Table 3.

Logistic multivariable analyses for the prediction of lymph node-negative and lymph node-positive in pT1 IAC and SCC patients

Factors	Odds ratio	95% Confidence interval	P value
IAC and SCC patients
Gender (male vs. female)	1.333	0.475–3.741	0.580
Preoperative CEA level (<5.0 vs. ≥5.0 IU/mL)	3.647	1.908–6.971	<0.0001
Histology (IAC vs. SCC)	4.286	2.015–9.116	<0.0001
Tumor size, cm (≤1.0 vs. >1.0–≤2.0 vs.>2.0–≤3.0)	1.744	1.006–3.024	0.048
IAC patients
Preoperative CEA level (<5.0 vs. ≥5.0 IU/mL)	6.132	2.787–13.490	<0.0001
Tumor size, cm (≤1.0 vs. >1.0–≤2.0 vs. >2.0–≤3.0)	2.227	1.119–4.432	0.023

CEA carcinoembryonic antigen, IAC invasive lung adenocarcinoma, SCC squamous cell lung cancer