Clinical tool

Follicular Lymphoma International Prognostic Index (FLIPI) Calculator

Five factors: age, stage, haemoglobin, LDH and number of nodal areas

Updated: 27 October 20261 min read1 reference

Follicular Lymphoma International Prognostic Index (FLIPI).

This calculator needs JavaScript; the formula and its interpretation are in the text of this page.

An aid for clinicians; it does not replace clinical judgement, local protocols or the drug label. Double-check every result before prescribing.

Use

FLIPI was derived from more than 4,000 patients before the rituximab era [1]. In follicular lymphoma, the decision to treat depends more on tumour burden and symptoms (e.g., GELF criteria) than on FLIPI; asymptomatic patients with low tumour burden are usually observed.

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References

1 reference
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Numbers in the text, such as [1], refer to these sources. Sources with a “Study card” button are summarised in the site’s evidence library.

  1. 1
    Follicular lymphoma international prognostic indexSolal-Céligny P, Roy P, Colombat P, et al · Blood · 2004;104:1258-65

This page is based on reputable scientific sources and was last updated on 27 October 2026. The content of this website is for educational and informational purposes only and does not replace consultation, diagnosis or treatment by a specialist physician. Consult your treating physician about any treatment decision.