Evaluation of diabetes care in the Otago region using a diabetes register, 1998-2003

Diabetes Res Clin Pract. 2006 Mar;71(3):345-52. doi: 10.1016/j.diabres.2005.08.006. Epub 2005 Sep 23.


Aim: To assess changes in diabetes care between 1998 and 2003 using data from the Otago Diabetes Register.

Methods: A regional diabetes register was established in 1998 to monitor diabetes care in the Otago region, New Zealand. Cross-sectional data relating to process and outcome measures were collected annually from participating general practices, 93% of general practitioners in the region. Generalised estimating equations with robust standard errors were used to test for trends in clinical measures across the study period.

Results: Process measures improved dramatically over the 6-year period. The proportion of patients prescribed ACE inhibitors and other antihypertensives increased markedly (32.3-52.4% and 13.2-27.1%, respectively) and both mean systolic and diastolic blood pressure decreased significantly (140.6-137.0 mmHg, p < 0.001 and 78.6-77.0 mmHg, p < 0.001, respectively). The proportion prescribed lipid lowering medication more than trebled (12.4-40.0%), while mean lipid levels improved significantly (total cholesterol: 5.94-5.21 mmol/l, p < 0.001, HDL-cholesterol: 1.23-1.28 mmol/l, p < 0.001 and triglycerides: 2.17-1.94 mmol/l, p < 0.001). Mean weight increased significantly, as did HbA1c in all treatment groups except type 2 diabetic patients treated with combined insulin and oral hypoglycaemic agents.

Conclusions: At a population level appreciable improvements in blood pressure and lipid control were observed, but not glycaemic control, probably due to insufficient attention to necessary lifestyle changes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Blood Pressure
  • Body Weight
  • Diabetes Mellitus / epidemiology*
  • Diabetes Mellitus / therapy*
  • Diabetes Mellitus, Type 1 / epidemiology
  • Diabetes Mellitus, Type 2 / epidemiology
  • Female
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • New Zealand / epidemiology
  • Patient Care Planning
  • Prevalence
  • Registries
  • Risk Factors