Fig. 2

Association between below range (TBR; <3.9 mmol/L, < 70 mg/dL) and HbA1c: (a) baseline values and (b) changes after initiation of automated insulin delivery (AID). Points represent observed values. The blue line shows the fitted linear regression line, and the shaded band the corresponding 95% confidence interval for the trend line. r is the Pearson correlation coefficient.