Fig 4. Kaplan-Meiyer analyses of disease-free survival of all 512 patients with papillary thyroid carcinoma (PTC) according to dyscohesive cells and psammoma bodies.

Dyscohesive cells (A) and psammoma body (B) predicted disease-free survival following surgical resection of PTC. (A) p = 0.033 between 0% and 1%-10% subgroups; p = 0.329 between 0% and 11%-19% subgroups; p = 0.036 between 0% and ≥ 20% subgroups; p = 0.449 between 1%-10% and 11%-19% subgroups; p = 0.463 between 1%-10% and ≥ 20% subgroups; p = 0.307 between 11%-19% and ≥ 20% subgroups; (B) p = 0.090 between 0 and 1–3 subgroups; p = 0.005 between 0 and ≥ 4 subgroups; p = 0.381 between 1–3 and ≥ 4 subgroups. (C) Results of disease-free survival of patients who were subdivided into three groups based on risk factors of dyscohesive cells ≥ 1% and psammoma body ≥ 4. p = 0.069 between 0 risk factors and 1 risk factor; p = 0.004 between 0 risk factors and 2 risk factors; p = 0.064 between 1 risk factor and 2 risk factors.