Table 1.

Characterisation of the subjects recruited in terms of number, age, gender, and smoking habits.

Subject Variables	Control Subjects (CTRL)	LC Patients
Number	27	28 *
Mean age (range)	36.1 (25–52)	55.5 (27–73)
Gender	16 male, 11 female	18 male, 9 female
Smokers	9	12

Legend: LC—lung cancer patients, * LC subtypes and their counts: metastatic adenocarcinoma of lung = 12; non-small cell lung carcinoma = 6; metastatic lung carcinoma = 5; squamous cell carcinoma of lung = 3, alveolar carcinoma = 2.