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Table 3 Mean values in FEV1 between CTCAEv4.0 groups at baseline, end of third week, and two month post-RT

From: Severity of radiation pneumonitis, from clinical, dosimetric and biological features: a pilot study

Mean values

Low grade (G1–G2)

High grade (G3–G5)

p Value

Baseline

78.2% (SD 21.2)

88.5% (SD: 19.1)

0.2803

3 weeks of RT

93.4% (SD 17.5)

86.2% (SD: 22.4)

0.0668

2 months post-RT

78.7% (SD: 12.0)

76.4% (SD 11.8)

0.3015

  1. FEV1: forced expiratory volume in one second, CTCAEv4.0: common terminology criteria for Adverse Events version 4.0, RT: radiotherapy, SD: standard deviation