Joan Lee Parkes

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BACKGROUND Traditionally, people with diabetes keep handwritten blood glucose (BG) logs. Although a useful, and a necessary component of diabetes management, logbooks can be incomplete, inaccurate and illegible, which may lead to faulty analyses of BG trends associated with meals, medications and daily activities. Ascensia, WinGLUCOFACTS, Professional(More)
BACKGROUND This glucose clamp study assessed the performance of an electrochemical continuous glucose monitoring (CGM) system for monitoring levels of interstitial glucose. This novel system does not require use of a trocar or needle for sensor insertion. METHOD Continuous glucose monitoring sensors were inserted subcutaneously into the abdominal tissue(More)
BACKGROUND This study evaluated performance and product labeling of CONTOUR® USB, a new blood glucose monitoring system (BGMS) with integrated diabetes management software and a universal serial bus (USB) port, in the hands of untrained lay users and health care professionals (HCPs). METHOD Subjects and HCPs tested subject's finger stick capillary blood(More)
BACKGROUND The Ascensia CONTOUR System (Bayer HealthCare LLC, Elkhart, IN) is a new blood glucose (BG) monitoring system (BGMS) that uses glucose dehydrogenase chemistry and that combines low sample volume, fast response time, an auto-control marking feature, and an auto-calibration function in a small package. METHODS The system was evaluated at four(More)
BACKGROUND This study evaluated the accuracy of Contour(®) Next (CN; Bayer HealthCare LLC, Diabetes Care, Whippany, NJ) compared with five blood glucose monitoring systems (BGMSs) across a wide range of clinically occurring blood glucose levels. SUBJECTS AND METHODS Subjects (n=146) were ≥ 18 years and had type 1 or type 2 diabetes. Subjects' glucose(More)
We evaluated the clinical accuracy, precision, and ease-of-use of a whole blood referenced glucose meter system that uses a 10-test disk (Ascensia Confirm Blood Glucose Monitoring System, Bayer Healthcare LLC). The meter system was tested by 100 subjects and eight health care professionals at two separate diabetes centers. Meter blood glucose test results,(More)
OBJECTIVE To assess differences between estimated blood glucose values and those measured on a blood glucose meter and the impact on self-care behavior in type 2 diabetes. RESEARCH DESIGN AND METHODS Subjects ≥18 years with type 2 diabetes (N = 297) attending a Taking Control of Your Diabetes conference were asked questions about diabetes management and(More)
OBJECTIVE The objectives of this study were 1) to construct new error grids (EGs) for blood glucose (BG) self-monitoring by using the expertise of a large panel of clinicians and 2) to use the new EGs to evaluate the accuracy of BG measurements made by patients. RESEARCH DESIGN AND METHODS To construct new EGs for type 1 and type 2 diabetic patients, a(More)
BACKGROUND The Parkes error grid, which was developed in 1994, presented performance zones for blood glucose (BG) monitors with borders that were not mathematically specified at the time the grid was published. METHODS In this article, we (1) review the history of the Parkes error grid, (2) present the never-before-published exact coordinates and(More)
BACKGROUND This study evaluated the performance of the DIDGET® blood glucose monitoring system (BGMS) in the hands of its intended users: children, teens, and young adults with diabetes. METHODS Finger stick capillary blood samples were tested in duplicate by subjects (with parent/guardian assistance, if needed) and health care professionals using the(More)