failed to reach significancep = 0.111
There was also a tendency for N0-stage disease to correlate to a lower cfHPV-DNA level (N0: 26.3, N1: 217.8, N2: 253.2, N3: 703.0 median copies/ml, respectively), but this failed to reach significance ( p = 0.111) when comparing N0 to all other N-stages.