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Table 3 Multivariate analysis for LCP and OS

From: Intensity-modulated radiotherapy versus three-dimensional conformal radiotherapy for stage I-II natural killer/T-cell lymphoma nasal type: dosimetric and clinical results

Factor OS   LCP  
  Hazard ratio p value Hazard ratio p value
  (95% CI)   (95% CI)  
IMRT 1.12(0.43–2.93) 0.81 1.05(0.31–3.59) 0.94
ECOG score =2 2.59(1.08–6.22) 0.03 2.23(0.76–6.54) 0.02
LDH elevated 3.05(1.03–9.06) 0.04
Stage = II± 2.10(0.29–15.00) 0.46
Nasal cavity lesions with extensive invasion& 1.30(0.83–2.06) 0.25 1.04(0.54–2.00) 0.92
Stage-modified IPI=2-3 0.95(0.40–2.24) 0.91 1.14(0.36–3.65) 0.83
  1. LDH elevation was accounted for in the multivariate analysis for LCP, but not for OS.
  2. ±Stage = 2 was accounted for in the multivariate analysis for OS, but not for LCP.
  3. &Nasal cavity lesions with extensive invasion: the tumor invaded nasal cavity and two or more neighboring anatomic structures(pnasal sinuses, nasopharynx, oropharynx or laryngopharynx).