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Table 1 Patient demographic and baseline characteristics

From: Analysis of risk factors for cervical lymph node metastasis of papillary thyroid microcarcinoma: a study of 268 patients

 Variables

All (n = 268)

 Female sex, n(%)

208(77.6)

Age, years

 Mean ± SD

43.3 ± 12.6

 Range

15, 72

Maximum diameter on pathology, mm

 Mean ± SD

6.1 ± 2.4

 Range

1, 10

  > 5, n(%)

148 (55.2)

Maximum diameter on ultrasound, mm

 Mean ± SD

9.8 ± 6.8

 Range

2, 49

  ≤ 5

53 (19.8)

  > 5

215 (80.2)

Location, n(%)

 Superior

69 (25.7)

 Middle

99 (36.9)

 Inferior

77 (28.7)

 Isthmus

15 (5.6)

 Missing

8 (3.0)

Hashimoto’s thyroiditis

 Yes

79 (29.5)

Capsular invasion, n(%)

 Yes

52 (19.4)

Extrathyroidal extension, n(%)

 Yes

49 (18.3)

 Cervical LN metastasis, n(%)

79 (29.5)

 Only central

70 (26.1)

 Only lateral

4 (1.5)

 Both central and lateral

5 (1.9)