The 90th percentile for triglyceride levels has been historically noted to be approximately 2.8 mmol/L (250 mg/dL) in the US. Because hypertriglyceridaemia is related to insulin resistance, its prevalence is expected to continue to increase in industrialised countries. In the US and globally, the incidences of overweight/obese patients, and associated metabolic syndrome, and diabetes mellitus are increasing. These are high-risk groups, especially those with central obesity. The incidence of chylomicronaemia is low. The Lipid Research Program prevalence study found 1.79 per 10,000 individuals had triglyceride levels >22.6 mmol/L (2000 mg/dL). However, the incidence of this condition may also be increasing in association with the increasing prevalence of overweight or obese patients. Data from the National Health and Nutrition Examination Survey show that from 2001 to 2006, 32% of the adult population in the US had triglyceride levels <1.7 mmol/L (>150 mg/dL). Overall 14% had borderline high, 16% had high, and approximately 2% had very high triglyceride levels.
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