Neutrophil/Lymphocyte ratio: what your result means.

Ratio of neutrophils to lymphocytes; a marker of systemic inflammation. Neutrophil/Lymphocyte ratio is measured by blood test as part of the Inflammation panel in the HodieLabs Health Blueprint.

Why Neutrophil/Lymphocyte ratio matters

NLR integrates two CBC components into a powerful prognostic ratio, increasingly used in oncology. Elevated NLR predicts poor outcomes in COVID-19, cardiovascular disease, and multiple cancers.

Associated risks when out of range: Elevated NLR (>3.0) is an independent predictor of cardiovascular events and cancer mortality. Reflects the balance between innate (neutrophil) and adaptive (lymphocyte) immunity.

Evidence basis

The HodieLabs Evidence-Based Clinical Library classifies Neutrophil/Lymphocyte ratio as an strong evidence-tier biomarker. Its reference ranges come from a published authority standard rather than from observational optimisation targets. The standard used here is Emerging inflammation and immunosenescence literature; NLR <2.0 associated with healthier immune balance and lower CVD risk. Where relevant clinical outcomes are noted on this page, they reflect the guideline literature referenced below.

Evidence-based reference ranges

The HodieLabs Evidence-Based Clinical Library interprets Neutrophil/Lymphocyte ratio against published clinical authority standards, never arbitrary "optimal" ranges. Measured in ratio:

Clinical interpretation

• NLR integrates two CBC components into a powerful prognostic ratio, increasingly used in oncology.
• Elevated NLR predicts poor outcomes in COVID-19, cardiovascular disease, and multiple cancers.
• Can be transiently elevated by acute stress, exercise, and corticosteroids. Interpret in context.

What improves it: the evidence-based levers

• Calculated from CBC differential, no additional test needed
• NLR >3.0 warrants investigation for subclinical inflammation, infection, or malignancy

Recommended testing frequency: Annual, as part of a comprehensive panel. Single markers are always interpreted in context.

How Neutrophil/Lymphocyte ratio testing works at HodieLabs

Neutrophil/Lymphocyte ratio is measured in every Health Blueprint at our Melbourne Preventative Health & Longevity Clinic, interpreted by a doctor against the guideline-cited ranges above and tracked over time through your HodieLabs membership.

References

1. Emerging inflammation and immunosenescence literature; NLR <2.0 associated with healthier immune balance and lower CVD risk.

This page is general information from the HodieLabs Evidence-Based Clinical Library, not medical advice. Speak with your GP about what testing and care is appropriate for you.