Table 3 Clinical and biological parameters of the embryos donated for the transcriptomic analysis.

From: Biphasic (5–2%) oxygen concentration strategy significantly improves the usable blastocyst and cumulative live birth rates in in vitro fertilization

Parameter

Monophasic (5%) O2 strategy

Biphasic (5%-2%) O2 strategy

p value

Blastocysts (n)

6

6

–

Women’s age (years)

37.9 ± 2.9

36.2 ± 2.2

0.39

Women’s BMI (kg/m2)

21.7 ± 2.1

23.2 ± 2.0

0.39

Men’s age (years)

37.9 ± 4.0

42.1 ± 1.7

0.05

Anti-Müllerian hormone (ng/ml)

6.3 ± 6.0

4.4 ± 1.7

0.64

Antral follicle count

18.0 ± 8.8

14.6 ± 1.3

0.22

Primary dose of gonadotrophins (IU)

202.4 ± 73.3

160.0 ± 22.4

0.39

Total dose of gonadotrophins (IU)

1883.4 ± 595.6

2040.0 ± 22.4

0.22

Duration of stimulation (days)

9.8 ± 0.8

11.6 ± 0.9

0.05

Vitrification day (day 5/day 6)

5/1

4/2

1

Blastocyst morphology (B3/B4/B5)

3/1/2

3/1/2

1

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