Table 1.

Correlation among the Ovarian Sensitivity Index (OSI), clinical (age, BMI), endocrine anti-Mullerian hormone (AMH) and US antral follicle count (AFC) variables related to the ovarian responsiveness (univariate analysis). Age and BMI turned out to be negatively related to the OSI, whereas the AMH and AFC were positively related. All the correlations were statistically significant.

	Coefficient	p
Age (years)	−0.45426	<0.0001
BMI (kg/m2)	−0.11756	0.0188
AFC	0.50336	<0.0001
AMH (ng/mL)	0.45017	<0.0001