Haematology · Oncology

EUTOS Long-Term Survival (ELTS) Score for CML calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

elts age years

years

Allowed range: 18–100 years

elts spleen cm below costal margin

Allowed range: 0–15.75 in

elts blasts percent

Allowed range: 0–30 %

elts platelets ×10⁹ l

×10⁹/L

Allowed range: 10–2000 ×10⁹/L

Result

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Clinical inputs

elts age yearsAccepted range: 18 to 100
elts spleen cm below costal marginAccepted range: 0 to 40
elts blasts percent (%)Accepted range: 0 to 30
elts platelets ×10⁹ l (×10⁹/L)Accepted range: 10 to 2000

Primary source

Pfirrmann M et al. Prognosis of long-term survival considering disease-specific death in patients with chronic myeloid leukemia. Leukemia. DOI: 10.1038/leu.2015.261. PMID: 26416462. Scope: chronic-phase CML; ELTS = 0.0025×(age/10)³ + 0.0615×spleen + 0.1052×blasts + 0.4104×(platelets/1000)^−0.5; low ≤1.5680, intermediate 1.5680–2.2185, high >2.2185. (2016)

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