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Table 3 Multivariate analysis of factors related to level V lymph node metastasis (LNM) in 330 patients with papillary thyroid carcinoma (PTC)

From: Should level V be included in lateral neck dissection in treating papillary thyroid carcinoma?

Variable P value Risk ratios 95.0% C.I.
Locationa 0.002 0.591 0.421 to 0.829
Gross Exb 0.049 2.014 1.004 to 4.038
Simultaneous metastasesc 0.004 2.074 1.271 to 3.385
  1. aThe site of primary PTC.
  2. bGross extrathyroidal extension.
  3. cSimultaneous metastases including level II, III and IV.