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. 2013 Jun 26;11:57. doi: 10.1186/1477-7827-11-57

Table 2.

Endometrial thickness, pattern and endometrial-subendometrial flow distribution pattern in women without PCOS (n = 206) according to BMIs (kg/m2)

 
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)  

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).