Diabetes Care, Vol 8, Issue 3 207-213, Copyright © 1985 by American Diabetes Association
Self-monitoring of capillary blood glucose: changing the performance of individuals with diabetes
RS Mazze, R Pasmantier, JA Murphy and H Shamoon
Standard reflectance meters were modified by the addition of memory chips
capable of storing 440 glucose determinations with corresponding time and
date. These modified reflectance meters (MR) were given to 20 individuals
with type I diabetes in an effort to determine the level of reliability and
accuracy they could achieve on a self-monitoring regimen. During a 6-wk
period these subjects measured their capillary blood glucose and recorded
the results in a logbook (LB). At 2-wk intervals they visited the clinic.
Data from the MR was offloaded onto an Apple IIe microcomputer (Apple
Computer, Inc., Cupertino, California) and presented to the subjects in a
graphic format, depicting the level of metabolic control over the previous
2 wk. The performance of subjects for the 6-wk period showed that they
averaged 7 omissions from the LB for every 100 MR recordings; 1 added value
in the LB for every 200 MR recordings; and 1 error in accurately copying
the test value for every 100 determinations. In comparison with subjects
who participated in an earlier study in which they were unaware of the
memory function of the reflectance meter, performance during the current
study improved in all categories. It was also observed that consistency in
reliable and accurate record keeping did not diminish throughout the study
period. Despite these positive changes in performance, no alteration in
glycemic control was found.