Table 2.
Cycle characteristics and outcomes by age category.
| <35 years | 35–37 years | 38–40 years | >40 years | |||||
|---|---|---|---|---|---|---|---|---|
| eSBT (n = 63) | eDBT (n = 208) | eSBT (n = 34) | eDBT (n = 113) | eSBT (n = 10) | eDBT (n = 81) | eSBT (n = 1) | eDBT (n = 13) | |
| Oocytes, mean | 16.7 | 17.4 | 17.5 | 17.9 | 16.3 | 15.7 | 23.0 | 17.5 |
| Embryos, mean | 12.6 | 12.3 | 12.5 | 12.5 | 11.1 | 11.4 | 13.0 | 13.3 |
| Blastocysts, meane | 6.6 | 6.6 | 6.7 | 6.3 | 5.6 | 5.4 | 4.0 | 5.9 |
| Cryopreserved blastocysts, mean | 5.6 | 4.6 | 5.7 | 4.3 | 4.6 | 3.4 | 3.0 | 3.9 |
| ICSI (%) | 36/63 (57.1) | 119/208 (57.2) | 13/34 (38.2) | 39/113 (34.5) | 0/10 (0)a | 29/81 (35.8)a | 1/1 (100) | 6/13 (46.1) |
| PGD (%) | 4/63 (6.3) | 13/208 (6.3) | 4/34 (11.8) | 6/113 (5.3) | 1/10 (10.0) | 4/81 (4.9) | 0/1 (0) | 2/13 (15.4) |
| Clinical PR (%) | 37/63 (58.7) | 113/208 (54.3) | 19/34 (55.9) | 52/113 (46.0) | 5/10 (50.0) | 35/81 (43.2) | 1/1 (100) | 7/13 (53.8) |
| Live birth/ongoing PR (%) | 32/63 (50.8) | 97/208 (46.6) | 16/34 (47.1) | 43/113 (38.1) | 3/10 (30.0) | 28/81 (34.6) | 1/1 (100) | 5/13 (38.5) |
| MGR (%) | 1/37 (2.7)b | 36/113 (31.9)b | 0/19 (0)c | 17/52 (32.7)c | 0/3 (0) | 12/35 (34.3) | 0/1 (0) | 2/7 (28.6) |
| Cesarean rate (%) | 6/22 (27.3) | 38/90(42.2) | 5/13(38.5) | 9/39 (23.1) | 0/3 (0) | 11/27 (40.7) | 1/1 (100) | 3/5 (60.0) |
| Birthweight, mean (g) | 3223.4d | 2835.0d | 3180.9 | 2934.2 | 3345.3 | 2732.9 | 3657.1 | 2625.2 |
a P < 0.05: one-way ANOVA.
b P < 0.005: one-way ANOVA.
c P < 0.01: one-way ANOVA.
d P < 0.05: one-way ANOVA.
eBlastocysts: mean includes blastocysts cryopreserved and transferred.