Table 3—

Comparison between total lung cancer and lung cancer with idiopathic pulmonary fibrosis (IPF) combined lung cancer with idiopathic pulmonary fibrosis (IPF-CA) groups

Total lung cancerIPF-CAp-value
Subjects n266063
Age yr61.3±10.766.8±7.80.0001
Smoker %75.688.90.002
Smoking pack-yrs30.9±21.641.5±22.10.001
Sex M:F (% M)2124:536 (80)61:2 (97)0.001
Histological type
 Squamous cell1188 (45)22 (35)0.151
 Adenocarcinoma909 (34)19 (30)0.562
 Large cell40 (2)4 (6)0.018
 Small cell390 (15)12 (19)0.303
 Others133 (5)6 (10)
  • Data presented as n (%) unless otherwise stated

  • M: male

  • F: female