Pregnancy outcomes and adjusted odds ratio after stratification analyses based on development stage of vitrified embryos transfer.
| . | Implantation rate . | P-value . | aOR (95% CI) . | Live birth rate . | P-value . | aOR (95% CI) . |
|---|---|---|---|---|---|---|
| Cleavage embryo (n = 10 630) | 4899/17 567 (27.89%) | 3065/10 630 (28.83%) | ||||
| 0–2 years | 4262/15 663 (27.21%) | ref. | 2681/9543 (28.09%) | ref. | ||
| 2–5 years | 558/1654 (33.74%) | 0.433 | 1.06 (0.92–1.22) | 334/948 (35.23%) | 0.395 | 0.94 (0.81–1.09) |
| >5 years | 79/250 (31.60%) | 0.102 | 0.74 (0.52–1.06) | 50/139 (35.97%) | 0.414 | 0.86 (0.60–1.24) |
| Extended culture of cleavage embryos (n = 2388) | 1252/3871 (32.3%) | 802/2388 (33.58%) | ||||
| 0–2 years | 814/2757 (29.52%) | ref. | 493/1591 (30.99%) | ref. | ||
| 2–5 years | 349/877 (39.79%) | 0.538 | 0.93 (0.74–1.17) | 245/617 (39.71%) | 0.483 | 1.08 (0.87–1.35) |
| >5 years | 89/237 (37.55%) | 0.650 | 0.92 (0.65–1.31) | 64/180 (35.56%) | 0.843 | 1.04 (0.73–1.48) |
| Blastocyst (n = 23 414) | 14 215/32 977 (43.11%) | 9784/23 414 (41.79%) | ||||
| 0–2 years | 12 365/28 251 (43.77%) | ref. | 8531/20 252 (42.12%) | ref. | ||
| 2–5 years | 1677/4089 (41.01%) | 0.088 | 0.93 (0.85–1.01) | 1146/2848 (40.24%) | 0.156 | 0.94 (0.86–1.02) |
| >5 years | 173/464 (37.28%) | 0.033 | 0.78 (0.62–0.98) | 107/314 (34.08%) | 0.002 | 0.68 (0.53–0.87) |
| . | Implantation rate . | P-value . | aOR (95% CI) . | Live birth rate . | P-value . | aOR (95% CI) . |
|---|---|---|---|---|---|---|
| Cleavage embryo (n = 10 630) | 4899/17 567 (27.89%) | 3065/10 630 (28.83%) | ||||
| 0–2 years | 4262/15 663 (27.21%) | ref. | 2681/9543 (28.09%) | ref. | ||
| 2–5 years | 558/1654 (33.74%) | 0.433 | 1.06 (0.92–1.22) | 334/948 (35.23%) | 0.395 | 0.94 (0.81–1.09) |
| >5 years | 79/250 (31.60%) | 0.102 | 0.74 (0.52–1.06) | 50/139 (35.97%) | 0.414 | 0.86 (0.60–1.24) |
| Extended culture of cleavage embryos (n = 2388) | 1252/3871 (32.3%) | 802/2388 (33.58%) | ||||
| 0–2 years | 814/2757 (29.52%) | ref. | 493/1591 (30.99%) | ref. | ||
| 2–5 years | 349/877 (39.79%) | 0.538 | 0.93 (0.74–1.17) | 245/617 (39.71%) | 0.483 | 1.08 (0.87–1.35) |
| >5 years | 89/237 (37.55%) | 0.650 | 0.92 (0.65–1.31) | 64/180 (35.56%) | 0.843 | 1.04 (0.73–1.48) |
| Blastocyst (n = 23 414) | 14 215/32 977 (43.11%) | 9784/23 414 (41.79%) | ||||
| 0–2 years | 12 365/28 251 (43.77%) | ref. | 8531/20 252 (42.12%) | ref. | ||
| 2–5 years | 1677/4089 (41.01%) | 0.088 | 0.93 (0.85–1.01) | 1146/2848 (40.24%) | 0.156 | 0.94 (0.86–1.02) |
| >5 years | 173/464 (37.28%) | 0.033 | 0.78 (0.62–0.98) | 107/314 (34.08%) | 0.002 | 0.68 (0.53–0.87) |
Pregnancy outcomes and adjusted odds ratio after stratification analyses based on development stage of vitrified embryos transfer.
| . | Implantation rate . | P-value . | aOR (95% CI) . | Live birth rate . | P-value . | aOR (95% CI) . |
|---|---|---|---|---|---|---|
| Cleavage embryo (n = 10 630) | 4899/17 567 (27.89%) | 3065/10 630 (28.83%) | ||||
| 0–2 years | 4262/15 663 (27.21%) | ref. | 2681/9543 (28.09%) | ref. | ||
| 2–5 years | 558/1654 (33.74%) | 0.433 | 1.06 (0.92–1.22) | 334/948 (35.23%) | 0.395 | 0.94 (0.81–1.09) |
| >5 years | 79/250 (31.60%) | 0.102 | 0.74 (0.52–1.06) | 50/139 (35.97%) | 0.414 | 0.86 (0.60–1.24) |
| Extended culture of cleavage embryos (n = 2388) | 1252/3871 (32.3%) | 802/2388 (33.58%) | ||||
| 0–2 years | 814/2757 (29.52%) | ref. | 493/1591 (30.99%) | ref. | ||
| 2–5 years | 349/877 (39.79%) | 0.538 | 0.93 (0.74–1.17) | 245/617 (39.71%) | 0.483 | 1.08 (0.87–1.35) |
| >5 years | 89/237 (37.55%) | 0.650 | 0.92 (0.65–1.31) | 64/180 (35.56%) | 0.843 | 1.04 (0.73–1.48) |
| Blastocyst (n = 23 414) | 14 215/32 977 (43.11%) | 9784/23 414 (41.79%) | ||||
| 0–2 years | 12 365/28 251 (43.77%) | ref. | 8531/20 252 (42.12%) | ref. | ||
| 2–5 years | 1677/4089 (41.01%) | 0.088 | 0.93 (0.85–1.01) | 1146/2848 (40.24%) | 0.156 | 0.94 (0.86–1.02) |
| >5 years | 173/464 (37.28%) | 0.033 | 0.78 (0.62–0.98) | 107/314 (34.08%) | 0.002 | 0.68 (0.53–0.87) |
| . | Implantation rate . | P-value . | aOR (95% CI) . | Live birth rate . | P-value . | aOR (95% CI) . |
|---|---|---|---|---|---|---|
| Cleavage embryo (n = 10 630) | 4899/17 567 (27.89%) | 3065/10 630 (28.83%) | ||||
| 0–2 years | 4262/15 663 (27.21%) | ref. | 2681/9543 (28.09%) | ref. | ||
| 2–5 years | 558/1654 (33.74%) | 0.433 | 1.06 (0.92–1.22) | 334/948 (35.23%) | 0.395 | 0.94 (0.81–1.09) |
| >5 years | 79/250 (31.60%) | 0.102 | 0.74 (0.52–1.06) | 50/139 (35.97%) | 0.414 | 0.86 (0.60–1.24) |
| Extended culture of cleavage embryos (n = 2388) | 1252/3871 (32.3%) | 802/2388 (33.58%) | ||||
| 0–2 years | 814/2757 (29.52%) | ref. | 493/1591 (30.99%) | ref. | ||
| 2–5 years | 349/877 (39.79%) | 0.538 | 0.93 (0.74–1.17) | 245/617 (39.71%) | 0.483 | 1.08 (0.87–1.35) |
| >5 years | 89/237 (37.55%) | 0.650 | 0.92 (0.65–1.31) | 64/180 (35.56%) | 0.843 | 1.04 (0.73–1.48) |
| Blastocyst (n = 23 414) | 14 215/32 977 (43.11%) | 9784/23 414 (41.79%) | ||||
| 0–2 years | 12 365/28 251 (43.77%) | ref. | 8531/20 252 (42.12%) | ref. | ||
| 2–5 years | 1677/4089 (41.01%) | 0.088 | 0.93 (0.85–1.01) | 1146/2848 (40.24%) | 0.156 | 0.94 (0.86–1.02) |
| >5 years | 173/464 (37.28%) | 0.033 | 0.78 (0.62–0.98) | 107/314 (34.08%) | 0.002 | 0.68 (0.53–0.87) |
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