Table 2—

Pearson correlation coefficients between SSPG and surrogate measures of insulin resistance by degree of obesity

Normal weight
Overweight
Obese
r (95% CI)R2r (95% CI)R2r (95% CI)R2
Fasting glucose0.20 (0.07–0.33)*0.040.19 (0.04–0.33)0.040.40 (0.23–0.55)0.16
Fasting insulinlog0.33 (0.20–0.45)0.110.55 (0.43–0.65)0.300.56 (0.42–0.68)0.31
HOMA-IRlog0.36 (0.24–0.47)0.130.55 (0.43–0.65)0.300.60 (0.46–0.71)0.36
QUICKI−0.33 (−0.45 to −0.20)0.11−0.54 (−0.64 to −0.42)0.29−0.61 (−0.72 to −0.48)0.37
I-AUClog0.69 (0.61–0.76)0.480.72 (0.64–0.79)0.520.69 (0.58–0.78)0.48
  • *

    * P < 0.01;

  • P < 0.05; all other P values are <0.001.