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Table 2 Clinicopathological features of papillary thyroid cancer patients according to the number of tumor Foci

From: Number of tumor foci predicts prognosis in papillary thyroid cancer

Variables G1 (n = 287) G2 (n = 141) G3 (n = 68) p value
Male gender 94 (32.8) 43 (30.5) 23 (33.8) NS
Age 47.1 ± 16.1 yr 41.1 ± 18.4 yr 35.5 ± 15.9 yr <0.05
Maximum size of tumor (cm) 2.29 ± 1.41 2.35 ± 1.9 2.37 ± 1.60 NS
Extrathyroidal extension 115 (40.1) 60 (42.6) 32 (47.1) NS
Central lymph node metastasis 215 (74.9) 110 (78.0) 56 (82.4) NS
Lateral lymph node metastasis 173 (60.3) 80 (56.7) 53 (77.9) NS
Neck recurrence 19 (6.6) 24 (17.6) 14 (20.6) <0.05
Distant recurrence 8 (2.8) 7 (5.0) 7 (10.3) NS
Died of thyroid cancer 4 (1.4) 6 (6.4) 5 (7.4) NS
  1. Data are presented as n (%) or mean ± standard deviation.
  2. Abbreviations: G1 1 tumor focus, G2 2 tumor foci, G3 3 or more tumor foci, NS not significant.
  3. Age at diagnosis and primary tumor size were compared using the Kruskal-Wallis test.
  4. Group comparisons of categorical variables were performed using the chi-square test or, for small cell values, Fisher’s exact test.