Methods and systems for analyzing glucose data measured from a person having diabetes

Methods and systems are disclosed analyzing a glucose level of a person having diabetes. The method, in at least one example, comprises receiving into a computing device a plurality of measured glucose values from a continuous glucose monitoring system coupled to a person having diabetes, analyzing the plurality of measured glucose values with a probability analysis tool on the computing device to determine a glucose threshold (gI0), and a boundary glucose value (gρ) at a probability threshold where the person having diabetes requires at least a predetermined insulin dose, and comparing, with the computing device, the boundary glucose value (gρ) to the glucose threshold (gI0), wherein if the boundary glucose value (gρ) is greater than the glucose threshold (gI0) then the computing device performs an alert on a user interface.