract Book

S1266

Clinical - Head & neck

ESTRO 2024

Table1: Univariate and multivariate analysis for prognostic factors affecting (OS)

(1.953-5.188)

(0.440-2.724)

Depth

of

1.078 (1.055-1.101)

Continuous

<0.001

invasion (DOI)

≤5mm

Ref

Ref

0.624

0.849

1.096 (0.760-1.581)

1.016 (0.621-1.663)

>5-10mm

DOI (group)

2.041 (1.455-2.864)

1.237 (0.614-2.493)

>10mm

<0.001

0.552

0.874 (0.833-0.916)

Margin

Continuous

<0.001

Free

Ref

Ref

0.026

0.068

1.397 (1.041-1.874)

1.330 (0.979-1.805)

Close

Margin (group)

2.796 (1.960-3.988)

1.995 (1.369-2.908)

Positive

<0.001

<0.001

Absent

Ref

Ref

Lymphovascular invasion (LVI)

<0.001

0.874

1.708 (1.322-2.206)

0.976 (0.719-1.324)

Present

Absent

Ref

Ref

Perineural invasion (PNI)

<0.001

0.001

2.118 (1.641-2.735)

1.647 (1.234-2.198)

Present

pN0

Ref

Ref

0.216

1.252 (0.846-1.854)

1.303 (0.857-1.981)

pN1

0.261

pNodal Stage

2.197 (1.308-3.688)

1.778 (1.032-3.062)

pN2a

0.003

0.038

2.293 (1.453-3.617)

2.135 (1.306-3.492)

pN2b

<0.001

0.002