ESTRO 2024 - Abstract Book

S1267

Clinical - Head & neck

ESTRO 2024

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

4.831 (1.182-19.741)

7.373 (1.725-31.519)

pN2c

0.028

0.007

4.359 (3.206-5.928)

3.249 (2.227-4.741)

pN3b

<0.001

<0.001

Absent

Ref

Ref

ECE

<0.001

<0.001

3.158 (2.430-4.103)

3.671 (2.144-4.613)

Present

The 3-year LRC for younger and older cohorts was 53.7 % and 56.5 %, respectively (p = 0.300). The 5-year LRC for younger and older cohorts was 47.6 % and 46.5 %, respectively (p = 0.460). The 3-year OS for younger and older cohorts was 59.4 % and 62.7 %, respectively (p = 0.397). The 5-year OS for younger and older cohorts was 53.9 % and 54.1 %, respectively (p = 0.413). The median duration of LRC in older and younger cohort was 55.7 months and 49.05 months (p=0.863). The median duration of OS in older and younger cohorts was 72.4 months and 75.4 months respectively (p=0.831).

Comparison of LRC and OS between the two arms is shown in Kaplan Meier Curves. (Figure1&2).