title: Suicide among immigrant population in Norway: a national register-based study.
abstract: To investigate differences in suicide risk among immigrant population in Norway compared with native Norwegians, with respect to associated country group of origin.
  
  
  
  Based on the entire national population, a nested case-control design was adopted using Norwegian national longitudinal registers to obtain 23 073 suicide cases having occurred in 1969-2012 and 373 178 controls. Odds ratios (ORs) for suicide were estimated using conditional logistic regression analysis adjusting for socio-economic factors.
  
  
  
  Compared with native Norwegians, suicide risk was significantly lower in first- and second-generation immigrants but higher in Norwegian-born with one foreign-born parent and foreign-born individuals with at least one Norwegian-born parent. When stratifying data by country group of origin, first-generation immigrants had lower ORs in most of the strata. Subjects born in Asia and in Central and South America with at least one Norwegian-born parent had a significantly higher risk of suicide. The observed results remained mostly unchanged in the analyses controlled for socio-economic status.
  
  
  
  Suicide risk is lower in first- and second-generation immigrants but higher in subjects born in Norway with one foreign-born parent and those born abroad with at least one Norwegian-born parent, with notable differences by country group of origin.
authors.affiliation: National Centre for Suicide Research and Prevention, Faculty of Medicine, University of Oslo, Oslo, Norway.
authors.forename: Q
authors.identifier: 0000-0001-9622-4364
authors.initials: Q
authors.lastname: Puzo
authors.affiliation: National Centre for Suicide Research and Prevention, Faculty of Medicine, University of Oslo, Oslo, Norway.
authors.forename: L
authors.initials: L
authors.lastname: Mehlum
authors.affiliation: National Centre for Suicide Research and Prevention, Faculty of Medicine, University of Oslo, Oslo, Norway.
authors.forename: P
authors.initials: P
authors.lastname: Qin
mesh_terms: D016022:Case-Control Studies; D054242:Emigrants and Immigrants / Q000523:psychology / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D009664:Norway / Q000453:epidemiology; D016017:Odds Ratio; D012042:Registries; D012307:Risk Factors; D012959:Socioeconomic Factors; D013405:Suicide / Q000706:statistics & numerical data*
keywords: immigrants; immigration background; population study; registry data; suicide risk