2001 Volume 21 Issue 2 Pages 161-171
To clarify the advantage and limitation of epidemiologic study using the database in hospital information system (HIS), the investigation of patients with diabetes using Osaka University Hospital datawarehouse were performed and the results were compared with those of the investigation performed by Ministry of Health and Welfare. The results are following; the distribution of HbA1C in the investigation of Osaka University Hospital is consistent with that of Ministry of Welfare in the patient with high value, the age distribution is shifted to younger in Osaka University Hospital, the ratio between male and female contains bias in the investigation of Ministry of Welfare, the complication ratios in diabetes patients are more proper in the investigation of Osaka University Hospital than that of Ministry of Welfare, the treatment requiring high skill is selected more often in the investigation of Osaka University Hospital than that of Ministry of Welfare. We investigated the affection of severity, age and treatment on 1 year progress of HbA1C. The epidemiologic study using HIS database sometimes contains bias but is sometimes more proper than population base study. It has an advantage in dealing with detail data and follow up study. Furthermore, it can be perform by overwhelmingly less cost and labor.
