Correlation at fingerstick blood glucose measurements with GlucoWatch biographer glucose results in young subjects with type 1 diabetes

Citation
Sk. Garg et al., Correlation at fingerstick blood glucose measurements with GlucoWatch biographer glucose results in young subjects with type 1 diabetes, DIABET CARE, 22(10), 1999, pp. 1708-1714
Citations number
15
Categorie Soggetti
Endocrynology, Metabolism & Nutrition","Endocrinology, Nutrition & Metabolism
Journal title
DIABETES CARE
ISSN journal
01495992 → ACNP
Volume
22
Issue
10
Year of publication
1999
Pages
1708 - 1714
Database
ISI
SICI code
0149-5992(199910)22:10<1708:CAFBGM>2.0.ZU;2-8
Abstract
OBJECTIVE - The purpose of this study was to compare measurements of glucos e obtained via iontophoretic extraction with the GlucoWatch automatic gluco se biographer (Cygnus, Inc., Redwood City CA) with capillary blood glucose values that were determined 1) in a controlled outpatient clinic setting an d 2) in a home setting. RESEARCH DESIGN AND METHODS - There were 76 GlucoWatch biographers used on 28 different young adults (21 women and 7 men) with type 1 diabetes (age 30 .9 +/- 6.9 years and duration of diabetes 18.4 +/- 8.1 years [mean +/- SD]) in a controlled outpatient clinic setting. Some subjects participated on m ultiple days. Subjects wore two GlucoWatch biographers, each on the forearm (ventral aspect). Comparisons were made to HemoCue blood glucose analyzer (Aktiebolgat Leo, Helsingborg, Sweden) capillary blood glucose measurements , In addition, Gluco-Watch biographers (one each day for 3 consecutive days ) were used by 12 subjects (8 women, 4 men) in a home setting. Comparisons were made to capillary blood glucose values determined using the One Touch Profile meter (Johnson & Johnson, Nem Brunswick, NJ). RESULTS - GlucoWatch biographer glucose values correlated well with capilla ry blood glucose values determined using the HemoCue analyzer in the clinic setting (r = 0.90, 1,554 paired data points) and using the One Touch Profi le meter in the home setting (r = 0.85, 204 paired data points). When 36 su bjects wore two biographers simultaneously, the correlation between the two biographers was r = 0.94. The error grid analysis demonstrated that >96% o f biographer glucose values determined in the clinic or home setting were i n the clinically acceptable A and B regions. CONCLUSIONS - This study confirms the accuracy and precision of glucose val ues as determined using the GlucoWatch biographer in clinic and home settin gs.