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

Table 3 Average parameters of endometrial peristalsis analysis and their relations with clinical and ultrasound parameters

		Transfer direction			Peristalsis intensity	Transfer time (sec)	Transfer distance (mm)	Transfer velocity (mm/second)	Peristalsis frequency (/minute)
		CF	FC	OP
Menstrual cycle	Proliferate phase (n = 68)	37	24	7	21.842 ± 8.154	6.444 ± 4.067	13.474 ± 9.033	2.494 ± 1.120	2.125 ± 0.975
	Secretory phase (n = 44)	30	9	5	26.308 ± 9.866	5.804 ± 3.662	12.529 ± 6.054	2.743 ± 1.205	2.330 ± 1.120
	t/χ²	2.896			2.621	0.845	0.610	1.113	1.022
	P value	0.256			0.010	0.400	0.543	0.268	0.309
Uterine position	Anteverted (70)	43	21	6	25.280 ± 8.769	6.165 ± 3.974	11.567 ± 6.124	2.404 ± 1.007	2.164 ± 0.984
	Retroverted (45)	26	13	6	20.574 ± 8.786	6.080 ± 3.790	15.263 ± 9.737	2.903 ± 1.298	2.244 ± 1.161
	t/χ²	0.740			2.807	0.115	2.501	2.311	0.397
	P value	0.718			0.006	0.909	0.014	0.023	0.692
History of induced abortion	0 (54)	30	18	6	23.709 ± 8.808	6.234 ± 3.621	13.606 ± 8.665	2.644 ± 1.202	2.472 ± 1.066
	1 (35)	22	9	4	26.130 ± 7.802	5.716 ± 3.598	11.689 ± 6.646	2.480 ± 1.060	2.057 ± 0.914
	≥ 2 (26)	17	7	2	19.255 ± 9.828a	6.480 ± 4.803	13.564 ± 7.910	2.667 ± 1.192	1.808 ± 1.078b
	F/χ²	1.093			4.642	0.320	0.702	0.269	4.149
	P value	0.915			0.012	0.727	0.498	0.765	0.018
Endometrial grade	A (52)	34	12	6	23.998 ± 9.132	6.150 ± 3.767	11.886 ± 5.656	2.428 ± 0.988	2.327 ± 0.949
	B (39)	21	15	3	24.173 ± 9.137	6.411 ± 3.907	15.030 ± 10.745	2.754 ± 1.206	2.359 ± 1.063
	C (24)	14	7	3	21.035 ± 8.615	5.637 ± 4.219	12.178 ± 6.162	2.719 ± 1.370	1.646 ± 1.107c
	F/χ²	2.832			1.079	0.292	1.961	0.057	4.394
	P value	0.595			0.343	0.747	0.146	0.351	0.015
Age	≤ 35 year (80)	50	20	10	23.364 ± 9.387	5.734 ± 3.353	1.249 ± 0.795	2.583 ± 1.130	2.250 ± 1.049
	> 35 year (35)	19	14	2	23.611 ± 8.305	7.041 ± 4.826	1.422 ± 0.779	2.637 ± 1.215	2.071 ± 1.065
	t/χ²	2.996			0.134	1.455	1.079	0.233	0.836
	P value	0.221			0.893	0.152	0.283	0.816	0.405
Age	r	/			0.068	0.079	0.043	0.008	0.136
	P value	/			0.471	0.400	0.652	0.932	0.146
Uterine longitudinal diameter	r	/			0.042	0.036	0.096	0.100	0.216
	P value	/			0.659	0.703	0.309	0.286	0.020
Uterine endometrial thickness	r	/			0.316	0.069	0.084	0.107	0.293
	P value	/			0.001	0.436	0.370	0.254	0.001

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

^bP < 0.05 vs no history of induced abortion.

^cP < 0.05 vs endometrial grade as A or B.

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