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Table 3 Univariate analysis of risk factors for skip metastasis in PTC patients

From: A nomogram to predict skip metastasis in papillary thyroid cancer

Variable Skip metastasis χ2/t P value
Present (n = 44) Absent (n = 334)
Sex (male/female) 9/35 105/229 2.23 0.136
Age( 55 years/< 55 years) 8/36 34/300 2.52 O.112
Age 44.48 ± 12.56 39.37 ± 11.51 2.74 0.006
Multifocality (yes/no) 7/37 77/257 1.15 0.284
Bilaterality (yes/no) 16/28 101/233 0.68 0.409
Primary tumor location upper/middle/lower 28/9/7 64/171/99 41.93 < 0.001
HT (yes/no) 9/35 78/256 0.18 0.668
ETE (yes/no) 8/36 61/273 0.001 0.989
Capsule invasion (yes/no) 11/33 84/258 0.001 0.983
Tumor extension (T1/T2/T3/T4) 23/7/12/2 196/41/71/26 1.87 0.6
Primary tumor size 1 cm (yes/no) 24/20 118/216 6.12 0.013
Total tumor size/cm 1.31 ± 0.87 1.59 ± 0.97 1.79 0.075
Number of central dissected lymph nodes 6.47 ± 4.59 7.65 ± 5.14 1.46 0.144
Number of lateral dissected lymph nodes 16.89 ± 10.12 18.44.47 ± 12.98 0.77 0.439
  1. HT Hashimoto’s thyroiditis, ETE extrathyroidal extension