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Table 2 Using Metabolic Syndrome or Severe Obesity to Predict Higher Insulin Resistance*

From: Utility of the modified ATP III defined metabolic syndrome and severe obesity as predictors of insulin resistance in overweight children and adolescents: a cross-sectional study

Predictor n OR (95% CI) p Sensitivity Specificity PPV
Metabolic Syndrome       
Ages 3–8 55 1.3 (0.6, 2.7) .70 49% 57% 36%
9–11 79 1.4 (0.7, 2.7) .41 54% 55% 37%
12–19 123 2.0 (1.2, 3.4) .006 54% 63% 42%
Severe Obesity       
Ages 3–8 80 0.9 (0.4, 1.9) .88 63% 33% 33%
9–11 65 3.0 (1.5, 5.9) .002 57% 69% 48%
12–19 116 2.0 (1.2, 3.3) .01 51% 66% 51%
  1. *Metabolic syndrome (MetS) by modified ATP III criteria; higher insulin resistance: upper tertile of homeostatis model (HOMA); severe obesity: BMI Z score ≥ 2.5.
  2. n = number in age group with MetS or severe obesity respectively; OR (95%CI): Odds ratio and 95% confidence interval.
  3. Sensitivity: % of those with higher insulin resistance who have predictor. Specificity: % of those without predictor who do not have higher insulin resistance. Positive predictive value (PPV): % of those with predictor who have higher insulin resistance.