Diabetes Care, Vol 21, Issue 4 546-548, Copyright © 1998 by American Diabetes Association
The prevalence of diabetes in a Swedish population of 280,411 inhabitants. A report from the Skaraborg Diabetes Registry
B Berger, G Stenstrom, YF Chang and G Sundkvist
Department of Medicine, Skovde Central Hospital, Sweden.
OBJECTIVE: To estimate the prevalence of known diabetes in a Swedish county
(Skaraborg) and to evaluate capture-recapture methods for validation of the
diabetes prevalence. RESEARCH DESIGN AND METHODS: Four sources were used to
find known diabetic patients: 1) the Skaraborg Diabetes Registry (SDR), a
case-finding inventory, 2) an administrative hospital registry, 3) a
registry for the retinopathy screening program, and 4) a pharmacy
prescription inventory. The capture-recapture method was applied to various
combinations of sources to determine the prevalence of diabetes. RESULTS:
The completeness of the SDR was 88.4 +/- 1.3%, indicating a diabetes
prevalence of 3.20 +/- 0.08%. When the SDR was not used as one of the
sources, the estimated prevalence varied between 2.2 and 4.5%. CONCLUSIONS:
A case-finding registry is important in reliably estimating the prevalence
of diabetes.