Table 2

Surgery, stage and histological type of lung cancers in the study groups (n=138)

Active group
(n=67)
Control group
(n=71)
p Value
Surgery
 Resected35 (52%)20 (28%)
 Not resected32 (48%)51 (72%)0.003
Stage*
 I24 (36%)8 (11%)
 II5 (7%)5 (7%)
 III9 (13%)8 (11%)
 IV24 (36%)35 (49%)
 Unknown5 (7%)15 (21%)0.005
Histological type
 Adenocarcinoma29 (43%)21 (30%)
 Squamous cell carcinoma14 (21%)17 (24%)
 Small cell lung cancers10 (15%)11 (15%)
 Carcinoid2 (3%)0 (0%)
 Non-small cell carcinoma†3 (4%)5 (7%)
 Unclassified9 (13%)17 (24%)0.19
  • *Pathological or clinical.

  • †This category includes six non-small cell carcinomas (not other specified) and two adenosquamous carcinomas.