Parameters:
(1) serum triglyceride concentration in mg/dL
(2) fasting glucose in mg/dL
TyG product =
= LN((serum triglyceride) * (glucose) / 2)
where:
• The values reported in Table 1 of Simental-Mendia do not match this equation. They do match LN((serum triglyceride) * (glucose)) / 2
• Subsequent authors give TgG values similar to those given by the first equation.
Interpretation:
• The higher the TyG the greater the risk for insulin resistance.
• Zhang et al reported a TyG >= 8.5 was associated with NAFLD.
• Nor et al reported a TyG >= 8.52 as the optimal cutoff for insulin resistance in pediatric patients.
• To get this cut-off with a fasting glucose of 99 mg/dL, the triglyceride is 99 mg/dL.
• Simental-Mendia et al found the product to be sensitive but to have a low specificity.
