at the limit of significancep = 0.053
In multivariable analysis, only the following variables remained significant: pT status ≥ 3 (HR 5.24 [95% CI 2.41–11.39]; p < 0.001) and metachronous OPSCC (HR 0.32 [95% CI 0.14–0.72]; p = 0.006), with cN+ status at the limit of significance (HR 2.31 [95% CI 0.99–5.41]; p = 0.053) (Table 5 ).