title: Intraindividual differences between two simultaneous glucose measurement systems in type 2 diabetic patients.
abstract: OBJECTIVE
  Continuous glucose measurement systems are an established tool to support diabetes therapy. Because of different technical solutions one can propose different potential limitations in daily practice. So we tried to identify the accuracy of two different devices head to head in daily routine to point out individual characteristics.
  
  
  METHODS
  We included 24 patients with type 2 diabetes mellitus to wear the GlucoDay and the MiniMed continuous glucose measurement system at the same time for 48 h. We examined the mean differences in simultaneous glucose measurements, the confidence intervals were calculated by standard methods based on the t-distribution.
  
  
  RESULTS
  Comparison of glucose levels of both continuous glucose measurement systems showed that there was a tendency for higher glucose levels measured by the GlucoDay device. These differences were dependent on the time of the day. The absolute difference between two consecutive glucose measurements was higher for the GlucoDay system what means a somehow higher fluctuation of the GlucoDay measurements.
  
  
  CONCLUSIONS
  The differences in intraindividual comparison of the GlucoDay and the MiniMed continuous glucose measurement systems in type 2 diabetic patients may be taken into account when using different systems for detection of nocturnal hypoglycemia and the observation of trends used for therapeutic decisions.
authors: Department of Internal Medicine I, Paracelsus Medical University Clinic Salzburg, Müllner Hauptstrasse 48, 5020, Salzburg, Austria. l.stechemesser@salk.at
authors: Lars
authors: L
authors: Stechemesser
authors: Agnes
authors: A
authors: Hammerschmied
authors: Brigitta
authors: B
authors: Gappmayer
authors: Mynda
authors: M
authors: Schreuer
authors: Raimund
authors: R
authors: Weitgasser
mesh_terms: D001786:Blood Glucose / Q000032:analysis*; D015190:Blood Glucose Self-Monitoring / Q000295:instrumentation*; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000175:diagnosis*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008875:Middle Aged; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D001786:Blood Glucose