hs-CRP / HDL Ratio

The ratio of hs-CRP to HDL, a combined inflammation and heart-risk marker.

Last reviewedJune 16, 2026

Calculated

sample type

Not applicable (calculated)

blood needed

~7 days

results in app

Same as its component tests

best timing

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On this page

Why test Reference ranges What you'll learn What affects it How testing works Sources FAQ

In short

The hs-CRP to HDL ratio is a calculated value, not a separate blood test. It combines high-sensitivity CRP, a marker of low-grade inflammation, with HDL cholesterol, the protective cholesterol that also has anti-inflammatory effects.

The formula is: hs-CRP ÷ HDL cholesterol, using the units reported by the lab.

Heart & Cholesterol

Reviewed against DGKL reference practice.

Why test this?

Inflammation and low HDL both contribute to cardiovascular risk. Combining them aims to capture both in one number, and the ratio has been studied as a marker of inflammatory and metabolic risk.

A higher ratio reflects more inflammation relative to protective cholesterol and has been linked with greater cardiometabolic risk. A lower ratio is more favourable.

What is a normal result?

Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.

There is no firmly established healthy reference range for the hs-CRP to HDL ratio. It is used in research as a relative risk marker, where higher values suggest greater inflammatory and metabolic risk. Interpret as a trend with a clinician rather than against a fixed cutoff.

Ranges are guidance and vary by lab and assay, aligned with DGKL practice. Always read your result against your own lab's reference interval.

What insights will this test give you?

A combined read on inflammation and protective cholesterol.
Context for cardiometabolic risk beyond either marker alone.
A trend to follow as lifestyle changes lower inflammation or raise HDL.

What can affect this result?

What can skew the result

CRP rises with any infection, injury or recent illness and is non-specific, so it should be measured when you are well. HDL can be affected by alcohol, smoking and some medications. Recent illness can raise CRP and inflate the ratio for reasons unrelated to cardiovascular risk.

Best interpreted with

Read with its components, hs-CRP and HDL cholesterol, and alongside the full lipid panel and other cardiovascular risk factors.

How is this tested?

Sample

Calculated

Blood needed

Not applicable (calculated)

Method

Calculated ratio

Best timing

Same as its component tests

Sources. The evidence behind this

StatPearls: C-Reactive Protein

Pearson TA et al. Markers of Inflammation and Cardiovascular Disease. Circulation

Common questions

What does a high or low CRP/HDL mean? A higher ratio points to more inflammation relative to your HDL level. A lower ratio suggests less inflammation compared with your HDL.

Do I need to fast for this test? Fasting is not required. If your clinician asked for a fasting lipid panel, follow their instructions.

What can affect my result? Illness, recent vaccines, hard workouts, smoking, alcohol, dehydration, pregnancy, and medicines like statins or steroids can shift results.

How often should I test it? Many people recheck every few months when adjusting lifestyle or treatment. Your clinician can suggest a timing that fits your risk.

How long do results take? Results are usually ready in about 7 days.

What should I discuss with my clinician? Review your hs-CRP, full lipid panel, family history, symptoms, and habits. Ask how this ratio fits your overall heart-risk plan.

Which Aniva panels include this marker?

Core

Your annual full-body baseline with more than 100 biomarkers, included in your Aniva membership.