Acute leukaemia in children with Down syndrome: a population-based Nordic study

Research output: Contribution to journalArticle

Abstract

To determine the epidemiology and outcome of children with Down syndrome (DS) diagnosed with acute leukaemia in the Nordic countries, data registered in the Nordic Society of Paediatric Haematology and Oncology (NOPHO) population-based leukaemia registry were analysed. Of 3494 children with acute leukaemia diagnosed between July 1984 and December 2001, 136 patients (3.9%) with DS were identified. 2.1% of the children with acute lymphoid leukaemia (ALL) and 14.0% of the children with acute myeloid leukaemia (AML) had DS. In ALL, DS patients had similar age and sex distribution and no major differences in blood counts compared with non-DS children. None of the DS patients had T cell leukaemia. Outcome was inferior to that of non-DS children and treatment results did not improve over time. In AML, DS patients showed a significant female predominance and all but one were <5 years old. DS patients with AML had significantly lower platelet and white blood cell counts and two-thirds were type M7 as according to the French-American-British classification. None of the patients <5 years of age had typical AML cytogenetic aberrations. Outcome was far better in the DS group. DS patients treated for AML after 1992 had an excellent outcome (probability of event-free survival, 83 +/- 6%). The high proportion of female DS patients with AML is unexplained. The differing treatment results in AML versus ALL need further evaluation and represent a challenge for the coming years.

Details

Authors
  • B Zeller
  • G Gustafsson
  • E Forestier
  • J Abrahamsson
  • N Clausen
  • Jesper Heldrup
  • L Hovi
  • G Jonmundsson
  • S O Lie
  • A Glomstein
  • H Hasle
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Hematology

Keywords

  • children, epidemiology, Down syndrome, acute lymphoid leukaemia, acute myeloid leukaemia
Original languageEnglish
Pages (from-to)797-804
JournalBritish Journal of Haematology
Volume128
Issue number6
Publication statusPublished - 2005
Publication categoryResearch
Peer-reviewedYes