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With nearly 300 blood sugar measurements a day, CGMs offer a new way to evaluate how well an individual is controlling his or her diabetes: time in range. This is expressed as a percentage of the time an individual’s blood sugar is within the target values. This metric, recently endorsed by the American Diabetes Association and by an international consensus committee, correlates nicely with control of diabetes and the implied development of complications such as vision loss, kidney problems, and low blood sugar excursions. Greater time in range has been linked to more stable glucose control, which should lead to fewer complications. - www.statnews.com