Table 2.

Comparison of mean of variables in fertile and infertile women

Variable	Mean ± SD		t	P
	Infertile	Fertile
Age at menarche	13.37±1.65	13.50±1.60	-1.40	0.154
Duration of marriage (years)	9.64±7.34	11.16±7.27	-3.79	0.001
Age	31.04±7.39	31.43±6.80	-0.999	0.318
Spouse’s age	35.86±9.37	35.97±7.48	-0.230	0.818
Age at first marriage	21.08±5.31	20.18±4.24	-3.322	0.001
Attitude	56.60±7.03	56.81±6.66	-0.567	0.571