Serum leptin level in Sudanese women with unexplained infertility and its relationship with some reproductive hormones

Table 2 Correlation between leptin and the other variables in both the case and control groups

Variable	Unexplained Infertility group		Fertile group
	r value	P value	r value	P value
Age in yr	-0.0441	0.524	-0.1072	0.142
BMI in kg/m2	0.1582	0.022	0.3982	< 0.001b
WHR	0.1411	0.041	0.3891	< 0.001b
FSH in IU/L	-0.8542	< 0.001b	-0.7231	< 0.001b
LH in IU/L	-0.7272	< 0.001b	-0.6831	< 0.001b
LH/FSH	0.7142	< 0.001b	0.2312	< 0.001a
PRL in μg/L	0.8882	< 0.001b	0.8882	< 0.001b
AMH in ng/mL	0.9282	< 0.001b	0.9172	< 0.001b
E2 in nmol/L	0.9162	< 0.001b	0.9672	< 0.001b
T in nmol/L	0.9322	< 0.001b	0.3592	0.033
E2/T ratio	0.4782	< 0.001b	0.1382	0.057

¹Pearson’s correlation.

²Spearman’s rank correlation.

^aP < 0.01.

^bP < 0.001.

AMH: Anti-Mullerian hormone; BMI: Body mass index; CI: Confidence interval; E2: Estradiol; FSH: Follicular stimulating hormone; LH: Luteinizing hormone; PRL: Prolactin hormone; T: Testosterone; WHR: Waist/hip ratio.