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Table 3 Multivariate analysis of variables correlated with progression-free survival in 130 nasopharyngeal cancer patients treated with IMRT

From: Plasma uric acid and tumor volume are highly predictive of outcome in nasopharyngeal carcinoma patients receiving intensity modulated radiotherapy

Variable HR 95% CI P value
Tumor volume, ≥ 27 mL vs. < 27 mL 1.540 0.259-9.167 0.635
Post-treatment uric acid, ≤301 μmol/L vs. > 301 μmol/L 4.852 1.334-17.650 0.017
N category* 1.157 0.570-2.348 0.687
T category* 3.048 1.152-8.068 0.025
Age, ≤ 45 years vs. > 45 years 0.337 0.112-1.014 0.053
Sex, male vs. female 0.748 0.245-2.287 0.611
  1. HR, hazard ratio; CI, confidence interval; * According to the 7th edition of the American Joint Committee on Cancer/International Union Against Cancer staging system.