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

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

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

ISSN: 1748-717X