Hasenclever IPS Calculator

Hasenclever IPS Calculator for Hematology. Higher IPS was associated with lower freedom from progression in the historical development cohorts. Any displayed five-year percentages refer to that historical endpoint and treatment era, not a current individualized overall-survival forecast.

For shared guidance on choosing a tool and documenting results, read the clinical calculator workflow.

How this calculator works

The original advanced Hodgkin lymphoma IPS adds seven adverse baseline factors. The lymphocyte factor is present when the absolute count is below 600 cells/microliter OR lymphocytes are below 8% of the WBC count. Those two alternatives contribute only one point.

When to use this calculator

Use to describe baseline prognosis in the advanced-stage setting for which the index was developed. It is not a stand-alone treatment selection rule and does not replace response assessment.

Inputs used

Albumin
Hemoglobin
Sex
Stage
Age
White blood cell count
Lymphocyte count

Clinical interpretation

Higher IPS was associated with lower freedom from progression in the historical development cohorts. Any displayed five-year percentages refer to that historical endpoint and treatment era, not a current individualized overall-survival forecast.

Worked example

A 45-year-old man with stage IV disease and albumin 3.4 g/dL has four listed factors. If WBC is 12000 and lymphocytes 900 cells/microliter, the lymphocyte percentage is 7.5%, adding the fifth factor. With hemoglobin and WBC not meeting their adverse thresholds, IPS is 5, not 4.

Limitations and safety notes

Modern treatment and interim response assessment alter prognosis. Do not choose an intensified regimen solely from the total. Correctly distinguish absolute counts from percentages; an absolute count above 600 does not negate the percentage alternative.

Frequently asked questions

Can an absolute lymphocyte count of 900 still earn the lymphocyte point?

Yes, when it represents less than 8% of the total WBC count. The two criteria are alternatives.

References

Hasenclever and Diehl. Prognostic score for advanced Hodgkin disease. 1998: https://pubmed.ncbi.nlm.nih.gov/9819449/

Editorial review and citation methodology

Maintained by the Quick Medical Calculator Editorial Team. Content record date: September 7, 2026. A content date is not evidence of independent clinical review. Individual clinical sign-off is not recorded on this page.

Prefer original validation studies for scoring systems and prediction tools.
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