| < 8 mm | ≥ 8 mm | P value |
---|---|---|---|
Number | 23 | 472 | Â |
Age (year) | 31.6 ± 4.1 | 32.0 ± 4.8 | 0.52 |
BMI (kg/m2) | 22.5 ± 2.8 | 22.7 ± 3.3 | 0.80 |
AFC (n) | 14.7 ± 6.0 | 14.4 ± 5.7 | 0.58 |
Baseline FSH (IU/L) | 7.1 ± 1.8 | 7.4 ± 2.4 | 0.57 |
Baseline LH (IU/L) | 5.6 ± 4.3 | 4.9 ± 8.8 | 0.72 |
E2 on HCG day (pg/mL) | 5405.9 ± 2483.9 | 4745.5 ± 2651.4 | 0.24 |
P on HCG day (ng/mL) | 1.4 ± 0.9 | 1.0 ± 0.8 | 0.02 |
Endometrial thickness in first cycle (mm) | 8.3 ± 1.0 | 10.1 ± 1.9 | < 0.001 |
Endometrial thickness in second cycle (mm) | 6.7 ± 0.3 | 9.3 ± 1.4 | < 0.001 |
Endometrial thickness change (mm) | 1.5 ± 1.0 | 0.8 ± 1.8 | < 0.001 |
Gestational age of miscarriage (week) | 9.5 ± 1.5 | 9.3 ± 2.3 | 0.65 |
Interval time between two cycles (day) | 473.3 ± 228.5 | 377.4 ± 193.7 | 0.02 |
Times of cycle cancellation in second cycle (n) | 1.1 ± 1.4 | 0.3 ± 0.6 | < 0.001 |
Number of top quality embryos in second cycle (n) | 1.4 ± 0.8 | 1.1 ± 0.8 | 0.06 |
Number of embryos transferred in second cycle (n) | 1.9 ± 0.3 | 1.8 ± 0.4 | 0.14 |
Implantation rate in second cycle (%) | 27.9 (12/43) | 42.0 (348/829) | 0.07 |
Clinical pregnancy rate in second cycle (%) | 39.1 (9/23) | 55.7 (263/472) | 0.11 |
Live birth rate in second cycle (%) | 17.4 (4/23) | 43.0 (203/472) | 0.02 |
Miscarriage rate in second cycle (%) | 44.4 (4/9) | 16.4 (43/263) | 0.08 |