Introduction: Previous research has found that the percentage of US adults with diabetes achieving a glycated hemoglobin (HbA1c) target of <7.0% with currently available treatments has been fairly constant from 2003 to 2010, remaining at just over 50% [1]. The objective of this study was to compare the most recent data (2011-2014) with earlier data to track progress on HbA1c target achievement, for both the general target of <7.0% and inferred individualized targets based on age and the presence of complications.
Methods: Data from 2677 adults with self-reported diabetes from the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2014 were examined to determine the percentage of adults who achieved HbA1c targets of <7% and an individualized target based on age and comorbidities. National estimates are reported by using weights that account for the complex sampling design of the NHANES.
Results: The percentage of people with diabetes and HbA1c <7.0% slightly declined from 52.2% (95% CI 48.7-55.7%) to 50.9% (95% CI 47.2-54.7%) between the two most recent waves of data. Achievement of individualized targets declined from 69.8% (95% CI 66.5-73.0%) to 63.8% (95% CI 60.1-67.5%). The percentage with HbA1c >9.0% increased from 12.6% (95% CI 10.5-14.8%) to 15.5% (95% CI 12.9-18.2%). Achievement of individualized targets varied by age group and presence of comorbidities, but exhibited similar trends as general target achievement.
Conclusions: Despite the development of many new medications to treat diabetes during the past decade, the proportion of patients achieving glycemic control targets has not improved.
Funding: Intarcia Therapeutics.
Keywords: Diabetes; Glycemic control; Trends; United States.