Diabetes Care, Vol 20, Issue 4 512-515, Copyright © 1997 by American Diabetes Association
Incidence and prevalence of diabetes in children aged 0-14 years in Manitoba, Canada, 1985-1993
JF Blanchard, H Dean, K Anderson, A Wajda, S Ludwig and N Depew
Manitoba Diabetes Education Programme, Manitoba Department of Health, Winnipeg, Canada.
OBJECTIVE: To estimate the incidence and prevalence of type I diabetes
among Manitoba children aged 0-14 years from 1985-1993. RESEARCH DESIGN AND
METHODS: The Manitoba Diabetes Database (a population-based database of
individuals diagnosed with diabetes based on Manitoba's health insurance
system) was used to estimate the annual incidence of diabetes for the years
1985-1993 and the point prevalence of diabetes at 31 March 1993 for
Manitoba children aged 0-14 years. The Diabetes Education Resource for
Children and Adolescents program database was used to correct incidence and
prevalence rates for ascertainment using the two-source capture-recapture
method. RESULTS: The overall ascertainment rate of the Manitoba Diabetes
Database was 95% for incident cases and 93% for prevalent cases. The
average annual incidence was 20.4 per 100,000 for children aged 0-14 years.
The annual incidence appears to be stable for all age-groups 0-14 years
over the past decade. The point prevalence of diabetes among children was
120.4 per 100,000. CONCLUSIONS: The incidence of type I diabetes in
children aged 0-14 years in Manitoba is higher than reported previously in
other urban regions of Canada, but similar to population-based estimates
from Prince Edward Island. The incidence appears stable in Manitoba over
the past decade even in the 0-4 year age-group. The Manitoba Diabetes
Database appears to be a highly accurate population-based source of data on
the epidemiology of diabetes in children.