SHBG and metabolic syndrome: Plasma free and total testosterone and SHBG were significantly different (p = 0.01, p = 0.0002, and p = 0.009) in all tested groups as shown by ANOVA but were only significantly (p = 0.015, p = 8.6 × 10−5, and p = 0.004) lower in MetS by 22.4%, 32.8%, and 27.5% as compared to healthy normal subjects.