Diabetes technology

Driving-Related Glucose Patterns Among Older Adults with Type 1 Diabetes

Diabetes Technol TherPublished Observational study within a clinical trial run-in

Authors' conclusion

Our findings support a glucose "above-5-to-drive" recommendation to avoid CGM-detected hypoglycemia among older drivers, including for prolonged drives, and highlight the importance of active CGM low-glucose alerts to prevent hypoglycemia during driving.

Study context

Population
Older drivers with T1D using sensor-augmented insulin pumps; median age 69 years (IQR 65–72), diabetes duration 37 years (20–45)trips by 23 drivers
Participants
618 participants
Exposure
Pre-trip continuous glucose monitoring (CGM) >5.0 mmol/L vs ≤5.0 mmol/L
  • Pre-trip CGM >5.0 mmol/Ln = 577 trips
  • Pre-trip CGM ≤5.0 mmol/Ln = 41 tripsreference
Outcome
Trips with CGM <3.9 mmol/L during driving
Methodological details2-week run-in, sensor-augmented insulin pumps
  • 2-week run-in
  • Sensor-augmented insulin pumps

Main finding

As reported in the abstract

Pre-trip CGM >5.0 mmol/L

0

events

Pre-trip CGM ≤5.0 mmol/L

11

events

Observational data: associations, not effects.

Further findings

Trip duration

Trip duration, median (IQR)
10 min (5-21)
Trips <30 min
535; 87%
Trips >90 min
9 (1.5%)
Trips >120 min
3 (0.5%)

CGM alerts during driving

CGM alerts
71 alerts during 60 trips (10%)
Alerts unrelated to hypoglycemia
54 of 71 (76%)

Original publication

Driving-Related Glucose Patterns Among Older Adults with Type 1 Diabetes. Diabetes Technol Ther. Published 1 March 2024. doi:10.1089/dia.2023.0416

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