Table 1 Characteristics of the embryos from PGT-A cycles with three COS protocols

Cycles (n)

152

126

179

Female age(y)

37.11 ± 4.48 ^a

33.82 ± 5.25 ^b

34.01 ± 4.88 ^b

Female BMI (kg/m²)

22.33 ± 2.65

22.04 ± 2.63

21.97 ± 2.77

Male age(y)

39.72 ± 6.11^a

35.98 ± 6.48 ^b

36.48 ± 6.59 ^b

Infertility type

Primary (n/%)

30 (19.7%)

25 (19.8%)

32 (17.9%)

Secondary (n/%)

122 (80.3%)

101 (80.2%)

147 (82.1%)

Infertility duration (y)

3.32 ± 3.38

2.98 ± 3.14

3.04 ± 3.04

bFSH (IU/L)

8.15 ± 2.96 ^a

6.83 ± 2.19 ^b

6.96 ± 1.85 ^b

AMH (ng/ml)

2.27 ± 2.33 ^a

3.16 ± 2.08 ^b

3.62 ± 2.37 ^b

AFC

10.03 ± 6.72 ^a

11.76 ± 4.63 ^b

12.87 ± 6.30 ^b

Gn days (d)

8.93 ± 2.00 ^b

10.95 ± 2.00 ^a

9.17 ± 1.45 ^b

Gn dosage (IU)

2090.30 ± 650.09 ^b

2589.83 ± 821.74 ^a

2024.59 ± 531.60 ^b

E2 on trigger day (pg/ml)

2400.83 ± 1532.08 ^a

3485.49 ± 2017.96 ^b

3073.83 ± 1689.18 ^b

LH on trigger day (IU/L)

3.52 ± 2.39 ^a

1.93 ± 1.33 ^b

3.18 ± 2.32 ^b