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Table 3 Multivariate analysis for OS and DSS 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

   OS DSS
Variable Comparison p HR (95 % CI) p HR (95 % CI)
Age Young vs. old 0.141 1.715(0.84–3.52) 0.204 1.756(0.74–4.19)
Sex Male vs. female 0.786 1.100(0.55–2.20) 0.194 1.727(0.76–3.94)
preT BMI <23 kg/m2 vs. ≥23 kg/m2 0.672 1.164(0.58–2.36) 0.341 0.670(0.29–1.53)
Education level Low vs. Medium 0.427 0.731(0.34–1.58) 0.807 1.122(0.44–2.84)
  Low vs. high 0.047 0.360(0.13–0.99) 0.199 0.368(0.08–1.69)
CCIS 0 vs. 1 0.852 0.911(0.34–2.42) 0.660 1.282(0.42–3.88)
  0 vs. ≥2 0.013 3.043(1.27–7.31) 0.318 1.936(0.53–7.08)
T classification Early vs. late 0.191 1.563(0.80–3.06) 0.706 1.171(0.52–2.66)
N classification Early vs. late 0.331 1.539(0.65–3.67) 0.128 3.206(0.71–14.40)
Treatment RT vs. CCRT 0.595 1.325(0.47–3.74) 0.468 0.612(0.16–2.30)
  RT vs. RT/CCRT + CT 0.655 1.276(0.44–3.73) 0.840 1.132(0.34–3.79)
BWL percentage <5 % vs. ≥5 % 0.087 1.910(0.91–4.01) 0.232 1.746(0.70–4.36)
  1. Abbreviations: HR hazard ratio; CI confidence interval. Other abbreviations as in Tables 1 and 2