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Table 6 Multivariate analysis of risk factors for ≥ grade 2 radiation pneumonitis

From: Prognostic analysis of radiation pneumonitis: carbon-ion radiotherapy in patients with locally advanced lung cancer

  ≥grade 2 Radiation Pneumonitis
Factor Odds Ratio (95% CI) p value
%VC (<86.9% vs ≥86.9%) 13.7 (2.09–276.2) 0.0041
V30 (≥15% vs <15%) 6.1 (1.29–36.3) 0.0221
  1. RP radiation pneumonitis, %VC percent of vital capacity, RBE relative biological effectiveness, V 30 volume of lung receiving ≥30 Gy RBE