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Table 4 Multivariate analysis for LRFS and DMFS for all patients

From: Evaluation of effect of body mass index and weight loss on survival of patients with nasopharyngeal carcinoma treated with intensity-modulated radiation therapy

   LRFS DMFS
Variable Comparison p HR (95 % CI) p HR (95 % CI)
Age Young vs. old 0.085 2.395(0.89–6.47) 0.661 1.203(0.53–2.74)
Sex Male vs. female 0.531 1.379(0.50–3.77) 0.145 1.864(0.81–4.30)
preT BMI <23 kg/m2 vs. ≥23 kg/m2 0.281 0.601(0.24–1.52) 0.134 0.528(0.23–1.22)
Education level Low vs. Medium 0.161 2.197(0.73–6.61) 0.538 1.336(0.53–3.36)
  Low vs. high 0.190 2.208(0.68–7.22) 0.750 0.823(0.25–2.72)
CCIS 0 vs. 1 0.005 4.264(1.56–11.65) 0.509 0.610(0.14–2.65)
  0 vs. ≥2 0.585 1.562(0.31–7.76) 0.804 1.217(0.26–5.73)
T classification Early vs. late 0.444 1.437(0.57–3.63) 0.520 0.765(0.34–1.73)
N classification Early vs. late 0.998 0.998(0.32–3.09) 0.524 1.448(0.46–4.53)
Treatment RT vs. CCRT 0.592 1.549(0.31–7.68) 0.091 0.310(0.08–1.21)
  RT vs. RT/CCRT + CT 0.353 2.202(0.42–11.65) 0.893 1.081(0.35–3.34)
BWL percentage <5 % vs. ≥5 % 0.284 1.759(0.63–4.94) 0.097 2.280(0.86–6.05)
  1. Abbreviations: HR hazard ratio; CI confidence interval. Other abbreviations as in Tables 1 and 2