Table 2. Multivariate analysis of predictive factors for LNM in pT1 ESCC.

Characteristic	B	OR	95% CI	P value
Degree of tumor differentiation (G1/G2/G3)	0.729	1.942	1.067–3.536	0.030*
T1 sub-stage (T1a/T1b)	0.664	4.750	1.658–13.611	0.004*
Tumor size (<2 cm/≥2 cm)	1.559	2.075	0.851–5.062	0.108
LSR	1.683	5.371	1.676–17.210	0.005*
HDL-C (mmol/L)	1.775	5.894	1.917–18.124	0.002*

*, P<0.05. LNM, lymph node metastasis; ESCC, esophageal squamous cell carcinoma; LSR, alanine aminotransferase/aspartate aminotransferase ratio; HDL-C, high-density lipoprotein cholesterol; B, regression coefficient; OR, odds ratio; CI, confidence interval.