Table 6 Risk factors of lateral lymph node metastasis of patients older than 45 years old
LLNM | Univariate analysis | Multivariate analysis | ||||||
|---|---|---|---|---|---|---|---|---|
Variables | Present(n = 100) | Absent(n = 41) | OR(95% CI) | p value | OR(95% CI) | p value | ||
Male | 34(33.0%) | 8(19.5%) | 2.125(0.885–5.104) | 0.088 | ||||
Tumor size ≥ 20 mm | 22(22.0%) | 7(17.1%) | 1.370(0.535–3.511) | 0.511 | ||||
Upper lobe | 39(39.0%) | 8(19.5%) | 2.637(1.104–6.299) | 0.026 | 3.897(1.336–11.371) | 0.013 | ||
Multifocality | 75(75.0%) | 24(58.5%) | 2.125(0.985–4.584) | 0.052 | ||||
Bilaterality | 63(53.0%) | 20(48.8%) | 1.788(0.858–3.727) | 0.119 | ||||
Extra-thyroidal extension | 96(96.0%) | 27(65.9%) | 12.444(3.784–40.922) | < 0.001 | 13.005(3.202–52.822) | < 0.001 | ||
Extra-nodal extension | 35(35.0%) | 3(7.3%) | 6.821(1.964–23.691) | 0.001 | 4.309(1.057–17.569) | 0.042 | ||
CLNM | 78(78.0%) | 13(31.7%) | 7.636(3.396–17.171) | < 0.001 | 8.600(3.217–22.992) | < 0.001 | ||