Table 9.

Clinical prognostic factors related to radiation pneumonitis

CCT, concurrent chemotherapy; NR, not reported; KPS, Karnofsky performance status; ECOG, Eastern Cooperative Oncology Group; CT, chemotherapy; FEV1, forced expiratory volume in 1 sec; paO₂, arterial oxygen pressure; DLCO, diffusion capacity for carbon monoxide; CRP, C-reactive protein; COPD, chronic obstructive pulmonary disease; RT, radiation therapy.

^a)Radiation Therapy Oncology Group score for acute toxicity. ^b)Institutional criteria (similar to Common Toxicity Criteria [CTC]), ^c)Southwest Oncology Group score. ^d)CTC, ver. 4.0.