Very high and increasing incidence of type 1 diabetes mellitus in Newfoundland and Labrador, Canada

L A Newhook1, M Grant, S Sloka

  • 1Department of Pediatrics, Memorial University, St. John's, Newfoundland and Labrador, Canada. lnewhook@mun.ca

Pediatric Diabetes
|January 29, 2008
PubMed

Insights

Newfoundland and Labrador has one of the world's highest rates of type 1 diabetes mellitus (T1DM) in children. This study found the incidence of T1DM is increasing in children aged 0-14 years.

Area of Science:

  • Pediatric Endocrinology
  • Epidemiology
  • Public Health

Background:

  • Type 1 diabetes mellitus (T1DM) is a significant global health concern, particularly in pediatric populations.
  • Understanding regional incidence patterns is crucial for resource allocation and public health interventions.

Purpose of the Study:

  • To determine the incidence of T1DM in children aged 0-14 years in Newfoundland and Labrador (NL).
  • To analyze trends and demographic variations in T1DM incidence within this population.

Main Methods:

  • A prospective and retrospective cohort study was conducted from 1987 to 2005.
  • Case ascertainment utilized multiple sources, with verification through the capture-recapture technique.

Main Results:

  • A total of 732 children aged 0-14 years were diagnosed with T1DM during the study period.
  • The overall incidence was 35.08 per 100,000 children, with a significant linear increase of 0.78 per 100,000 annually.
  • Boys aged 0-4 years showed a higher incidence (31.61 per 100,000) compared to girls (19.05 per 100,000).

Conclusions:

  • Newfoundland and Labrador exhibits one of the highest T1DM incidences globally.
  • The rising trend in T1DM incidence over the 19-year study period highlights an ongoing public health challenge.
Abstract

Related Concept Videos

Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1 diabetes is an...
Type I Diabetes II: Pathophysiology01:26

Type I Diabetes II: Pathophysiology

Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
Type II Diabetes I: Introduction01:26

Type II Diabetes I: Introduction

Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, in which target tissues such as the liver, muscle, and adipose tissue respond poorly to insulin. It is also associated with inadequate compensatory insulin secretion, where pancreatic β-cells fail to produce sufficient insulin. Together, these abnormalities lead to persistent hyperglycemia.EtiologyT2DM develops through a complex interaction of genetic predisposition and environmental or...
Diabetes Mellitus: Overview and Type I Subtype01:22

Diabetes Mellitus: Overview and Type I Subtype

Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes Mellitus: Type 2 and Gestational

Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
Type I Diabetes III: Clinical Manifestations01:19

Type I Diabetes III: Clinical Manifestations

Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...