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http://diabetes.diabetesjournals.org/cgi/content/abstract/51/12/3353

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Diabetes 51:3353-3361, 2002
© 2002 by the American Diabetes Association, Inc.
 

The Rise of Childhood Type 1 Diabetes in the 20th Century

Edwin A.M. Gale

From the Department of Diabetes and Metabolism, Division of Medicine, University of Bristol, Bristol, U.K

The incidence of childhood type 1 diabetes increased worldwide in the closing decades of the 20th century, but the origins of this increase are poorly documented. A search through the early literature revealed a number of useful but neglected sources, particularly in Scandinavia. While these do not meet the exacting standards of more recent surveys, tentative conclusions can be drawn concerning long-term changes in the demography of the disease. Childhood type 1 diabetes was rare but well recognized before the introduction of insulin. Low incidence and prevalence rates were recorded in several countries over the period 1920–1950, and one carefully performed study showed no change in childhood incidence over the period 1925–1955. An almost simultaneous upturn was documented in several countries around the mid-century. The overall pattern since then is one of linear increase, with evidence of a plateau in some high-incidence populations and of a catch-up phenomenon in some low-incidence areas. Steep rises in the age-group under 5 years have been recorded recently. The disease process underlying type 1 diabetes has changed over time and continues to evolve. Understanding why and how this produced the pandemic of childhood diabetes would be an important step toward reversing it.

Copyright © 2002 by the American Diabetes Association.

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