Table 1 Association between ultrasonic calcification patterns and cytology results of the thyroid nodules

Negative

623 (93.4)

44 (6.6)

1

1

Microcalcification

102 (75)

34 (25)

3.626 (2.258–5.822)

<0.001

1.878 (1.095–3.219)

0.022

Coarse

97 (89.8)

11 (10.2)

1.233 (0.625–2.435)

0.545

0.898 (0.429–1.878)

0.775

Fine-coarse

114 (89.1)

14 (10.9)

1.554 (0.861–2.803)

0.143

1.704 (0.916–3.170)

0.093

Eggshell

77 (85.6)

13 (14.4)

2.111 (1.098–4.055)

0.025

1.290 (0.635–2.619)

0.481