Table 1.

Patients’ baseline data.

	Patients with unilateral nodules	Patients with bilateral nodules	p value
Patients number	23	8	-
Age (y)	56.8 ± 10.8	52.8 ± 5.2	0.172
Gender (male/female)	10/13	5/3	0.605
Smoking history	5	1	1.000
Malignant history	3	0	0.550
Number of nodules			1.000
Patients with 2 lung nodules	19	7
Patients with ⩾3 lung nodules	4	1