Toth - Figure 17 - Diagnosis – LDL-C levels Text
At what level of serum LDL cholesterol should physicians suspect that the probability of FH is ≥80%? As shown in the Figure, this probability exists when the serum LDL cholesterol level is:
≥250 mg/dL in a patient aged ≥30 years;
≥220 mg/dL for patients aged 20-29 years;
≥190 mg/dL in patients <20 year.
If a patient fulfills one of these criteria in the specified age range, then the probability of FH exceeds 80%. J Clin Lipidol. 2011; 5(6).