Total cholesterol is a combination of high-density lipoproteins (HDL), low-density lipoproteins (LDL), and very low-density lipoproteins (VLDL). Total blood cholesterol is measured enzymatically in a series of coupled reactions. A description of the procedures for the total cholesterol measurement in NHANES has been published by NCHS.
Blood cholesterol levels less than 200 mg/dL are considered desirable. Levels of 240 mg/dL or above are considered high. Levels of 200-239 mg/dL are considered borderline.
Individuals who take medication to lower their serum cholesterol levels and whose measured total serum cholesterol levels are below the cut-offs for high and borderline high cholesterol, are not defined as having high or borderline high cholesterol, respectively.
This Indicator uses Age-Adjustment Groups: