Concerning the metabolic parameter in the PCOS group, BMI was positively correlated with FT (rho(250) = 0.34, p <  0.001) and FAI (rho(265) = 0.42, p <  0.001), and negatively correlated with SHBG (rho(272) = −0.48, p <  0.001). Here, SHBG is linked to polycystic ovary syndrome.