Value of endometrial peristalsis analysis technique in detecting and analyzing endometrial peristalsis features

Table 4 Highest parameters of endometrial peristalsis analysis and their relations with clinical and ultrasound parameters

		Transfer direction		Peristalsis intensity	Transfer time (second)	Transfer distance (mm)	Transfer velocity (mm/second)
		CF	FC
Menstrual cycle	Proliferate phase (n = 68)	39	28	25.857 ± 10.307	6.255 ± 4.722	12.478 ± 7.429	2.643 ± 1.790
	Secretory phase (n = 44)	30	13	32.180 ± 12.162	5.793 ± 3.914	13.177 ± 6.899	3.113 ± 2.213
	t/χ²	1.497		2.953	0.539	0.500	1.235
	P value	0.234		0.004	0.591	0.618	0.219
Uterine position	Anteverted (70)	43	27	30.151 ± 11.023	6.074 ± 4.363	11.447 ± 6.888	2.427 ± 1.516
	Retroverted (45)	29	14	25.043 ± 11.679	5.868 ± 4.450	14.513 ± 7.210	3.462 ± 2.365
	t/χ²	0.417		2.369	0.246	2.288	2.610
	P value	0.552		0.020	0.806	0.024	0.011
History of induced abortion	0 (54)	32	20	28.978 ± 11.596	5.816 ± 4.038	12.441 ± 6.344	2.898 ± 2.111
	1 (35)	23	12	31.406 ± 9.595	5.755 ± 3.586	11.866 ± 6.780	2.711 ± 1.909
	≥ 2 (26)	17	18	22.058 ± 11.783a	6.684 ± 5.894	14.127 ± 9.038	2.857 ± 1.712
	F/χ²	2.365		5.601	0.416	0.787	0.099
	P value	0.321		0.005	0.661	0.458	0.906
Endometrial grade	A (52)	34	18	28.768 ± 11.190	6.217 ± 4.455	11.746 ± 6.254	2.349 ± 1.266
	B (39)	21	18	29.634 ± 11.939	6.195 ± 4.555	13.654 ± 8.558	2.952 ± 2.058
	C (24)	17	5	24.407 ± 11.144	5.181 ± 3.984	12.963 ± 6.447	3.683 ± 2.648b
	F/χ²	3.455		1.690	0.518	0.822	4.171
	P value	0.185		0.189	0.597	0.442	0.018
Age, year	≤ 35 (80)	52	27	28.323 ± 11.848	5.613 ± 3.752	11.800 ± 6.092	2.778 ± 1.974
	> 35 (35)	20	14	27.761 ± 10.851	6.862 ± 5.519	14.583 ± 8.908	2.954 ± 1.920
	t/χ²	0.504		0.240	1.221	1.684	0.442
	P value	0.526		0.811	0.228	0.099	0.659
Age	r	/		0.139	0.056	0.063	0.066
	P value	/		0.139	0.552	0.500	0.483
Uterine longitudinal diameter	r	/		0.069	0.044	0.080	0.170
	P value	/		0.462	0.644	0.393	0.069
Uterine endometrial thickness	r	/		0.317	0.083	0.152	0.035
	P value	/		0.001	0.376	0.104	0.710

^aP < 0.05 vs no history of induced abortion or 1 time of induced abortion.

^bP < 0.05 vs endometrial grade as A.

FC: Fundus to cervix; CF: From cervix to fundus.