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Table 3 Ultrasonographic characteristics of the NIFTP and non-NIFTP groups

From: Preoperative prediction of non-invasive follicular thyroid neoplasm with papillary-like nuclear features: a Canadian single-Centre experience

CharacteristicsNIFTPNon-NIFTPTotalP value
n = 44n = 159n = 203
Tumour size (mm), Mean (SD)22.97 +/− 12.325.88 +/− 11.225.43 +/− 11.60.0448a *
Echogenicity0.1585c
 Hypoechoic24 (54.5)99 (62.3)123 (60.6)
 Isoechoic20 (45.5)53 (33.3)73 (36)
 Hyperechoic07 (4.4)7 (3.4)
Solid Composition41 (93.2)119 (74.8)160 (78.8)0.0067b *
 Partially cystic3 (6.8)40 (25.2)43 (21.2)
Echogenic foci
 Absent38 (86.4)128 (80.5)166 (81.8)0.2947c
 Microcalcifications1 (2.3)15 (9.4)16 (7.8)
 Coarse calcifications5 (11.3)16 (10.1)21 (10.4)
 Regular Margins40 (90.9)131 (82.4)171 (84.2)0.2421b
 Irregular margins4 (9.1)28 (17.6)32 (17.8)
 Wider-than-tall Shape43 (97.7)157 (98.7)200 (98.5)0.5215b
 Taller-than wide1 (2.3)2 (1.3)3 (1.5)
Lymph Nodes>  0.9999b
 Absent44 (100)157 (98.7)201 (99)
 Present02 (1.3)2 (1)
2017 ACR TIRADS0.1585b
Category
 1–320 (45.4)62 (39)82 (40.4)
 424 (54.6)85 (53.5)109 (53.6)
 5012 (7.5)12 (6)
  1. atwo-tailed Mann-Whitney test
  2. btwo-tailed Fisher’s exact test
  3. cchi-square test
  4. *statistically significant (P < 0.05)