Table 2.

Patient characteristics

	All patients (n=121)	RP patients (n=21)
		“unambiguous” (n=11)	“hard to score” (n= 10)
Mean age (range, years)	60 (39–86)	65 (42–85)	64 (47–85)
Gender (male)	76 (63%)	7 (33%)	6 (29%)
Stage
I	8 (7%)	-	3 (14%)
II	8 (7%)	1 (5%)	3 (14%)
III	105 (86%)	10 (48%)	4 (19%)
Smoking history*	109 (92%)	10 (48%)	9 (43%)
Ongoing smoking*	56 (47%)	2 (10%)	7 (33%)
Primary tumor location
Upper lobe	91 (75%)	7 (33%)	8 (38%)
Middle and/or lower lobe	30 (25%)	4 (19%)	2 (95%)
COPD history	48 (40%)	3 (14%)	7 (33%)
Pre-FEV1 <1.7 L **	50 (42%)	5 (24%)	8 (38%)

Abbreviations: RP= radiation pneumonitis

^*Available in the 119 patients.

^**Using 1.7 L as a cut-point (the median value in our patients). Available in the 118 patients