Table 1.

Demographics and nodule characteristics (Percentages based on number of patients with data available for analysis)

	All Registered Patients (n=637)	Randomized (n=389)	Unrandomized (n=248)	Included in analysis (n=208)	p-value comparing randomized vs unrandomized
Age (yr) – mean (SD)	66 (10)	68 (9)	64 (10)	64 (10)	< 0.001
Female – n (%)	359 (56%)	228 (59%)	131 (53%)	114 (55%)	0.151
Location of nodule – n (%)					0.572
RUL	216 (36%)	141 (37%)	75 (36%)	75 (36%)
LUL	162 (27%)	107 (28%)	55 (27%)	55 (27%)
RLL	82 (14%)	50 (13%)	32 (15%)	32 (15%)
LLL	93 (16%)	65 (17%)	28 (14%)	28 (14%)
RML	39 (7%)	22 (6%)	17 (8%)	17 (8%)
Pre-op biopsy done – n (%)	238 (41%)	192 (50%)	46 (23%)	46 (23%)	< 0.001
Never smoker – n (%)	79 (14%)	44 (11%)	35 (18%)	35 (18%)	0.036