title: Cancer patterns among children of Turkish descent in Germany: a study at the German Childhood Cancer Registry.
abstract: BACKGROUND
  Cancer risks of migrants might differ from risks of the indigenous population due to differences in socioeconomic status, life style, or genetic factors. The aim of this study was to investigate cancer patterns among children of Turkish descent in Germany.
  
  
  METHODS
  We identified cases with Turkish names (as a proxy of Turkish descent) among the 37,259 cases of childhood cancer registered in the German Childhood Cancer Registry (GCCR) during 1980-2005. As it is not possible to obtain reference population data for children of Turkish descent, the distribution of cancer diagnoses was compared between cases of Turkish descent and all remaining (mainly German) cases in the registry, using proportional cancer incidence ratios (PCIRs).
  
  
  RESULTS
  The overall distribution of cancer diagnoses was similar in the two groups. The PCIRs in three diagnosis groups were increased for cases of Turkish descent: acute non-lymphocytic leukaemia (PCIR 1.23; CI (95%) 1.02-1.47), Hodgkin's disease (1.34; 1.13-1.59) and Non-Hodgkin/Burkitt lymphoma (1.19; 1.02-1.39). Age, sex, and period of diagnosis showed no influence on the distribution of diagnoses.
  
  
  CONCLUSIONS
  No major differences were found in cancer patterns among cases of Turkish descent compared to all other cases in the GCCR. Slightly higher proportions of systemic malignant diseases indicate that analytical studies involving migrants may help investigating the causes of such cancers.
authors.affiliation: Dept. of Epidemiology & International Public Health, School of Public Health, Bielefeld University, PO Box 10 01 31, 33501 Bielefeld, Germany. jacob.spallek@uni-bielefeld.de
authors.forename: Jacob
authors.initials: J
authors.lastname: Spallek
authors.forename: Claudia
authors.initials: C
authors.lastname: Spix
authors.forename: Hajo
authors.initials: H
authors.lastname: Zeeb
authors.forename: Peter
authors.initials: P
authors.lastname: Kaatsch
authors.forename: Oliver
authors.initials: O
authors.lastname: Razum
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D009369:Neoplasms / Q000208:ethnology*; D012042:Registries; D014171:Transients and Migrants / Q000706:statistics & numerical data; D014421:Turkey / Q000208:ethnology