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Open Access Publications from the University of California

Presence of diabetes risk factors in a large U.S. eighth-grade cohort

  • Author(s): Baranowski, T
  • Baranowski, J
  • Canada, A
  • Cullen, K
  • Jago, R
  • Missaghian, M
  • Thompson, D
  • Thompson, V
  • Walker, B
  • Cooper, DM
  • Bassin, S
  • Blackler, K
  • Culler, F
  • Ford, D
  • Galassetti, P
  • Harrell, J
  • McMurray, RG
  • Buse, J
  • Morris, MA
  • Kirby, K
  • Hirst, K
  • Edelstein, S
  • El Ghormli, L
  • Grau, S
  • Pyle, L
  • Linder, B
  • Marcovina, S
  • Kaufman, FR
  • Goran, M
  • Resnicow, K
  • et al.

© 2006 by the American Diabetes Association. OBJECTIVE: The study was conducted in 12 middle schools to determine the prevalence of diabetes, pre-diabetes, and diabetes risk factors in eighth-grade students who were predominantly minority and evaluate the feasibility of collecting physical and laboratory data in schools. RESEARCH DESIGN AND METHODS: Anthropometric measurements and fasting and 2-h post-glucose load blood draws were obtained from ∼ 1,740 eighth-grade students. RESULTS: Mean recruitment rate was 50% per school, 49% had BMI ≥85th percentile, 40.5% had fasting glucose ≥100 mg/dl, 0.4% had fasting glucose ≥126 mg/dl, and 2.0% had 2-h glucose ≥140 mg/dl and 0.1% ≥200 mg/dl. Mean fasting insulin value was 30.1 μU/ml, 36.2% had fasting insulin ≥30 μU/ml, and 2-h mean insulin was 102.1 μU/ml. Fasting and 2-h glucose and insulin values increased across BMI percentiles, and fasting glucose was highest in Hispanic and Native American students. CONCLUSIONS: There was a high prevalence of risk factors for diabetes, including impaired fasting glucose (≥100 mg/dl), hyperinsulinism suggestive of insulin resistance (fasting insulin ≥30 μU/ml), and BMI ≥85th percentile. These data suggest that middle schools are appropriate targets for population-based efforts to decrease overweight and diabetes risk.

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