Table 1 Baseline characteristics comparing groups according to BMI

Maternal Age (years)

35.5 ± 3.6

35.9 ± 3.6 *

35 ± 4.3

35.5 ± 3.6

0.040^{a, b}

Paternal Age (years)

38.4 ± 6.2

38.7 ± 6

39 ± 8.1

38.5 ± 6.3

0.581^{a, b}

 Male factor

33.2

41 *

38.6

35.1

0.016^c

 Ovarian factor

16.7

18.2

22.8

17.4

0.215^c

 Tubal factor

18.8

22.7

22

19.8

0.208^c

 Endometriosis

22 *

14.8

11.4

19.8

0.001^c

 UI

16.5

11.9

15.4

15.5

0.111^c