. 2015 Aug;5(4):569–574. doi: 10.3978/j.issn.2223-4292.2015.08.06

Table 3. Anti Tg, Anti TPO levels and Anti Tg, Anti TPO positiveness of patients with hypoechoic US based on the degree of hypoechogenicity.

	Mild (n=119)	Moderate (n=139)	Marked (n=120)	P
Anti Tg level	103.4 (2.4-1,693)^a,b	168.9 (5-4,000)^a	215.1 (3.9-4,000)^b	<0.001†
Anti Tg positivity	81 (68.1%)^a,b	111 (79.9%)^a	100 (83.3%)^b	0.012‡
Anti TPO level	52 (0.3-662)^a,b	180.2 (4.9-1,300)^a	228.1 (0.6-1,300)^b	<0.001†
Anti TPO positivity	76 (63.9%)^a,b	113 (81.3%)^a	103 (85.8%)^b	<0.001‡

^†, Kruskal Wallis test; ^‡, Pearson’s chi-square test; ^a, the difference between mild group and moderate group is statistically significant (P<0.05); ^b, the difference between mild group and marked group is statistically significant (P<0.01). Anti Tg, anti-thyroglobulin; Anti TPO, thyroid peroxidase.