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Table 5 Univariate analysis of risk factors for lateral lymph node metastasis

From: Risk factor analysis for predicting cervical lymph node metastasis in papillary thyroid carcinoma: a study of 966 patients

  OR 95%CI P value
  Lower Upper  
Gender (male vs. female) 1.60 1.00 2.56 0.051
Age (years)      0.025a
≤35 2.37 1.35 4.17 0.003
35–45 1.56 0.88 2.78 0.132
45–55 1.45 0.82 2.57 0.206
> 55 1    
Tumor size(cm)      < 0.001a
≤0.5 1    
0.5–1.0 1.46 0.66 3.23 0.346
1.0–2.0 2.47 1.13 5.40 0.024
> 2.0 4.30 1.89 9.81 0.001
Ultrasound feature
 Microcalcification (yes vs. no) 1.30 0.87 1.95 0.205
 Hypoechoic solid nodules (yes vs. no) 0.80 0.48 1.33 0.392
 Irregular shape (yes vs. no) 1.09 0.74 1.61 0.671
 Infiltrative margins (yes vs. no) 1.04 0.66 1.64 0.865
 Intra-nodular vascularity (yes vs. no) 1.01 0.66 1.56 0.953
Multifocality (yes vs. no) 1.32 0.88 1.97 0.175
Bilateral (yes vs. no) 1.38 0.88 2.15 0.160
Extrathyroidal extension (yes vs. no) 1.60 1.06 2.43 0.026
Distant metastasis (yes vs. no) 0.99 1.38 7.10 0.992
Hashimoto’s thyroiditis (yes vs. no) 1.22 0.83 1.81 0.311
The number of CLNM      < 0.001a
0 1    
1–3 3.31 2.13 5.15 < 0.001
> 3 12.24 5.98 25.06 < 0.001
TSH value   0.98 0.86 1.11 0.711
  1. ameans the global p-values; CLNM central lymph node metastasis