Table 1 Demographic and clinical characteristics of the couples

From: Small RNA in sperm–Paternal contributions to human embryo development

 

N

Median

Minimum

Maximum

Age male (years)

69

34

25

50

Age female (years)

69

33

26

39

BMI male (kg m²)

69

26.5

18.4

48.4

BMI female (kg m²)

69

24.6

18

33.9

Sperm concentration before gradient (million/mL)

70

27.8

4

100

Sperm concentration progressively motile sperm before gradient (million/mL)

70

15

2

50

Progressively motile sperm before gradient (%)

70

50

21

84

Motile sperm before gradient (%)

70

55

26

84

Progressively motile sperm after gradient (million)

70

10.5

0.5

60

Progressively motile sperm after gradient (million/mL)

70

10.5

1

60

Oocytes (n)

70

8

1

19

Total dose hormone (IU)

69

2050

875

5363

FSH:oocyte ratio

69

275

75

5363

Fertilised oocytes (n)

70

4.5

0

15

Fertilisation rate (%)

70

67

0

100

High-quality embryos (n)

65

1

0

6

Rate of high-quality embryos (%)

65

33

0

100

Live birth (n)

28

   

Gestational age (days)

28

277

245

292

Birthweight (grams)

28

3430

2770

4420

  1. Note. BMI body mass index. Gradient is referring to the PureSperm Gradient for in vitro fertilisation sperm preparation (see “Methods section”). IU international units. FSH follicle-stimulating hormone. FSH:oocyte ratio = Total dose hormone (IU) / n oocytes. Fertilisation rate = n fertilised oocytes/n oocytes retrieved*100. High-quality embryos are defined in the “Method section”. Rate of high-quality embryos = n high-quality embryos/ n fertilised oocytes*100. The couple with two treatments only contributes once to age and BMI. One female received hormonal treatment dosed in micrograms and not IU, therefore she is excluded from the parameters Total dose hormone (IU) and FSH:oocyte ratio.
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