Table 3.

Multiple linear regression analysis in lean PCOS women.

Independent variables: BMI, insulin, 25(OH)D, L/A, FAI
Step	Variables inserted in the model	p	R2
1	BMI	<0.001	0.52
2	BMI insulin	<0.001 0.021	0.58
Variables excluded from the model: 25(OH)D, L/A, FAI

Variations in PED/PEA-15 abundance explained by stepwise model (p to include < 0.05, p to remove > 0.1) in lean PCOS women (n = 42). BMI, body mass index; 25(OH)D, 25(OH) Vitamin D; PED/PEA-15, L/A, leptin-to-adiponectin ratio; FAI, free androgen index.