Table 5.
Variables | Dydrogesterone (N = 989) | Allylestrenol (N = 989) | P-value |
---|---|---|---|
Endometrial morphology (%) | < 0.001* | ||
Type A | 216 (29.7) | 371 (37.9) | |
Type B | 509 (69.9) | 608 (62.1) | |
Type C | 3 (0.4) | 0 (0.0) | |
Endometrial perfusion (%) | 0.588 | ||
I | 80 (11.0) | 122 (12.6) | |
II | 644 (88.8) | 846 (87.2) | |
III | 1 (0.1) | 2 (0.2) | |
Endometrial thickness (cm) | 0.97 (0.21) | 1.00 (0.21) | 0.031* |
Uterine blood flow (artery) | |||
RI (left) | 0.80 (0.07) | 0.83 (0.34) | 0.031* |
RI (right) | 0.80 (0.10) | 0.81 (0.06) | < 0.001* |
PI (left) | 2.02 (0.57) | 2.20 (1.39) | 0.001* |
PI (right) | 1.96 (0.49) | 2.10 (0.43) | < 0.001* |
S/D (left) | 5.43 (1.56) | 6.03 (1.94) | < 0.001* |
S/D (right) | 5.32 (2.55) | 5.82 (1.71) | < 0.001* |
Endometrial blood flow | |||
RI | 0.52 (0.11) | 0.51 (0.10) | 0.042* |
PI | 0.86 (2.02) | 0.75 (0.22) | 0.096 |
S/D | 2.13 (0.56) | 2.08 (0.46) | 0.087 |
PSM propensity score matching, RI resistance index, PI pulsatility index; S/D: peak systolic to diastolic velocity ratio
*P < 0.05