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Comparing patient generated blood glucose diary records with meter memory in type 2 diabetes
J E Given1, M J O'Kane2, V E Coates3
1Institute of Nursing and Health Research, University of Ulster, Coleraine Campus, Cromore Road, Coleraine, County Londonderry BT52 1SA, UK.
Diabetes Research and Clinical Practice
|April 3, 2014
Summary
Self-monitoring of blood glucose (SMBG) records from meters and diaries show similar error levels to previous studies. Diary records may not meet the same standards as meter records for some patients with type 2 diabetes.
Area of Science:
- Endocrinology
- Diabetes Management
- Clinical Research
Background:
- Accurate self-monitoring of blood glucose (SMBG) is crucial for type 2 diabetes management.
- Discrepancies between meter and diary SMBG records can impact treatment decisions.
- Understanding SMBG record agreement is essential for patient education and data interpretation.
Purpose of the Study:
- To evaluate the agreement between blood glucose meter and handwritten diary records for self-monitoring of blood glucose (SMBG) over one year in type 2 diabetes patients.
- To identify patterns and predictors of errors in SMBG record keeping.
Main Methods:
- Analysis of meter and diary SMBG records from 95 individuals with type 2 diabetes.
- Statistical methods including Pearson's correlation, structural equation modeling, paired t-tests, and multiple regression were employed.
- Assessment of over-reporting, under-reporting, concordance, and overall reliability of SMBG records.
Main Results:
- Mean over-reporting was 8.4% and under-reporting was 10.0%, with 83.5% concordance and 71.3% overall reliability.
- The initial week of SMBG monitoring showed significantly higher error rates and lower reliability compared to subsequent weeks.
- Most concordance errors were not clinically significant, but those that were tended to occur within the first three months.
Conclusions:
- Error levels in SMBG record keeping are comparable to those observed in type 1 diabetes.
- A learning curve for SMBG record keeping is suggested, particularly in the initial monitoring period.
- Diary SMBG records may not consistently meet the accuracy standards required for blood glucose meters for some individuals.
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