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

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

  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
(1.49-2.76) (1.41-2.86) (1.38-2.87) (1.33-3.08)
Uterine RI b 0.80 0.81 0.82 0.82 0.683
(0.63-0.87) (0.72-0.89) (0.71-0.87) (0.73-0.92)
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)  
  1. Note: Values are mean ± SD.
  2. RI resistance index, PI pulsatility Index, S/D  the ratio between peak systolic flow and lowest diastolic flow.
  3. a Number of patients (%).
  4. b Values given as median (range).