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Association Between Management of Continuous Subcutaneous Basal Insulin Administration and HbA1C
Harry Rubin-Falcone1, Ian Fox1, Emily Hirschfeld2
1Department of Electrical Engineering and Computer Science, Division of Computer Science and Engineering, University of Michigan, Ann Arbor, MI, USA.
Journal of Diabetes Science and Technology
|April 15, 2021
Summary
Pediatric patients with type 1 diabetes who frequently adjust their daily basal insulin doses show improved glycemic control. However, the extent of these adjustments did not impact outcomes in either pediatric or adult patients.
Area of Science:
- Endocrinology
- Metabolic Diseases
- Diabetes Management
Background:
- Type 1 diabetes management involves complex insulin adjustments.
- Quantifying the impact of self-managed insulin algorithm changes on glycemic control is crucial.
- Previous studies have not precisely measured the effect of insulin dose adjustments on HbA1c.
Purpose of the Study:
- To quantify the association between the frequency and magnitude of basal insulin dose adjustments and glycemic control (HbA1c).
- To investigate self-management behaviors in insulin pump users with type 1 diabetes.
- To compare these associations in pediatric and adult patient populations.
Main Methods:
- Retrospective cohort study of 114 adults and 212 pediatric patients with type 1 diabetes.
- Basal insulin dose data analyzed from the Glooko-Diasend database over a 90-day period before HbA1c measurement.
- Linear mixed-effects models used to assess the relationship between daily basal insulin dose changes and HbA1c levels.
Main Results:
- Patients frequently adjusted basal insulin doses daily (72%-94% IQR).
- In pediatric patients, more frequent daily adjustments were associated with lower HbA1c (P=.001), independent of hypoglycemia rates.
- No significant association was found between HbA1c and the frequency or magnitude of adjustments in adult patients.
Conclusions:
- Frequent modification of basal insulin profiles in pediatric patients with type 1 diabetes is linked to better glycemic outcomes.
- The magnitude of daily basal insulin adjustments did not correlate with improved HbA1c in either pediatric or adult cohorts.
- Findings highlight the importance of adaptive insulin management strategies in pediatric type 1 diabetes.
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