Table 4.

LPLN metastasis predictive model based on risk stratification score

Group	No. of patients	No. of patients LPLN metastasis	Incidence of LPLN metastasis (%)
I (no risk factors)	14	1	7.14
II (single risk factor)	18	2	11.10
III (2 or 3 risk factors)	6	2	33.33
IV (4 or more risk factors)	5	4	80