Reliability of a simple and rapid glucose measuring device in conducting oral glucose tolerance tests

Area of Science:

• Clinical Chemistry
• Diagnostic Accuracy
• Endocrinology

Background:

• Accurate glucose monitoring is crucial for diagnosing metabolic disorders like diabetes.
• Oral glucose tolerance tests (OGTTs) are a standard diagnostic procedure.
• Evaluating the reliability of rapid glucose measurement devices is essential for clinical practice.

Purpose of the Study:

• To assess the diagnostic accuracy and reliability of the Reflomat/Reflotest-Glucose device compared to the GOD-Perid method.
• To determine the concordance rate of diagnoses derived from both glucose measurement methods during OGTTs.

Main Methods:

• 160 oral glucose tolerance tests (OGTTs) were conducted.
• Glucose levels were measured using the rapid Reflomat/Reflotest-Glucose device and the GOD-Perid method.
• Diagnostic categories (normal, suspect, diabetic) were compared between the two methods.

Main Results:

• A high degree of agreement (94.4%) was observed between the Reflomat/Reflotest-Glucose device and the GOD-Perid method.
• In 151 out of 160 patients, both methods yielded the same diagnostic conclusion.
• Discrepancies occurred in 5.6% of subjects, with Reflotest-Glucose tending towards more pathological results.

Conclusions:

• The Reflomat/Reflotest-Glucose device demonstrates high reliability for glucose measurement during OGTTs.
• The rapid device offers comparable diagnostic utility to the GOD-Perid method for diabetes screening.
• Further investigation is needed to clarify discrepancies in a small subset of patients.