Table 3 BMI groups and clinical outcomes

Female age (years)

37.6 ± 1.0

38.2 ± 0.2

38.2 ± 0.3

37.8 ± 0.7

0.36

N/A

Male age (years)

41.1 ± 0.6

39.9 ± 0.4

40.4 ± 0.8

39.2 ± 1.1

0.10

N/A

Infertility duration (years)

0.6 ± 0.3

0.7 ± 0.1

0.8 ± 0.2

1.0 ± 0.4

0.34

N/A

Previous miscarriages

0.6 ± 0.4

0.8 ± 0.1

0.67 ± 0.3

1.1 ± 0.5

0.27

N/A

Oocytes

12.6 ± 2.1

12.7 ± 0.6

12.8 ± 1.0

13.8 ± 1.5

0.37

N/A

Mature oocytes

11.1 ± 0.6

11.5 ± 0.4

11.5 ± 0.8

11.6 ± 1.0

0.93

N/A

Biopsied embryos

4.3 ± 0.8

4.5 ± 0.2

4.5 ± 0.4

4.1 ± 0.5

0.51

N/A

Euploid embryos

2.4 ± 0.6

2.4 ± 0.2

2.3 ± 0.1

2.3 ± 0.2

0.72

N/A

Endometrial thickness (mm)

8.8 ± 0.4

9.0 ± 0.2

9.1 ± 0.3

9.1 ± 0.3

0.74

N/A

Implantation rate (%)

70.4%^a,b,c

57%^a

56%^b

56.7%^c

0.04

^ap = 0.004

^bp < 0.001

^cp < 0.004

Pregnancy rate (%)

70.4%^a,b,c

57%^a

56%^b

56.7%^c

< 0.001

^ap < 0.001

^bp < 0.001

^cp < 0.004

Miscarriage rate (%)

13.4%^a

12.1%^b

14.5%^c

19.2%^a,b,c

0.01

^ap < 0.001

^bp < 0.001

^cp = 0.026

Live birth rate (%)

55.1%^a,b,c

44.4%^a

40.5%^b

37.5%^c

< 0.001

^ap < 0.001

^bp < 0.001

^cp < 0.001