Related Experiment Video
Updated: Sep 13, 2025

Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
Long-Term Patterns in Automated Insulin Delivery and Carbohydrate Announcement: A 24-Month Follow-Up
Estelle Godard1, Alfred Penfornis1,2, Coralie Amadou1,2
1Department of Endocrinology and Diabetes, Sud-Francilien Hospital, Corbeil-Essonnes, France.
Abstract:
We evaluated long-term (24 months) consistency in carbohydrate counting and meal announcements among Control-IQ users using two parameters: auto-bolus percentage (i.e., automatic correction boluses divided by total boluses) and daily carbohydrate announcement (DCA). In this single-center retrospective cohort study (October 2021-October 2024), we analyzed trends in auto-bolus percentage-alongside DCA and metabolic control-and its associations with age, sex, DCA, and time in range (TIR) using mixed-effects linear models. Among 2751 person-quarters (57% women, mean age 37 years), the mean auto-bolus percentage was 61% and increased by 0.4% per quarter (P < 0.001). DCA declined from 132 to 100 g/day, while TIR slightly decreased from 61% to 58%. Auto-bolus percentage was inversely associated with age, TIR, and DCA, with the latter association strengthening over time. The modest change in TIR suggests sustained effectiveness of automated insulin delivery despite decreasing carbohydrate reporting-likely reflecting adaptive user behavior.
Related Concept Videos
Insulin Formulations: Types and Delivery
Short-acting insulins are divided into...
Insulin: Dosing Regimen and Adverse Effects
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
Diabetes Mellitus: Type 2 and Gestational
Holter Monitor: 24-Hour Monitoring
Glucose Homeostasis: Pancreatic Islets and Insulin Secretion
Insulin and C-peptide are...

