Fig. 4

Equivalence testing on insulin sensitivity (SI) for each 6 h block for Cohort 1 and Cohort 2. The solid blue lines give equivalence ranges for 9.4% blood glucose error [58] and the blue dotted lines a smaller 7% error reported for the device used in highly controlled tests [105]. Equivalence is accepted if the 95% CI (bars) of bootstrapped percentage differences in median SI values is within the equivalence range, and rejected otherwise (×)