Skip to main content

Table 2 Comparison of baseline characteristics and cytology results between palpation-guided and ultrasound-guided thyroid fine-needle aspiration biopsies

From: Cost-effectiveness comparison between palpation- and ultrasound-guided thyroid fine-needle aspiration biopsies

 

P-FNA

USG-FNA

p-value

Nodule number (n)

78

190

 

Age (years)*

47 ± 15

47 ± 12

0.86

Men (%)†

14 (18%)

42 (22%)

0.45

Euthyroid (%)†

69 (89%)

158 (83%)

0.27

Hypothyroid (%)†

5 (6%)

20 (11%)

0.29

Hyperthyroid (%)‡

4 (5%)

12 (6%)

1.00

Right lobe (%)†

39 (50%)

84 (44%)

0.48

Isthmus (%)†

12 (15%)

25 (13%)

0.48

Log (nodule diameter)*§

1.26 ± 0.18

1.27 ± 0.19

0.58

Malignant (%)‡

2 (3%)

6 (3%)

1.00

Benign (%)†

38 (49%)

118 (62%)

0.04

Indeterminate (%)‡

5 (6%)

11 (6%)

0.78

Inadequate (%)†

33 (42%)

55 (29%)

0.03

  1. Each case is a nodule, not a subject. P-FNA: palpation-guided thyroid fine-needle aspiration biopsy, USG-FNA: ultrasound-guided thyroid fine-needle aspiration biopsy *mean and standard deviation are given and Student's t test is used to compare groups †frequency and percentage are given and χ2 test is used to compare groups ‡frequency and percentage are given and Fisher's exact test is used to compare groups. §logarithm of maximal nodule diameter expressed as log (mm).