Why 'normal' on a lab report is the wrong target
Commercial laboratories print one reference range for LDL cholesterol next to your result. That range is built for the general population. It does not know your age, your blood pressure, your smoking status, your family history, or whether you have already had a cardiovascular event.
International cardiology guidelines (ESC/EAS, AHA/ACC) do not use a single LDL number. They use a risk-stratified target. A man with an LDL of 3.0 mmol/L and no other risk factors is in a very different situation from a 55-year-old with hypertension, diabetes, a smoking history, and a father who had a heart attack at 52. The same number can be reassuring in one and dangerously high in the other.
The result is a common pattern in Malaysian primary care: men with significant cardiovascular risk walk around with LDLs of 2.8 to 3.5 mmol/L, having been told their cholesterol is fine, when guideline-directed care would have aimed for under 1.8 mmol/L years earlier.
