SHBG and autism: In crude and adjusted logistic regression analyses, autism status was significantly associated with decreased SHBG levels (OR = 0.66 per 50 nmol/L, 95% CI 0.56–0.77, p < 0.001; AOR = 0.65 per 50 nmol/L, 95% CI 0.55–0.78, p < 0.001, respectively).