Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Differences between homicide and filicide offenders; results of a nationwide register-based case-control study | BioMed Central BMC Psychiatry Research article Differences between homicide and filicide offenders results of a nationwide register-based case-control study Hanna Putkonen 1 Ghitta Weizmann-Henelius1 Nina Lindberg2 Markku Eronen1 and Helina Hakkanen3 4 Address 1Vanha Vaasa hospital PO Box 13 65381 Vaasa Finland 2Helsinki University Central Hospital Department of Adolescent Psychiatry PO Box 590 00029 HUCH Hesinki Finland 3Department of Psychology PO Box 9 00014 University of Helsinki Helsinki Finland and 4National Bureau of Investigation Forensic Laboratory PO Box 285 01301 Vantaa Finland Email Hanna Putkonen - Ghitta Weizmann-Henelius - Nina Lindberg - Markku Eronen - Helina Hakkanen - Corresponding author Open Access Published 29 May 2009 Received 8 January 2009 BMC Psychiatry 2009 9 27 doi 1471-244X-9-27 Accepted 29 May 2009 This article is available from http 1471-244X 9 27 2009 Putkonen et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract__ Background Filicide the killing of one s child is an extraordinary form of homicide. It has commonly been associated with suicide and parental psychiatric illness. In the research on filicide nationwide studies with comparison groups specific perpetrator subgroups and assessment of possible risk factors have been called for. The purpose of the current study was to provide all that. Methods In this nationwide register-based case-control study all filicide offenders who were in a forensic psychiatric examination in Finland 1995-2004 were .