CT imaging features associated with recurrence in non-small cell lung cancer patients after stereotactic body radiotherapy

Table 1 Clinical and treatment characteristics of NSCLC patients treated with SBRT

Clinical features	Level	n	%
Gender	Female	23	39.0
Gender	Male	36	61.0
Age, median (range) (years)	73 (48–91)
Age	≤67	16	27.1
	68–80	28	47.5
	≥81	15	25.4
TNM stage	IA	42	71.2
	IB	16	27.1
	IIA	1	1.7
T stage	1A or 1B	42	71.2
T stage	2A or 2B	17	28.8
Smoker^a	No	42	72.4
Smoker^a	Yes	16	27.6
Pack-years smoking^a	median (range)	58 (15–200)
	≤40	14	25.0
	41–79	27	48.2
	≥80	15	26.8
O₂ dependence	No	45	79.0
O₂ dependence	Yes	12	21.1
ECOG	0 or 1	49	84.5
ECOG	2 or 3	9	15.5
CCI, median (range)	6 (3–12)
CCI	≤4	18	30.5
	5–7	28	47.5
	≥8	13	22.0
Dose/Fx	7.5	1	1.7
	10	54	91.5
	12	4	6.8
Pathology	adenocarcinoma	26	44.1
	squamous cell carcinoma	21	35.6
	NSCLC	10	16.9
	large cell carcinoma	2	3.4

^aThe pack-years smoking history could not be found in 2 cases and in one additional patient the smoking history was not noted

ISSN: 1748-717X