Table 2 Laboratory and cytological characteristics of NIFTP vs non-NIFTP groups

Normal Preoperative TSH (0.4–4.50 IU/L), n (%)

43 (100)

152 (96.2)

195 (97)

Pre-operative

 Thyroglobulin Level

 (mcg/L), Median +/− IQR

n = 24

25.6 +/− 67.8

n = 92

76.1 +/− 119.8

67.4 +/−

111.2

Thyroglobulin Index

 (mcg/L/cm),

 Median +/− IQR

n = 24

11.3 +/− 20.2

n = 92

32.0 +/− 53.9

28.1 +/− 47.7

 III

28 (63.6)

80 (50.3)

108 (53.2)

 IV

1 (2.3)

9 (5.7)

10 (4.9)

 V

14 (31.8)

46 (28.9)

60 (29.6)

 VI

1 (2.3)

24 (15.1)

25 (12.3)

 HBME-1 Positive

23 (52.3)

69 (43.4)

92 (45.3)