Table 1.

Interstitial lung abnormalities (ILA) scores and patient characteristics

Clinical characteristics		ILA score
		Score 0 (n=51)	Score 1 (n=52)	Score 2 (n=15)	Score 3 (n=2)	Total (n=120)	P value
Age (range)		60 (25-90)	64 (39-85)	70 (39-89)	55.5 (50-61)	64 (25-90)	0.01*
Gender	Male	23	21	9	0	53	0.38
	Female	28	31	6	2	67
Race	White	42	47	15	2	106	0.89
	Asian	4	2	0	0	6
	Black	4	2	0	0	6
	Other	1	1	0	0	2
Smoking	Never	20	8	1	0	29	0.03*
	Former	23	30	10	1	64
	Current	8	14	4	1	27
Pack years of smoking (range)		10 (0-60)	30 (0-100)	40 (0-180)	38.5 (27-50)	20 (0-180)	0.0002*
Distant metastasis	Present	39	43	11	2	95	0.75
	Absent	12	9	4	0	25
Histology	Adeno	47	43	15	1	106	0.19
	Squamous	2	3	0	0	5
	Other#	2	6	0	1	9
Systemic therapy	Chemo	33	39	10	1	83	0.004*
	TKIs	18	8	2	0	28
	None	0	5	3	1	9

^#Includes 7 patients with NSCLC NOS (not otherwise specified), one patient with large cell carcinoma and one patient with sarcomatoid carcinoma.