Table 1 The baseline characteristics of all subjects

Age, Mean ± SD

48.22 ± 12.31

Gender, n (%)

  Male

154 (30.26)

  Female

355 (69.74)

Groups, n (%)

  Benign nodules

264 (51.87)

  Malignant nodules

245 (48.13)

    PTC

189 (77.14)

    MTC

56 (22.86)

ACR TI-RADS score, M(Q₁,Q₃)

6 (3,9)

ACR TI-RADS,n(%)

  TR1

54 (10.61)

  TR2

30 (5.89)

  TR3

66 (12.97)

  TR4

116 (22.79)

  TR5

243 (47.74)

Kwak TI-RADS,n(%)

  TIRADS 2

54 (10.61)

  TIRADS 3

26 (5.11)

  TIRADS 4

405 (79.57)

    4a

85 (20.99)

    4b

80 (19.75)

    4c

240 (59.26)

  TIRADS 5

24 (4.72)