Sonographic appearance of anal cushions of hemorrhoids

Table 2 The mosaic pattern according to different methods for the three groups

	TRUS	TPUS	TVUS in female	Pathology	P value
Group A (stages III and IV)	22/38	12/38	4/12		0.03794
				20/38	0.24885
					0.80936
Group B (stages I and II)	4/24	2/24	2/10	-	0.66254
					0.79835
					0.70556
Group C (healthy controls)	0/42	0/42	0/18	-	-
χ2/t-value	8.64491	3.31421	0.04771	-	-
	30.69812	13.22522	4.33892
	4.81173	1.33053	1.44793
P value	0.00331	0.06871	0.82701	-	-
	0.00002	0.00032	0.03732
	0.02833	0.24873	0.22893

¹Comparison between group A and group B;

²Ccomparison between group A and group C;

³Comparison between group B and group C;

⁴Comparison between TRUS and TPUS;

⁵Comparison between TRUS and TVUS;

⁶Comparison between TPUS and TVUS. TRUS: Transrectal ultrasound; TPUS: Transperianal ultrasound; TVUS: Transvaginal ultrasound.