Table 1.

Clinical characteristics of the recruited participants.

	Participants (n = 100)
Age, years
Mean ± SD	63.13 ± 8.88
Range	30–85
Sex, n (%)
Male	77 (77%)
Female	23 (23%)
BMI, kg/m²
Mean ± SD	21.92 ± 5.11
Smoking status, n (%)
Smoker	62 (62%)
Non-smoker	38 (38%)
Pack-years	50.44 ± 38.33
Lesion distribution, n (%)
Visible	60 (60%)
Invisible	40 (40%)
Cell type, n (%)
Malignant	67 (67%)
Squamous cell carcinoma	29 (29%)
Adenocarcinoma	25 (25%)
Small-cell lung cancer	8 (8%)
Other cancer type	5 (5%)
Benign	33 (33%)

SD, standard deviation; BMI, body mass index.