TABLE 3.

Logistic regression analysis for cancer staging

Characteristics	OR	95% CI	p‐value
ILA (score 2) a	1.81	1.10–2.96	0.02
Age	1.05	0.95–1.15	0.35
Male sex	1.37	0.38–4.86	0.63
Former/current smoker b	1.23	0.32–4.75	0.77
Emphysema (≥5%)	1.01	0.35–2.90	0.98
Histology (SQC) c	1.92	0.85–4.30	0.12

Note: Bold values indicate that p < 0.05.

Abbreviations: CI, confidence interval; ILA, interstitial lung abnormality; OR, odds radio; SQC, squamous cell carcinoma.

^a Comparison of ILA score 2 with ILA score 0 or 1.

^b Comparison of former/current smoker with never smoker.

^c Comparison of squamous cell carcinoma with nonsquamous cell carcinoma.