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Table 6 Comparison of malignancy rates per preoperative thyroid FNA diagnostic category between our center and other published studies using the most malignant FNA per patient at our center

From: Thyroid Fine-needle aspiration biopsy: an evaluation of its utility in a community setting

FNA Result

Blansfield et al.

Postma et al.

Wu et al.

Williams et al.

Our study

Unsatisfactory

0/11 = 0%

0/0 = 0%

3/21 = 14.2%

10/55 = 18.2%

2/17 = 11.8%

Benign

3/44 = 6.8%

0/28 = 0%*

2/63 = 3.1%*

15/94 = 16.0%

4/22 = 18.0%

Inconclusive

25/85 = 29.4%

3/47 = 6%*

14/100 = 14.0%

55/208 = 26.4%

22/76 = 28.9%

Suspicious for malignancy

8/14 = 57.1%

5/6 = 83%

10/18: 55.6%

16/17: 94.1%

6/8: 75.0%

Malignant

27/29 = 93.1%

2/2 = 100%

19/19 = 100%

14/14 = 100%

2/2: 100%

Total

63/183 = 34.4%

10/83 = 12.0%

48/221 = 21.7%

110/388 = 28.4%

36/125 = 28.8%

  1. *Fisher’s exact p < 0.05.
  2. FNA: fine-needle aspiration.