Table 2 Ultrasonic parameters of endometrial receptivity during implantation window in women with normal ovulation between the two groups
From: Fecundity disorders in older women: declines in follicular development and endometrial receptivity
Parameters | Older women (n = 156) | Young women (n = 178) | P value a |
|---|---|---|---|
Uterine artery PI | 2.03 ± 0.74 | 2.08 ± 0.81 | 0.897 |
Uterine artery RI | 0.76 ± 0.13 | 0.75 ± 0.15 | 0.903 |
Subendometrial region PI | 0.98 ± 0.24 | 1.00 ± 0.29 | 0.890 |
Subendometrial region RI | 0.76 ± 0.12 | 0.62 ± 0.11 | 0.041 |
Endometrial thickness (mm) | 9.01 ± 2.41 | 9.67 ± 2.68 | 0.335 |
Endometrial volume (cm3) | 2.93 ± 0.87 | 3.24 ± 1.02 | 0.126 |
Endometrial VI (%) | 1.72 ± 0.92 | 3.04 ± 1.13 | 0.019 |
Endometrial FI (0–100) | 19.45 ± 4.65 | 32.3 ± 6.32 | 0.015 |
Endometrial VFI (0–100) | 0.33 ± 0.02 | 0.97 ± 0.06 | 0.007 |