hMG (n = 299) | HP-hMG (n = 330) | r-hFSH (n = 236) | p value | |
---|---|---|---|---|
Mean length of stimulation, days (± SD) | 9.6 (± 1.3)a | 10.0 (± 1.3)b | 10.1 (± 1.0)c | < 0.001 (a vs b, c) |
≤35 years | 9.5 (± 1.3)a | 9.9 (± 1.2)b | 10.0 (± 0.9)c | < 0.001 (a vs b, c) |
>35 years | 9.8 (± 1.4)a | 10.2 (± 1.6)b | 10.2 (± 1.1)c | 0.007 (a vs b, c) |
Gonadotropin dose adjustment, n (%) | 56 (18.7)a | 67 (20.3)b | 126 (53.4)c | < 0.001 (c vs a, b) |
≤35 years | 43 (20.1)a | 47 (23.7)b | 90 (63.3)c | < 0.001 (c vs a, b) |
>35 years | 13 (15.1)a | 20 (15.1)b | 36 (38.2)c | < 0.001 (c vs a, b) |
Mean estradiol on day of hCG, pg/mL (± SD) | 1967.0 (± 1241.0)a | 2479.0 (± 1708.0)b | 2159.3 (± 1411.7)c | 0.001 (a vs b, c) |
≤35 years | 2174.8 (± 1224.4)a | 2609.3 (± 1632.0)b | 2392.3 (± 1422.3)c | 0.035 (a vs b) |
>35 years | 1432.7 (± 1124.6)a | 2285.1 (± 1804.4)b | 1789.1 (± 1325.7)c | 0.001 (a vs b) |
Cancellation rate, n (%) | 23 (7.7) | 21 (6.4) | 17 (7.2) | 0.80 |
≤35 years | 10 (4.7) | 9 (4.5) | 10 (7.0) | 0.50 |
>35 years | 13 (15.1) | 12 (9.0) | 7 (7.4) | 0.20 |
Severe OHSS, n (%) | 7 (2.3) | 6 (1.8) | 3 (1.3) | 0.76 |
≤35 years, n | 5 | 4 | 3 | - |
>35 years, n | 2 | 2 | 0 | - |
Mean number of retrieved oocytes, n (± SD) | 10.9 (± 6.8) | 10.7 (± 6.5) | 10.8 (± 6.7) | 0.97 |
≤35 years | 12.3 (± 6.7) | 11.3 (± 5.5) | 11.7 (± 6.0) | 0.50 |
>35 years | 7.5 (± 5.8) | 9.7 (± 7.6) | 9.5 (± 7.5) | 0.08 |
Mean MII oocytes, n (± SD) | 8.9 (± 5.6) | 8.9 (± 5.7) | 8.7 (± 5.6) | 0.82 |
≤35 years | 10.1 (± 5.5) | 9.4 (± 4.8) | 9.1 (± 5.0) | 0.20 |
>35 years | 5.8 (± 4.4)a | 8.3 (± 6.8)b | 8.1 (± 6.3)c | 0.01 (a vs b, c) |
Fertilization rate 2PN, % (± SD) | 72 (± 25) | 72 (± 22) | 71 (± 23) | 0.83 |
≤35 years | 71 (± 22) | 72 (± 22) | 72 (± 22) | 0.76 |
>35 years | 73 (± 30) | 72 (± 24) | 70 (± 25) | 0.20 |
Top quality embryos on day3, % (± SD) | 40 (± 30)a | 47 (± 31)b | 39 (± 29)c | 0.004 (b vs a, c) |
≤35 years | 41 (± 29)a | 47 (± 28)b | 39 (± 28)c | 0.03 (b vs a, c) |
>35 years | 39 (± 34) | 48 (± 34) | 37 (± 30) | 0.08 |
Mean number of transferred embryos, n (± SD) | 3.4 (± 1.6) | 3.4 (± 1.5) | 3.2 (± 1.6) | 0.18 |
≤35 years | 3.5 (± 1.4) | 3.5 (± 1.4) | 3.2 (± 1.4) | 0.05 |
>35 years | 2.9 (± 1.9) | 3.1 (± 1.6) | 3.2 (± 1.8) | 0.50 |