Fig. 2

Effect of average glucose level on accumulated healthcare costs at the discontinuity point (6.5%) across different timespans. Note: (1) The y-axis plots accumulated healthcare costs over the different timespans, which include visits and procedures in primary care, hospitalisations and emergency care, as well as drugs use, and where the number of days between the laboratory and the doctor’s diagnosis was 60 days. The x-axis refers to the glucose level value, measured by HbA1c, at the time of diabetes diagnosis- The vertical line denotes the threshold value of 6.5%. (2) The dots are bin averages. (3) The solid line represents a first-order polynomial regression