Variable

Hazard Ratio

95% Confidence Interval

p-value

Lower

Upper

Developed HNSCC-SPT

0.49

0.31

0.78

0.002

Local Recurrence

3.23

2.45

4.25

<0.001

Nodal Recurrence

1.31

0.97

1.77

0.074

Table 4: Cox proportional hazard model for overall survival comparing patients that developed HNSCC-SPT with those that did not develop SPT.