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Table 4 Overall survival (OS) of different grade of PA invasion

From: Is pulmonary artery a dose-limiting organ at risk in non-small cell lung cancer patients treated with definitive radiotherapy?

Grade n Median OS (95%CI) (months)* 1-year OS rate (%) 2-year OS rate (%)
0 49 41.8 (−) 100 79.6
1 36 27.8 (19.96–32.36) 91.67 66.67
2 37 12.7 (9.85–15.56) 54.05 37.84
3 19 7.5 (5.25–9.75) 21.05 0
  1. *P = 0.0003 for trend