Table 1.

Patient characteristics

n	68
Age, years (median; range)	63.4 (34–86)
Sex, n (%)
Male	30 (44)
Female	38 (56)
Pathology, n (%)
Breast	17 (25)
Colon-rectal	14 (21)
Esophageal-gastric	8 (12)
Melanoma	5 (7)
Lung	4 (6)
Soft tissue sarcoma	4 (6)
Testicle	3 (5)
Kidney	3 (5)
Pancreas	3 (5)
Ovary	2 (3)
Bladder	1 (1)
Larynx	1 (1)
Thyroid	1 (1)
Prostate	1 (1)
Intestinal lymphoma	1 (1)
Stage of disease, n (%)
Stage I	10 (15)
Stage II	11 (16)
Stage III	14 (21)
Stage IV	20 (29)
NA	13 (19)
Smoking
No	30 (44%)
Yes	38 (56%)
History of lung pathology, n (%)
No	58 (85)
Yes	10 (15)