Impact of obesity on endometrial blood flow in women without polycystic ovarian syndrome during intracytoplasmic sperm injection

Table 2 Endometrial thickness, pattern and endometrial-subendometrial flow distribution pattern in women without PCOS (n = 206) according to BMIs (kg/m ² )

	BMI < 18.5	18.5 ≤ BMI < 24	24 ≤ BMI < 28	BMI ≥ 28	P
	(n = 42)	(n = 80)	(n = 44)	(n = 40)
*Endometrial thickness (mm)*	10.6 ± 2.1	10.5 ± 2.3	10.1 ± 2.2	9.5 ± 2.9	0.055
*Endometrial pattern* ^a					0.872
Triple layer	34 (81.0)	65 (81.3)	35 (79.5)	30 (75.0)
Non-triple layer	8 (19.0)	15 (18.7)	9 (20.5)	10 (25.0)
*Endometrial blood flow distribution pattern* ^a					0.149
A :subendometrial flow (−), endometrial flow (−)	9 (21.4)	11 (13.8)	10 (22.7)	11 (27.5)
B :subendometrial flow (+), endometrial flow (−)	13 (31.0)	22 (27.5)	13 (29.5)	17 (42.5)
C :subendometrial flow (+), endometrial flow (+)	20 (47.6)	47 (58.7)	21 (47.7)	12 (30.0)
*Uterine PI* ^b	2.10	2.11	2.11	2.13	0.413
*Uterine PI* ^b	(1.49-2.76)	(1.41-2.86)	(1.38-2.87)	(1.33-3.08)	0.413
*Uterine RI* ^b	0.80	0.81	0.82	0.82	0.683
*Uterine RI* ^b	(0.63-0.87)	(0.72-0.89)	(0.71-0.87)	(0.73-0.92)	0.683
*Uterine S/D* ^b	5.69	5.71	5.70	5.89	0.561
	(4.33-6.89)	(4.50-6.92)	(4.61-7.03)	(4.23-6.95)

Note: Values are mean ± SD.
RI resistance index, PI pulsatility Index, S/D the ratio between peak systolic flow and lowest diastolic flow.
^a Number of patients (%).
^b Values given as median (range).

ISSN: 1477-7827