Women with serum SHBG concentrations <20 nmol/L had a 9‐fold higher risk of developing T2DM compared to the reference category of ≥60 nmol/L (aIRR 9.23, 95% CI 6.61‐12.88, P < 0.001), after adjustment for age, BMI, Townsend index and smoking status (Table 2 & Figure 2C,D). Here, SHBG is linked to type 2 diabetes mellitus.