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Table 2—

Hypoglycemia detection and false-alarm rates with varying “alarm” settings for reference glucose ≤60 mg/dl

Alarm setting (mg/dl)Sensitivity/false-alarm rate
GW2BCGMS originalCGMS modified
60 23/51% 36/63% 49/58% 
80 59/67% 67/68% 84/64% 
100 84/80% 85/76% 100/75% 
120 92/85% 91/83% 100/84% 
Alarm setting (mg/dl)Sensitivity/false-alarm rate
GW2BCGMS originalCGMS modified
60 23/51% 36/63% 49/58% 
80 59/67% 67/68% 84/64% 
100 84/80% 85/76% 100/75% 
120 92/85% 91/83% 100/84% 

* False-alarm rate provides the percentage of time at each alarm setting that when the device would alarm the actual serum glucose would be >60 mg/dl.

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