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Table 3 Characteristics of thyroid nodules (N = 555) that underwent ultrasound guided fine needle aspiration (UG-FNA) biopsy between January 2011 and December 2015 in a tertiary hospital in Abu Dhabi, United Arab Emirates

From: Thyroid malignancy among patients with thyroid nodules in the United Arab Emirates: a five-year retrospective tertiary Centre analysis

  Total N (%*) Cancer status p-value**
Cancer N (%a) No cancer N (%a)
N 555 (100) 49 (100) 506 (100)  
Nodule size 535 (100) 48 (100.0) 487 (100.0) 0.176
  < 1 cm 27 (5.1) 5 (10.4) 22 (4.5)
1 – < 2 cm 174 (32.5) 17 (35.4) 157 (32.2)
2–4 cm 222 (41.5) 20 (41.7) 202 (41.5)
  > 4 cm 112 (20.9) 6 (12.5) 106 (21.8)
Echogenicity 531 (100) 47 (100.0) 484 (100.0) 0.025
Cystic 15 (2.8) 1 (2.1) 14 (2.9)
Complex 287 (54.1) 17 (36.2) 270 (55.8)
Hyper-echoic 18 (3.4) 4 (8.5) 14 (2.9)
Hypo-echoic 124 (23.4) 17 (36.2) 107 (22.1)
Isoechoic 87 (16.4) 8 (17.0) 79 (16.3)
Calcification 547 (100) 48 (100.0) 499 (100.0) < 0.001
Coarse 25 (4.6) 14 (29.2) 11 (2.2)
Yes 125 (22.9) 10 (20.8) 115 (23.0)
No 397 (72.6) 24 (50.0) 373 (74.8)
Lymphadenopathy 554 (100) 49 (100) 505 (100) 0.999
No 530 (95.7) 47 (95.9) 483 (95.6)
Yes 24 (4.3) 2 (4.1) 22 (4.4)
FNA Cytology 551 (100) 49 (100) 502 (100) < 0.001
Bethesda, I 29 (5.3) 1 (2.0) 28 (5.6)
Bethesda II 435 (79.0) 4 (8.2) 431 (85.9)
Bethesda III 32 (5.8) 6 (12.2) 26 (5.2)
Bethesda IV 25 (4.5) 17 (34.7) 8 (1.6)
Bethesda V 16 (2.9) 12 (24.5) 4 (0.8)
Bethesda VI 14 (2.5) 9 (18.4) 5 (1.0)
  1. aColumn percent. **p-value comparing cancerous vs noncancerous groups
  2. (20, 24, 8, 1, & 4 nodules were missing size, echogenicity, calcification, lymphadenopathy, & FNA cytology information, respectively)