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Birth weight, early weight gain, and subsequent risk of type 1 diabetes: systematic review and meta-analysis

Thomas Harder1, Katharina Roepke, Natasha Diller

  • 1Clinic of Obstetrics, Division of Experimental Obstetrics, Charité-Universitätsmedizin Berlin, Berlin, Germany.

American Journal of Epidemiology
|April 14, 2009
PubMed

Insights

High birth weight and increased early weight gain are significant risk factors for developing type 1 diabetes. This systematic review and meta-analysis highlights the importance of monitoring infant growth for diabetes prevention strategies.

Area of Science:

  • Pediatrics
  • Endocrinology
  • Epidemiology

Background:

  • Previous research indicates a potential link between early life growth patterns and the subsequent risk of type 1 diabetes.
  • Understanding these associations is crucial for identifying individuals at higher risk and developing targeted interventions.

Purpose of the Study:

  • To systematically review and meta-analyze existing studies on the association between birth weight, weight gain in the first year of life, and the risk of type 1 diabetes.

Main Methods:

  • A systematic review and meta-analysis was conducted, pooling data from twelve studies comprising over 2.3 million individuals.
  • Odds ratios and 95% confidence intervals were calculated for type 1 diabetes risk associated with birth weight and early life weight gain.

Main Results:

  • High birth weight (over 4,000g) was significantly associated with an increased risk of type 1 diabetes (OR=1.17, 95% CI: 1.09, 1.26).
  • Each 1,000g increase in birth weight correlated with a 7% rise in type 1 diabetes risk.
  • Increased weight gain during the first year of life was consistently observed in individuals who developed type 1 diabetes compared to controls.

Conclusions:

  • High birth weight and accelerated weight gain in infancy are identified as significant risk factors for type 1 diabetes.
  • These findings underscore the importance of early life growth parameters in diabetes etiology and prevention.

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