Table 3. The multivariable logistic analysis of factors associated with CTCs in LUAD and LUSC.

Variables	CTCs
	OR	95% CI	P value
LUAD
CD68	1.56	0.78–3.77	0.045
P40	3.87	1.53–4.68	0.009
LUSC
Tumor size	2.29	0.13–5.46	0.01
Pleural indentation	1.66	0.39–4.33	0.02
Air bronchogram	1.37	0.79–2.87	0.04

CTC, circulating tumor cell; LUAD, lung adenocarcinoma; LUSC, lung squamous cell carcinoma; OR, odds ratio; CI, confidence interval.