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Table 4 Multivariate analysis of factors that contributed to PTC recurrence in the training and testing sets

From: Using a nomogram based on preoperative serum fibrinogen levels to predict recurrence of papillary thyroid carcinoma

Variables Odds ratio 95% CI P value
Training set (n=414)    
  Serum fibrinogen levels (high vs low) 3.152 1.781-5.882 0.002
  T classification 4.117 1.340-9.831 <0.001
  N classification 1.682 1.132-2.862 0.046
  M classification 11.681 5.684-32.391 <0.001
Testing set (n=609)    
  Serum fibrinogen levels (high vs low) 2.891 1.201-4.874 0.032
  T classification 3.872 1.227-10.862 0.001
  N classification 1.621 1.201-2.984 0.042
  M classification 13.772 4.823-28.910 <0.001