Table 4.

Distribution of risk scores and risk classification for LNM in the cohort

Total points	Total patients (N = 335)	LNM (N = 62)	Rate of LNM, %	95% CI, %
0	25	0	0.0	0.0–13.3
1	46	1	2.2	0.1–11.3
2	22	2	9.1	1.6–27.8
3	1	0	0.0	0.0–94.9
4	61	5	8.2	3.6–17.8
5	77	12	15.6	9.2–25.3
6	34	8	23.5	12.4–40.0
7	13	5	38.5	17.7–64.5
8	34	13	38.2	23.9–55.0
9	22	16	72.7	51.9–86.9

Risk category	Total points	Total patients (N = 335)	LNM (N = 62)	Rate of LNM, %	95% CI, %
Low	0 to 2	93	3	3.2	−0.4 to 6.9
Intermediate	3 to 6	172	25	14.5	9.2 to 19.9
High	7 to 9	69	34	49.3	37.8 to 60.8

LNM, lymph node metastasis.