Table 3 Rate of lymph node metastasis according to three risk factors [% (n)]
Size (cm) | M | SM | ||||||
|---|---|---|---|---|---|---|---|---|
UL- | 95%CI(%) | UL+ | 95%CI(%) | UL- | 95%CI(%) | UL+ | 95%CI(%) | |
≤ 1 | 0(0/24) | 0 | 0(0/15) | 0 | 20.0(1/5) | 35.5–75.5 | 10.0(1/10) | -12.6-32.6 |
> 1,≤2 | 6.1(3/49) | -0.8-13.1 | 15.4(4/26) | 0.5–30.2 | 15.0(3/20) | 2.1–32.1 | 34.1(14/41) | 19-0.49.3 |
> 2,≤3 | 7.7(2/26) | -3.3-18.7 | 27.3(6/22) | 7.1–47.5 | 7.7(1/13) | -9.1-24.5 | 30.6(11/36) | 14.7–46.4 |
>3 | 31.2(5/16) | 5.7–58.8 | 15.4(2/13) | -7.3-38.1 | 40.0(6/15) | 11.9–68.1 | 66.7(10/15) | 39.6–93.7 |