Studies prove very good precision and accuracy for Contour and Contour USB

Accurate and easy-to-operate blood glucose meters by Bayer

Leverkusen, – People with diabetes and their diabetes teams have to rely on their blood glucose meter. New studies(1,2) show the very good precision and accuracy of the plasma calibrated Contour as well as of the plasma calibrated Contour®USB.

“Contour and Contour USB are accurate and easy-to-operate blood glucose meters”, summarizes Prof. Stephan Matthaei, Diabetes Center, Quakenbrück, Germany. Correlation with hexokinase laboratory method was very good (r= 0.99) and all measurements were in Zone A of the Clarke error grid. The performance data of the plasma calibrated device comply with the specifications of international ISO standard 15197.(3)

Method:
Precision: Low, normal and high control solutions were used to test precision. 20 measurements were performed with three meters calibrated to plasma using control solutions by trained personnel.
RiliBÄK Accuracy: Average values of the precision measurements in the series (n=20) of low, medium and high control solutions were compared with the target value of control solutions and with the ± 11% target range.
Comparative Accuracy to lab: Measurements were performed under routine conditions between Contour/Contour USB and hexokinase laboratory method with 100 type 1 and type 2 diabetics.

Results for Contour in detail:
Precision: Average CV for low, normal, high control was 1.9%, 1.5%, 1.5%. Average overall CV was 1.6%.
RiliBÄK Accuracy: With low, normal and high control solutions, deviations from the target value were between -2.3 and 2.9%, well within permissible relative deviation of the individual value of the control sample measurement (± 11%).
Comparative Accuracy: Resultant regression analysis was r=0.99. All measurements were in zone A of the Clarke error grid analysis.

Results for Contour USB in detail:
Precision: Average CV for low, normal, high control was 2.6%, 1.8%, 1.8%. Average overall CV was 2.1%.
RiliBÄK Accuracy: With low, normal and high control solutions, deviations from the target value were between 1.2 and 4.5%, well within permissible relative deviation of the individual value of the control sample measurement (± 11%).
Comparative Accuracy: Resultant regression analysis was r=0.99. All measurements were in zone A of the Clarke error grid analysis.

About Bayer HealthCare Diabetes Care
Bayer HealthCare, Diabetes Care as part of the Medical Care Division supports customers in 100 countries and stands in a long tradition of leading the way in diabetes care product innovation since the introduction of CLINITEST reagent tablets in 1941. The face of diabetes care was changed in 1969 when the first portable blood glucose meter and test strips were introduced. Certain features of Bayer’s blood glucose monitors such as No Coding™ technology make diabetes management easier. Today, Bayer HealthCare Diabetes Care offers an unparalleled choice in diabetes management systems and comprehensive support including education, tools and resources designed to simplify life with diabetes.
Bayer HealthCare Diabetes Care global headquarters is located in Tarrytown, New York, in the United States and operates as part of Bayer HealthCare LLC, a member of the worldwide Bayer HealthCare group. The Headquarters for the region Europe-MERA is located in Basel as part of Bayer Consumer Care AG, in Basel.

About Bayer HealthCare
The Bayer Group is a global enterprise with core competencies in the fields of health care, nutrition and high-tech materials. Bayer HealthCare, a subsidiary of Bayer AG, is one of the world’s leading, innovative companies in the healthcare and medical products industry and is based in Leverkusen, Germany. The company combines the global activities of the Animal Health, Bayer Schering Pharma, Consumer Care and Medical Care divisions. Bayer HealthCare’s aim is to discover and manufacture products that will improve human and animal health worldwide. Find more information at www.bayerhealthcare.com.


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(1) C. Lemke, S. Matthaei, Evaluation Study of Plasma Calibrated Bayer’s Contour USB Glucose Meter, poster presentation at Diabetes Technology (DTS) Meeting in Bethesda, Maryland, USA, November 12, 2010
(2) C. Lemke, S. Matthaei, Evaluation Study of Plasma Calibrated Bayer’s Contour Glucose Meter, poster presentation at Diabetes Technology (DTS) Meeting in Bethesda, Maryland, USA, November 12, 2010
(3) In addition, specifications of the new guideline of the Germany medical association (RiliBÄK = Richtlinie der Bundesärztekammer) guideline were clearly met.