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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Head Neck. 2019 May 2;41(9):3056–3063. doi: 10.1002/hed.25791

Table 3.

Univariate analysis of overall survival

Characteristic HR (95% CI) HR P-value Log-rank P-value
rENE 0.442
 Positive 1.37 (0.62–3.03) 0.444
 Negative - -
rENE Grade 0.719
 Definite 1.42 (0.55–3.71) 0.468
 Suspicious 1.35 (0.52–3.49) 0.539
 Negative - -
Sex 0.203
 Male 3.43 (0.46–25.67) 0.231
 Female - -
Race 0.075
 Other 2.60 (0.87–7.74) 0.086
 White - -
T Classification 0.173
 T1 - -
 T2 0.89 (0.33–2.41) 0.824
 T3 2.79 (0.93–8.32) 0.066
 T4 1.02 (0.31–3.31) 0.976
N Classification 0.351
 N1 - -
 N2 1.03 (0.14–7.63) 0.436
 N3 2.48 (0.25–24.34) 0.980
Smoker at Diagnosis 0.870
 Yes 0.91 (0.31–2.67) 0.870
 No - -
Prior Smoker 0.029
 Yes 2.68 (1.07–6.72) 0.036
 No - -
Total Pack-Years 0.064
 Never - -
 >0, ≤20 2.18 (0.73–6.51) 0.163
 >20 3.08 (1.16–8.22) 0.025

rENE: radiographic extranodal extension; HR: hazard ratio; CI: confidence interval