Table 1.

Characteristics of the study groups in the initial series of bronchoalveolar lavage fluids

Group* (n)Age, y (mean ± SD; range)Gender (males/females)Ever smokers
I (22)58.2 ± 14.9; 30-8214/811
II (17)60.5 ± 12.7; 38-8312/514
III (19)60.4 ± 11.2; 39-7916/314
IV (20)63.7 ± 10.0; 45-8117/316
  • *I, no malignancy; II, lung malignancy with diagnostic cytology; III, endoscopically visible lung malignancy with negative cytology; IV, distal lung malignancy with negative cytology.

  • No smoking history was available from one patient in the group.