Table 2.

Univariate and multivariate regression model for factors associated with lymph node metastasis

	OR(95%CI)	p value	Adjusted OR (95%CI)	p value
Age
<12	1.0		1.0
> = 12	0.56 (0.16–1.93)	0.36	0.834 (0.16–4.50)	0.83
Gender
Males	1.0		1.0
Females	0.14 (0.03–0.67)	0.014	0.41 (0.05–3.38)	0.41
Lesion
Single	1.0		1.0
Multifocal	4.86 (1.27–18.55)	0.021	3.57 (0.57–22.20)	0.17
Tumor size
<=4	1.0		1.0
>4	1.75 (0.35–8.61)	0.49	0.80 (0.08–7.93)	0.85
ETE
Yes	23.62 (4.85–115.06)	<0.001	8.08 (1.44–45.42)	0.018
No	1.0		1.0
LVI
Yes	16.70 (2.04–136.94)	0.009	6.39 (0.62–65.66)	0.12
No	1.0