Furthermore, some women had measurements of blood glucose, determination of HbA1 or HbA1c or laboratory flat charge (EBM Codes 32025, 32057, 32881, 32094) resulting in 90.8% tested for (gestational) diabetes in 2014 rising to 93.3% in 2020 (Fig. 2). Here, HBA1 is linked to diabetes mellitus.