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. 2023 Apr;201(2):285-289.
doi: 10.1111/bjh.18617. Epub 2022 Dec 19.

Epidemiology of haemophagocytic lymphohistiocytosis at the population level in Germany

David Kuron  1 , Jakob Christoph Voran  2 , Friedrich Alexander von Samson-Himmelstjerna  3 , Claudia Baldus  1 , Ulrich Kunzendorf  3 , Kevin Schulte  3 , Benedikt Kolbrink  3
Affiliations

Epidemiology of haemophagocytic lymphohistiocytosis at the population level in Germany

David Kuron et al. Br J Haematol. 2023 Apr.

Abstract

We retrospectively analysed all German inpatient cases of haemophagocytic lymphohistiocytosis (HLH) from 2014 to 2020 to describe the epidemiology, clinical course, and underlying diseases of 4065 HLH patients. The age-standardized incidence rate of HLH in Germany was 0.52/100 000 people in 2014 and steadily increased by 10% per year to 0.97/100 000 in 2020 (mean 0.70/100 000). Inpatient deaths related to HLH increased from 0.84/1 000 000 people in 2014 to 2.32/1 000 000 people in 2020, caused by rising numbers of older HLH patients. Overall, HLH is more frequent than previously expected and incidence as well as HLH-related deaths increased significantly.

Keywords: epidemiology; haemophagocytic lymphohistiocytosis (HLH); macrophage activation syndrome (MAS).

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