title: "Suicide shall cease to be a crime": suicide and undetermined death trends 1970-2000 before and after the decriminalization of suicide in Ireland 1993.
abstract: BACKGROUND
  Suicide is criminalized in more than 100 countries around the world. A dearth of research exists into the effect of suicide legislation on suicide rates and available statistics are mixed.
  
  
  METHODS
  This study investigates 10,353 suicide deaths in Ireland that took place between 1970 and 2000. Irish 1970-2000 annual suicide data were obtained from the Central Statistics Office and modelled via a negative binomial regression approach. We examined the effect of suicide legislation on different age groups and on both sexes. We used Bonferroni correction for multiple modelling. Statistical analysis was performed using the R statistical package version 3.1.2. The coefficient for the effect of suicide act on overall suicide deaths was -9.094 (95 % confidence interval (CI) -34.086 to 15.899), statistically non-significant (p = 0.476). The coefficient for the effect suicide act on undetermined deaths was statistically significant (p < 0.001) and was estimated to be -644.4 (95 % CI -818.6 to -469.9).
  
  
  CONCLUSIONS
  The results of our study indicate that legalization of suicide is not associated with a significant increase in subsequent suicide deaths. However, undetermined death verdict rates have significantly dropped following legalization of suicide.
authors.affiliation: Department of Psychiatry, Letterkenny General Hospital, Letterkenny, Co. Donegal, Ireland. mugtabasulman@yahoo.co.uk.
authors.forename: Mugtaba
authors.initials: M
authors.lastname: Osman
authors.affiliation: School of Mathematical Sciences, Insight: the National Centre for Data Analytics, University College Dublin, Belfield, Dublin, Ireland.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Parnell
authors.affiliation: Department of Psychiatry, Letterkenny General Hospital, Letterkenny, Co. Donegal, Ireland.
authors.forename: Clifford
authors.initials: C
authors.lastname: Haley
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002423:Cause of Death / Q000639:trends*; D002648:Child; D002675:Child, Preschool; D003415:Crime; D005260:Female; D006801:Humans; D007223:Infant; D007494:Ireland; D008297:Male; D008875:Middle Aged; D013405:Suicide / Q000331:legislation & jurisprudence / Q000639:trends*; D055815:Young Adult
keywords: Criminal Law; Ethics; Ireland; Legislation; Suicide