Table II.

Demographic data in fertile and infertile couples

Variables	Infertile	Fertile	Result **
Female age (years)	29.2 (4.9)	28.4 (3.9)	p=0.25 / z=1.14
Male age (years)	32.5 (5.1)	32.0 (4.8)	p=0.58 / z=0.56
Female body mass index *	25.2 (4.7)	24.3 (3.9)	p=0.14 / z=1.48
Male body mass index	26.3 (10.6)	25.9 (4.5)	p=0.51 / z=0.67
Duration of marriage (years)	6.9 (3.83)	6.4 (3.9)	p=0.21 / z=1.25

Data are presented as mean±SD.

^* Kilograms divided by the square meter

^** Mann-Whitney test