Table 6. Demographic and histopathological features of the prospective samples.

Characteristic	N = 58	%
Gender
Male	28	48.3
Female	30	51.7
Age
Average	61.9	–
Range	38–81	–
Smoker
Never	33	56.9
Light (pack-year <30)	5	8.6
Heavy (pack-year >30)	20	34.5
Grade
G1	13	22.4
G2	38	65.5
G3	7	12.1
Stage
I	21	36.2
II	13	22.4
III	17	29.3
V	7	12.1
Tumour content
10%–30%	31	53.4
30%–70%	25	43.1
>70%	2	3.4