Table 2: Cycle characteristics and outcomes by age category.

<35 years35–37 years38–40 years>40 years
eSBT ( 𝑛 = 6 3 )eDBT ( 𝑛 = 2 0 8 )eSBT ( 𝑛 = 3 4 )eDBT ( 𝑛 = 1 1 3 )eSBT ( 𝑛 = 1 0 )eDBT ( 𝑛 = 8 1 )eSBT ( 𝑛 = 1 )eDBT ( 𝑛 = 1 3 )

Oocytes, mean16.717.417.517.916.315.723.017.5
Embryos, mean12.612.312.512.511.111.413.013.3
Blastocysts, meane6.66.66.76.35.65.44.05.9
Cryopreserved blastocysts, mean5.64.65.74.34.63.43.03.9
ICSI (%)36/63 (57.1)119/208 (57.2)13/34 (38.2)39/113 (34.5)0/10 (0)a29/81 (35.8)a1/1 (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)b36/113 (31.9)b0/19 (0)c17/52 (32.7)c0/3 (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)3223.4d2835.0d3180.92934.23345.32732.93657.12625.2

a 𝑃 < 0 . 0 5 : one-way ANOVA.
b 𝑃 < 0 . 0 0 5 : one-way ANOVA.
c 𝑃 < 0 . 0 1 : one-way ANOVA.
d 𝑃 < 0 . 0 5 : one-way ANOVA.
eBlastocysts: mean includes blastocysts cryopreserved and transferred.