The study included 161 people with an average age of 44 and each needing several insulin injections per day. Researchers randomly selected participants to use traditional blood sugar checking equipment and prick their fingers at least four times a day to measure blood sugar levels. Those who didn’t have the traditional method had to use a device that measured blood sugar continuously through a thin filament under the skin on the stomach. The filament had a separate unit that would be kept in the pocket to alert the user when sugar levels were too high or too low.
The patients used each method for 6 months and had a 4 month “washout period” where they received no assisted treatment between each round. The study lasted a total of 16 months.