From: The predictive association between radiological findings and lung cancer development in patients exposed to sulfur mustard gas: 4 decades follow up of 719 victims
Right lung
Left lung
Expected number
p value
Correlation with tumor location
Air trapping
147
118
132.5
0.07
0.252
Lung fibrosis
124
83
103.5
0.004
Bronchiectasis
91
60
75.5
0.01
0.000
Tumor
28
14
21
0.03
–