Table 1.

Characteristics of the subject population

Primary NSCLC (n = 38)Heavy smokers (n = 36)Healthy nonsmokers (n = 28)
Age*66 (45-79)64 (43-83)60 (34-78)
Sex
    Female161613
    Male222015
Pack-years3648
Smoking status
    Smoker3236
    Never smoker628
Location of tumor
    Central18
    Peripheral20
StageAll are stage I
Histology
    AC of lung22
    SCC of lung16
  • Abbreviations: AC, adenocarcinoma; SCC, squamous cell carcinoma.

  • * Data are presented as median (range).