Cardiology

Atherogenic Index of Plasma (AIP)

Calculates cardiovascular risk using the Triglyceride/HDL ratio.

Parameters

mg/dL
mg/dL

Atherogenic Index of Plasma (AIP) Result

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FormulaAIP = log₁₀(TG / HDL). Note: Inputs in mg/dL are converted to molar concentrations (mmol/L) prior to the calculation.

Clinical Pearls

AIP correlates closely with LDL particle size (an inversely proportional relationship). A high AIP indicates a higher proportion of small, dense LDL particles, which are highly atherogenic.

Limitations

While a powerful prognostic marker, it is not yet incorporated into all major societal guidelines (like the ACC/AHA pooled cohort equations) for prescribing statins.