Diagnostic value of total testosterone and free androgen index measured by <scp>LC</scp>–<scp>MS</scp>/<scp>MS</scp> for <scp>PCOS</scp> and insulin resistance

Abstract

LC-MS/MS is more sensitive and accurate than CLIA in the determination of serum TT and FAI. TT is more effective for the diagnosis of PCOS, whereas FAI is more valuable in the diagnosis of insulin resistance.