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Table 1 The clinical and histopathological characteristics of the patients with papillary thyroid cancer measuring ≤1 cm

From: Impact of tumor size on subclinical central lymph node metastasis in papillary thyroid microcarcinoma depends on age

Characteristics

All patients

Patients without extrathyroidal extension

Enrolled patients

428

282

Sex (M/F)

67/361 (15.7%/84.3%)

44/238 (15.6%/84.4%)

Age (years), mean ± SD (range)

48.54 ± 12.31 (15 to 80)

48.27 ± 12.33 (15 to 77)

<45

164 (38.3%)

108 (38.3%)

≥45

264 (61.7%)

174 (61.7%)

Extent of thyroidectomy

  

  Total thyroidectomy

297

185 (65.6%)

  Less than total

131

97 (34.4%)

Tumor size (cm), mean ± SD (range)

0.66 ± 0.23 (0.1 to 1.0)

0.67 ± 0.23 (0.1 to 1.0)

Multifocality (%)

116 (27.1%)

67 (23.8%)

Central lymph node metastasis (%)

96 (22.4%)

52 (18.4%)

No. of metastasis

  

  1 to 3

71

37

  4 to 10

25

15

Thyroiditis (%)

53 (12.4%)

46 (16.3%)

Extrathyroidal extension (%)

146 (34.1%)

 
  1. M, male; F, female; SD, standard deviation; No., number.