Table 2.

Multiple linear regression analysis in PCOS women.

Independent variables: BMI, insulin, 25(OH)D, L/A, FAI
Step	Variables inserted in the model	p	R2
1	insulin	<0.001	0.26
2	insulin 25(OH)D	<0.001 0.001	0.33
Variables excluded from the model: BMI, L/A, FAI

Variations in PED/PEA-15 abundance explained by stepwise model (p to include < 0.05, p to remove > 0.1), with selected variables in PCOS women (n = 90). BMI, body mass index; 25(OH)D, 25(OH) Vitamin D; PED/PEA-15, L/A, leptin-to-adiponectin ratio; FAI, free androgen index.