title: The frequency of XYY and XXY men among criminal offenders.
abstract: Among 1,040 consecutive male criminals remitted for mental examination nine had the karyotype 47,XYY, one 48,XXYY and eleven 47,XXY. The types of crime in the XYY men were much like those in the XXY men, the proportion of sexual crimes possibly being greater than among other criminal offenders. The reasons for these findings are discussed.
mesh_terms: D003415:Crime; D005387:Finland; D006801:Humans; D007713:Klinefelter Syndrome / Q000453:epidemiology*; D008297:Male; D012729:Sex Chromosome Aberrations / Q000453:epidemiology*; D012742:Sex Offenses; D014997:XYY Karyotype / Q000453:epidemiology*