Table 2 Cycle characteristics of patients undergoing the GnRHa-HRT protocol with or without luteal GnRHa administration
Parameters | Luteal GnRHa group (n = 179) | Control group (n = 171) | p value |
|---|---|---|---|
Endometrial thickness (mm) | 11.1 ± 2.4 | 11.4 ± 2.6 | 0.164 |
Rate of ET day (%) | 0.711 | ||
Day 3 ET | 58.1% (104/179) | 56.1% (96/171) | |
Day 5 ET | 41.9% (75/179) | 43.9% (75/171) | |
No. of transferred embryos | 2.4 ± 0.8 | 2.5 ± 0.8 | 0.724 |
Quality of transferred embryos (%) | 0.677 | ||
Good quality only | 69.3% (124/179) | 67.8% (116/171) | |
Good and poor quality | 27.4% (49/179) | 26.9% (46/171) | |
Poor quality only | 3.4% (6/179) | 5.3% (9/171) | |
Rate of at least one top-quality embryo transferred (%) | 83.8% (150/179) | 83.6% (143/171) | 0.965 |
Biochemical pregnancy rate (%) | 64.8% (116/179) | 46.2% (79/171) | < 0.001 |
Clinical pregnancy rate (%) | 55.3% (99/179) | 40.4% (69/171) | 0.005 |
Implantation rate (%) | 33.4 ± 36.6% | 23.8 ± 33.6% | 0.012 |
Ongoing pregnancy rate (%) | 50.8% (91/179) | 35.1% (60/171) | 0.003 |
Live birth rate (%) | 49.2% (88/179) | 32.7% (56/171) | 0.002 |
Miscarriage rate (%) | 11.1% (11/99) | 18.8% (13/69) | 0.159 |
Early miscarriage rate (%) | 8.1% (8/99) | 13.0% (9/69) | 0.294 |
Late miscarriage rate (%) | 3.0% (3/99) | 5.8% (4/69) | 0.377 |