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Table 1 Clinico-pathological data for 56 papillary thyroid carcinoma cases and relationship between CXCR4 expression and covariates

From: CXCR4 expression in papillary thyroid carcinoma: induction by nitric oxide and correlation with lymph node metastasis

Factors   CXCR4 expression   p value
   Negative Positive  
Age <45 10 11 0.4009
  45 12 23  
Sex Male 4 3 0.4149
  Female 18 31  
Histology Well Diff. 20 29 0.1989
  Follicular variant 2 2  
  Poorly Diff. 0 3  
Tumor size pT1 1 6 0.1585
  pT2 16 21  
  pT3 3 1  
  pT4 2 6  
Lymph node Metastasis pN0 10 4 0.0116
  pN1a 3 12  
  pN1b 9 18  
Nitrotyrosine Levels Low grade 19 8 <0.001
  High grade 3 26  
  1. *Tumor size, lymph node metastasis, and distant metastasis were classified according to the TNM classification of the UICC, 2002
  2. *Fisher's exact test was used to examine the association between CXCR4 expression and covariates.
  3. *Diff.: Differentiated