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Table 2 Univariate analyses of risk factors for 3-year LRFS, DMFS, DSS, and OS rates

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

Variable LRFS (%) p DMFS (%) p DSS (%) p OS (%) p
Age (y)   0.165   0.911   0.198   0.042
 <50 91.9   88.0   92.0   88.8  
 ≥50 88.6   87.3   84.9   87.0  
Sex   0.980   0.032   0.078   0.880
 Male 90.8   91.3   90.4   84.5  
 Female 88.6   79.4   83.5   81.8  
preT BMI   0.466   0.052   0.213   0.667
 <23 kg/m2 86.9   81.1   86.5   86.7  
 ≥23 kg/m2 91.9   93.8   89.2   82.0  
Education level   0.580   0.530   0.130   0.092
 Low 92.6   86.1   84.5   78.2  
 Medium 88.1   87.1   86.7   82.8  
 High 87.4   91.8   98.0   96.2  
Smoke   0.463   0.257   0.318   0.828
 No 90.9   86.4   86.6   83.1  
 Yes 88.4   90.5   91.9   84.9  
CCIS   0.022   0.638   0.663   0.025
 0 93.9   86.7   89.5   85.4  
 1 69.9   92.9   84.7   82.0  
 ≥2 88.8   89.3   83.8   71.9  
T stage   0.317   0.928   0.474   0.194
 T1/T2 92.2   86.9   89.8   85.7  
 T3/T4 87.9   88.7   86.5   81.5  
N stage   0.657   0.138   0.024   0.134
 N0/N1 92.4   92.8   96.6   89.7  
 N2/N3 89.3   85.8   85.3   81.4  
Treatment   0.488   0.013   0.094   0.471
 RT alone 93.8   86.9   92.3.   89.9  
 CCRT alone 91.8   94.9   93.0   83.5  
 RT/CCRT + CT 85.4   84.2   81.7   80.6  
BWL during RT   0.111   0.097   0.256   0.113
 ≥5 % 100.0   92.7   90.2   86.1  
 <5 % 88.2   84.7   90.7   82.1  
Hemoglobin   0.652   0.225   0.364   0.206
 ≥13.5 91.5   90.1   89.0   85.7  
 <13.5 88.3   83.0   87.4   79.2  
  1. Abbreviations: LRFS locoregional-free survival; DMFS distant metastasis-free survival; DSS disease-specific survival; OS overall survival. Other abbreviations as in Table 1