Scans per day as predictors of optimal glycemic control in people with type 1 diabetes mellitus using flash glucose monitoring: what number of scans per day should raise a red flag?
Autor
Sebastian-Valles, Fernando
Martínez-Alfonso, Julia
Arranz Martin, Jose Alfonso
Jiménez-Díaz, Jessica
Hernando Alday, Iñigo
Navas-Moreno, Victor
Armenta Joya, Teresa
Fandiño García, Maria del Mar
Román Gómez, Gisela Liz
Lander Lobariñas, Luis Eduardo
Martinez de Icaya, Purificación
Sampedro-Nuñez, Miguel Antonio
Martínez-Vizacaíno, Vicente
Marazuela, Mónica
Resumen
Aims: This study aimed to determine the minimum frequency of flash glucose monitoring (FGM) scans necessary for optimal glycemic control in patients with type 1 diabetes (T1D). Methods: Data were collected from 692 patients (47.5% female, with a median age of 47.4 years) who used FGM systems daily and recorded their clinical variables and device data. Results: Logistic regression models showed that performing more than 12 scans per day was associated with improved T1D control (OR = 4.22, p < 0.001) and a reduction in HbA1c (7.6 vs 7.0%, 60–53 mmol/mol p < 0.001). However, those performing less than 6 scans showed no improvement in HbA1c (7.9 vs 7.8%, 63–61 mmol/mol p = 0.514). Thirteen daily scans were determined as the optimal cutoff point for predicting optimal glycemic control using a maximally selected rank algorithm. Significant reductions were observed in mean glucose (< 0.001), coefficient of variation (< 0.001), HbA1c (< 0.001), and an increase in TIR (< 0.001) in patients who performed more than 12 daily scans. Conclusions: The results suggest that a higher frequency of daily scans by T1D patients using FGM systems leads to improved chronic glycemic control. The minimum recommended frequency for optimal control is 13 scans per day, and more than 6 daily scans are needed to improve HbA1c. © 2023, The Author(s).
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