Diabetes Care, Vol 22, Issue 10 1612-1616, Copyright © 1999 by American Diabetes Association
Improvements in diabetic care as measured by HbA1c after a physician education project
RE Deichmann, E Castello, R Horswell and KE Friday
Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA. redeichmann@pol.net
OBJECTIVE: To measure the quality of diabetic care as indicated by HbA1c
testing frequency and HbA1c values and to demonstrate improvement in care
after an appropriate quality improvement intervention. RESEARCH DESIGN AND
METHODS: The quality improvement project used computerized claims and
laboratory data relating to HbA1c testing among the private practices of
nine physicians caring for diabetic Medicare patients. Nine indicators
evaluated three main areas: HbA1c testing frequency, HbA1c values, and
frequency of office visits. A quality improvement intervention consisting
of a physician component and a patient component was implemented. RESULTS:
There were 835 patients and 4,367 visits studied. After the intervention,
statistically significant improvements in HbA1c testing frequency and
values were noted. Rates of seized opportunities for testing HbA1c improved
from 17.7 to 33.9% (P < 0.0001). The percentage of patients with a
current HbA1c value improved from 31.3 to 47.6% (P < 0.0001). The median
HbA1c values fell from 8.5 to 7.8% (P < 0.006). Patients achieving good
or fair control (HbA1c < or = 8%) improved from 43.8 to 56.9% (P =
0.007). The median time between physician visits fell from 70 days to 60
days (P < 0.0001). CONCLUSIONS: The study revealed that HbA1c testing
was underused but that after a quality improvement initiative, a
significant increase in testing use could be achieved. The quality
improvement initiative also resulted in significant improvements in
glycemic control. The techniques and interventions used in this study could
be used to intervene in larger populations and practice settings to improve
medical care for diabetic patients.