Fig 1.
Squamous cell carcinoma and CT pattern typical for UIP.
Axial CT image at the level of the upper lobes shows a left upper lobe squamous cell carcinoma and CT features of typical UIP.
Fig 2.
Lung cancer and CT pattern typical for UIP.
Axial CT image at the level of the middle lobe and lingula demonstrates a lingular lung cancer (stage IV) and CT features consistent with typical UIP (traction bronchiectasis and subpleural honeycombing).
Fig 3.
Squamous cell carcinoma and paraseptal emphysema.
Axial (a) and coronal (b) CT images demonstrate right upper lobe squamous cell carcinoma and severe upper lobe paraseptal emphysema.
Table 1.
Patients’ characteristics.
Table 2.
Number of patients per histologic type of cancer and clinical staging.
Table 3.
Classification and extent of ILD and extent of emphysema on CT in the study group.
Fig 4.
Survival curves for the study and control group.
Survival curves for the study (S) group (red colour) and control (C) group (blue colour) (p = 0.0092).
Fig 5.
Survival curves between different types of ILD.
There was no significant difference in survival rate between different types of ILD (log rank test, p = 0.195).
Fig 6.
Survival curves between different types of lung cancer in the study group.
There was no significant difference in survival rate between different types of lung cancer in the study group (log rank test, p = 0.4005).
Fig 7.
Survival curves between different types of lung cancer in the control group.
There was no significant difference in survival rate between different types of lung cancer in the control group (log rank test, p = 0.4886).
Fig 8.
Survival curves between typical and probable UIP compared to other types of ILD.
No significant difference was found in survival rate when combining typical UIP and probable UIP types and compared to other types of ILD (log rank test, p = 0.111).
Table 4.
Estimated hazard ratio from adjusted cox model.