Table 1:

User classes for the false-negative predictions of late-night hypoglycemia. A user may belong to more than one class. The prevalence values are estimated from approximately 1000 users.

False-Negative Classes	Description	Prevalence
Class #1	SG measurement above 180 mg/dL at midnight, sliding below 70 mg/dL between 3 am and 6 am	45%
Class #2	SG trajectory largely outside of 1- band from recent nights	56%
Class #3	SG trajectory exhibited U or W shaped bounce in the middle of night	33%
Class #4	SG trajectory not fitting above categories	15%