Dr Olav Nielssen

Senior Research Fellow
Psychiatry, Northern Clinical School

Telephone +61 2 9221 0688
Fax +61 2 9221 0544

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Selected publications

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Journals

  • Hayes, H., Kemp, R., Large, M., Nielssen, O. (2014). A 21-year retrospective outcome study of New South Wales forensic patients granted conditional and unconditional release. Australian and New Zealand Journal of Psychiatry, 48(3), 259-282. [More Information]
  • Large, M., Dall, B., Nielssen, O. (2014). Risk assessment for violence and self-harm in first episode psychosis and the need for early psychosis intervention services. Australian and New Zealand Journal of Psychiatry, 48(1), 94-99. [More Information]
  • Nielssen, O., Sara, G., Lim, Y., Large, M. (2013). Country of birth and hospital treatment for psychosis in New South Wales. Social Psychiatry and Psychiatric Epidemiology, 48(4), 613-620. [More Information]
  • Gupta, P., Mullin, K., Nielssen, O., Harris, A., Large, M. (2013). Do former substance users with psychosis differ in their symptoms or function from non-substance users? A systematic meta-analysis. Australian and New Zealand Journal of Psychiatry, 47(6), 524-537. [More Information]
  • Nielssen, O. (2013). Scientific and ethical problems with risk assessment in clinical practice. Australian and New Zealand Journal of Psychiatry, 47(12), 1198-1199. [More Information]
  • Large, M., Nielssen, O. (2013). Suicide ideas and immediate suicide risk. Psychiatry Research, 209(3), 746-746. [More Information]
  • Challis, S., Nielssen, O., Harris, A., Large, M. (2013). Systematic meta-analysis of the risk factors for deliberate self-harm before and after treatment for first-episode psychosis. Acta Psychiatrica Scandinavica, 127(6), 442-454. [More Information]
  • Large, M., Nielssen, O. (2012). Comment on risk assessment: predicting violence. Evidence-Based Mental Health, 15(1), 4-4. [More Information]
  • Mullin, K., Gupta, P., Compton, M., Nielssen, O., Harris, A., Large, M. (2012). Does giving up substance use work for patients with psychosis? A systematic meta-analysis. Australian and New Zealand Journal of Psychiatry, 46(9), 826-839. [More Information]
  • Nielssen, O., Large, M. (2012). Homicide in Psychiatric Hospitals in Australia and New Zealand. Psychiatric Services (online), 63(5), 500-503. [More Information]
  • Large, M., Nielssen, O. (2012). Infant homicide in the USA between 1940 and 2005. Journal of Epidemiology and Community Health, 66(7), 662-663. [More Information]
  • Nielssen, O., Malhi, G., Large, M. (2012). Mania, homicide and severe violence. Australian and New Zealand Journal of Psychiatry, 46(4), 357-363. [More Information]
  • Large, M., Paton, M., Sara, G., Wright, M., Nielssen, O. (2012). Measuring the distribution of the length of stay in acute psychiatric units. Journal of Psychiatric Intensive Care: psychiatric intensive care and low secure units, 8(2), 78-87. [More Information]
  • Large, M., Smith, G., Sara, G., Paton, M., Kedzior, K., Nielssen, O. (2012). Meta-analysis of self-reported substance use compared with laboratory substance assay in general adult mental health settings. International Journal of Methods in Psychiatric Research, 21(2), 134-148. [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2012). Minority report on violence risk assessment. The Psychiatrist, 36, 36-36.
  • Large, M., Nielssen, O., Babidge, N. (2012). Nails in the Brain. American Journal Of Forensic Medicine And Pathology, 33(4), e16-e16. [More Information]
  • Nielssen, O., Malhi, G., McGorry, P., Large, M. (2012). Overview of Violence to Self and Others During the First Episode of Psychosis. Journal Of Clinical Psychiatry, 73(5), e580-e587. [More Information]
  • Nielssen, O., Large, M. (2012). Risk factors for inpatient suicide do not translate into meaningful risk categories--all psychiatric inpatients are high-risk. Journal of Clinical Psychiatry, 73(7), 1034-1034. [More Information]
  • Large, M., Nielssen, O. (2012). Self-Enucleation of One Eye and Contra-Lateral Visual Loss. Orbit: the international journal on orbital disorders, oculoplastic and lacrimal surgery, 31(4), 206-206. [More Information]
  • Large, M., Nielssen, O. (2012). Self-enucleation: forget Freud and Oedipus, it's all about untreated psychosis. The British Journal of Ophthalmology, 96(8), 1056-1057. [More Information]
  • Yee, N., Large, M., Kemp, R., Nielssen, O. (2012). Severe non-lethal violence during psychotic illness. Australian and New Zealand Journal of Psychiatry, (6). [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2012). Suicide risk assessment: Reply to Draper. Australian and New Zealand Journal of Psychiatry, 46(4), 387-387. [More Information]
  • Gerard, A., De Moore, G., Nielssen, O., Large, M. (2012). Survivors of self-inflicted stab wounds. Australasian Psychiatry, 20(1), 44-48. [More Information]
  • Myles, N., Newall, H., Nielssen, O., Large, M. (2012). The association between cannabis use and earlier age at onset of schizophrenia and other psychoses: meta-analysis of possible confounding factors. Current Pharmaceutical Design, 18(32), 5055-5069. [More Information]
  • Large, M., Sharma, S., Compton, M., Slade, T., Nielssen, O. (2011). Cannabis Use and Earlier Onset of Psychosis: A Systematic Meta-analysis. Archives of General Psychiatry, 68(6), 555-561. [More Information]
  • Nielssen, O., O'Dea, J., Sullivan, D., Rodriguez, M., Bourget, D., Large, M. (2011). Child pornography offenders detected by surveillance of the Internet and by other methods. Criminal Behaviour and Mental Health, 21(3), 215-224. [More Information]
  • Nielssen, O., Yee, N., Millard, M., Large, M. (2011). Comparison of first-episode and previously treated persons with psychosis found NGMI for a violent offense. Psychiatric Services (online), 62(7), 759-764. [More Information]
  • Nielssen, O., Holmes-Walker, J., Large, M., Steinbeck, K. (2011). Congenital adrenal hyperplasia associated with mania and serious violence. Biological Psychiatry, 69(8), e21-e22. [More Information]
  • Nielssen, O., Large, M. (2011). Dangerous myths about suicide. Australasian Psychiatry, 19(3), 269-269. [More Information]
  • Nielssen, O., Bourget, D., Laajasalo, T., Liem, M., Labelle, A., Hakkanen-Nyholm, H., Koenraadt, F., Large, M. (2011). Homicide of Strangers by People with a Psychotic Illness. Schizophrenia Bulletin, 37(3), 572-579. [More Information]
  • Large, M., Nielssen, O. (2011). People with bipolar disorder and comorbid substance abuse are six times more likely to be convicted of violent crime than the general population. Evidence-Based Mental Health, 14(1), 17-17. [More Information]
  • Nielssen, O., Large, M. (2011). Potentially Lethal Suicide Attempts Using Sharp Objects During Psychotic Illness. Crisis-the Journal of Crisis Intervention and Suicide Prevention, 32(1), 37-42. [More Information]
  • Nielssen, O., Large, M. (2011). Removing the A2 Criteria Will Not Rescue Posttraumatic Stress Disorder. Biological Psychiatry, 70(5), e21-e23. [More Information]
  • Nielssen, O., Ryan, C., Large, M. (2011). Risk assessment and resource allocation. Australasian Psychiatry, 19(3), 270-270. [More Information]
  • Large, M., Sharma, S., Cannon, E., Ryan, C., Nielssen, O. (2011). Risk factors for suicide within a year of discharge from psychiatric hospital: a systematic meta-analysis. Australian and New Zealand Journal of Psychiatry, 45, 619-628. [More Information]
  • Large, M., Nielssen, O., Babidge, N. (2011). Self-inflicted intracranial self-injury. Journal of Emergencies, Trauma and Shock, 4(1), 147-147. [More Information]
  • Large, M., Smith, G., Sharma, S., Nielssen, O., Singh, S. (2011). Systematic review and meta-analysis of the clinical factors associated with the suicide of psychiatric in-patients. Acta Psychiatrica Scandinavica, 124(1), 1-12. [More Information]
  • Large, M., Ryan, C., Singh, S., Paton, M., Nielssen, O. (2011). The Predictive Value of Risk Categorization in Schizophrenia. Harvard Review of Psychiatry, 19(1), 25-33. [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2011). The validity and utility of risk assessment for inpatient suicide. Australasian Psychiatry, 19(6), 507-512. [More Information]
  • Large, M., Nielssen, O. (2011). Violence in first-episode psychosis: A systematic review and meta-analysis. Schizophrenia Research, 125(2-3), 209-220. [More Information]
  • Harris, A., Large, M., Redoblado Hodge, M., Nielssen, O., Anderson, J., Brennan, J. (2010). Clinical and cognitive associations with aggression in the first episode of psychosis. Australian and New Zealand Journal of Psychiatry, 44(1), 85-93. [More Information]
  • Ryan, C., Nielssen, O., Paton, M., Large, M. (2010). Clinical decisions in psychiatry should not be based on risk assessment. Australasian Psychiatry, 18(5), 398-403. [More Information]
  • Large, M., Babidge, N., Nielssen, O. (2010). Intracranial Self-Stabbing. American Journal Of Forensic Medicine And Pathology, 31(3), 1-5. [More Information]
  • Nielssen, O., Large, M. (2010). Rates of Homicide During the First Episode of Psychosis and After Treatment: A Systematic Review and Meta-analysis. Schizophrenia Bulletin, 36(4), 702-712. [More Information]
  • Nielssen, O., Glozier, N., Babidge, N., Reutens, S., Andrews, D., Gerard, A., Malhi, G. (2010). Suicide attempts by jumping and psychotic illness. Australian and New Zealand Journal of Psychiatry, 44(6), 568-573. [More Information]
  • Large, M., Nielssen, O. (2010). Suicide in Australia: meta-analysis of rates and methods of suicide between 1988 and 2007. Medical Journal of Australia, 192(8), 432-437. [More Information]
  • Large, M., Nielssen, O., Lackersteen, S., Smith, G. (2010). The Associations Between Infant Homicide, Homicide, and Suicide Rates: An Analysis of World Health Organization and Centers for Disease Control Statistics. Suicide and Life-Threatening Behavior: the official journal of the American Association of Suicidology, 40(1), 87-97. [More Information]
  • Nielssen, O., Elliott, G., Large, M. (2010). The reliability of evidence about psychiatric diagnosis after serious crime: part I. Agreement between experts. The Journal of the American Academy of Psychiatry and the Law, 38(4), 516-23. [More Information]
  • Large, M., Nielssen, O., Elliott, G. (2010). The reliability of evidence about psychiatric diagnosis after serious crime: part II. Agreement between experts and treating practitioners. The Journal of the American Academy of Psychiatry and the Law, 38(4), 524-530. [More Information]
  • Nielssen, O., Large, M., Westmore, B., Lackersteen, S. (2009). Child homicide in New South Wales from 1991 to 2005. Medical Journal of Australia, 190(1), 7-11. [More Information]
  • Large, M., Nielssen, O., Farooq, S., Glozier, N. (2009). Increasing rates of psychiatric publication from low-and middle-income countries. International Journal of Social Psychiatry, OnlineFirst Pub(doi:10.1177/0020764009102412), 1-10. [More Information]
  • Large, M., Nielssen, O., Elliott, G. (2009). Reliability of psychiatric evidence in serious criminal matters: fitness to stand trial and the defence of mental illness. Australian and New Zealand Journal of Psychiatry, 43(5), 446-52. [More Information]
  • Nielssen, O., Large, M. (2009). The Penrose hypothesis in 2004: patient and prisoner numbers are positively correlated in low-and-middle income countries but are unrelated in high-income countries. Psychology and Psychotherapy, 82(Pt 1), 113-119. [More Information]
  • Chung, R., Large, M., Starmer, G., Tattam, B., Paton, M., Nielssen, O. (2009). The reliability of reports of recent psychoactive substance use at the time of admission to an acute mental health unit. Journal of Dual Diagnosis, 5(3-4), 392-403.
  • Nielssen, O., Large, M. (2009). Untreated psychotic illness in the survivors of violent suicide attempts. Early Intervention in Psychiatry, 3(2), 116-122. [More Information]
  • Large, M., Nielssen, O. (2008). Factors associated with agreement between experts in evidence about psychiatric injury. Journal of the American Academy of Psychiatry and the Law, 36(4), 515-21. [More Information]
  • Large, M., Nielssen, O., Slade, T., Harris, A. (2008). Measurement and reporting of the duration of untreated psychosis. Early Intervention in Psychiatry, 2, 201-211.
  • Large, M., Nielssen, O., Ryan, C., Hayes, R. (2008). Mental health laws that require dangerousness for involuntary admission may delay the initial treatment of schizophrenia. Social Psychiatry and Psychiatric Epidemiology, 43(3), 251-256. [More Information]
  • Large, M., Ryan, C., Nielssen, O., Hayes, R. (2008). The danger of dangerousness: why we must remove the dangerousness criterion from our mental health acts. Journal of Medical Ethics, 34(12), 877-881. [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2008). Violence and commitment to treatment. Psychiatric Services, 59(5), 575-576. [More Information]
  • Nielssen, O., Westmore, B., Large, M., Hayes, R. (2007). Homicide during psychotic illness in New South Wales between 1993 and 2002. Medical Journal of Australia, 186(6), 301-4. [More Information]
  • Nielssen, O., Large, M., Ryan, C., Hayes, R. (2007). Legal implications of the increased risk of homicide and serious violence in the first episode of psychotic illness. Criminal Law Journal, 31, 287-294.
  • Riddell, S., Nielssen, O., Butler, T., Christie, M., Starmer, G. (2006). The Relationship Between Amphetamine Use, Crime and Psychiatric Disorder Among Prisoners in New South Wales. Psychiatry Psychology and Law, 13(2), 160-165.
  • Nielssen, O., Misrachi, S. (2005). Prevalence of psychoses on reception to male prisons in New South Wales. Australian and New Zealand Journal of Psychiatry, 39(6), 453-459. [More Information]
  • Bains, J., Nielssen, O. (2003). Combining depot antipsychotic medications with novel antipsychotics in forensic patients: a practice in search of a principle. Psychiatric Bulletin, 27(1), 14-16.
  • Bains, J., Nielssen, O. (2002). Combining depot antipsychotic medications with novel antipsychotics in forensic patients: a practice in search of a principle. Psychiatric Bulletin, 27(1), 14-16.

2014

  • Hayes, H., Kemp, R., Large, M., Nielssen, O. (2014). A 21-year retrospective outcome study of New South Wales forensic patients granted conditional and unconditional release. Australian and New Zealand Journal of Psychiatry, 48(3), 259-282. [More Information]
  • Large, M., Dall, B., Nielssen, O. (2014). Risk assessment for violence and self-harm in first episode psychosis and the need for early psychosis intervention services. Australian and New Zealand Journal of Psychiatry, 48(1), 94-99. [More Information]

2013

  • Nielssen, O., Sara, G., Lim, Y., Large, M. (2013). Country of birth and hospital treatment for psychosis in New South Wales. Social Psychiatry and Psychiatric Epidemiology, 48(4), 613-620. [More Information]
  • Gupta, P., Mullin, K., Nielssen, O., Harris, A., Large, M. (2013). Do former substance users with psychosis differ in their symptoms or function from non-substance users? A systematic meta-analysis. Australian and New Zealand Journal of Psychiatry, 47(6), 524-537. [More Information]
  • Nielssen, O. (2013). Scientific and ethical problems with risk assessment in clinical practice. Australian and New Zealand Journal of Psychiatry, 47(12), 1198-1199. [More Information]
  • Large, M., Nielssen, O. (2013). Suicide ideas and immediate suicide risk. Psychiatry Research, 209(3), 746-746. [More Information]
  • Challis, S., Nielssen, O., Harris, A., Large, M. (2013). Systematic meta-analysis of the risk factors for deliberate self-harm before and after treatment for first-episode psychosis. Acta Psychiatrica Scandinavica, 127(6), 442-454. [More Information]

2012

  • Large, M., Nielssen, O. (2012). Comment on risk assessment: predicting violence. Evidence-Based Mental Health, 15(1), 4-4. [More Information]
  • Mullin, K., Gupta, P., Compton, M., Nielssen, O., Harris, A., Large, M. (2012). Does giving up substance use work for patients with psychosis? A systematic meta-analysis. Australian and New Zealand Journal of Psychiatry, 46(9), 826-839. [More Information]
  • Nielssen, O., Large, M. (2012). Homicide in Psychiatric Hospitals in Australia and New Zealand. Psychiatric Services (online), 63(5), 500-503. [More Information]
  • Large, M., Nielssen, O. (2012). Infant homicide in the USA between 1940 and 2005. Journal of Epidemiology and Community Health, 66(7), 662-663. [More Information]
  • Nielssen, O., Malhi, G., Large, M. (2012). Mania, homicide and severe violence. Australian and New Zealand Journal of Psychiatry, 46(4), 357-363. [More Information]
  • Large, M., Paton, M., Sara, G., Wright, M., Nielssen, O. (2012). Measuring the distribution of the length of stay in acute psychiatric units. Journal of Psychiatric Intensive Care: psychiatric intensive care and low secure units, 8(2), 78-87. [More Information]
  • Large, M., Smith, G., Sara, G., Paton, M., Kedzior, K., Nielssen, O. (2012). Meta-analysis of self-reported substance use compared with laboratory substance assay in general adult mental health settings. International Journal of Methods in Psychiatric Research, 21(2), 134-148. [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2012). Minority report on violence risk assessment. The Psychiatrist, 36, 36-36.
  • Large, M., Nielssen, O., Babidge, N. (2012). Nails in the Brain. American Journal Of Forensic Medicine And Pathology, 33(4), e16-e16. [More Information]
  • Nielssen, O., Malhi, G., McGorry, P., Large, M. (2012). Overview of Violence to Self and Others During the First Episode of Psychosis. Journal Of Clinical Psychiatry, 73(5), e580-e587. [More Information]
  • Nielssen, O., Large, M. (2012). Risk factors for inpatient suicide do not translate into meaningful risk categories--all psychiatric inpatients are high-risk. Journal of Clinical Psychiatry, 73(7), 1034-1034. [More Information]
  • Large, M., Nielssen, O. (2012). Self-Enucleation of One Eye and Contra-Lateral Visual Loss. Orbit: the international journal on orbital disorders, oculoplastic and lacrimal surgery, 31(4), 206-206. [More Information]
  • Large, M., Nielssen, O. (2012). Self-enucleation: forget Freud and Oedipus, it's all about untreated psychosis. The British Journal of Ophthalmology, 96(8), 1056-1057. [More Information]
  • Yee, N., Large, M., Kemp, R., Nielssen, O. (2012). Severe non-lethal violence during psychotic illness. Australian and New Zealand Journal of Psychiatry, (6). [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2012). Suicide risk assessment: Reply to Draper. Australian and New Zealand Journal of Psychiatry, 46(4), 387-387. [More Information]
  • Gerard, A., De Moore, G., Nielssen, O., Large, M. (2012). Survivors of self-inflicted stab wounds. Australasian Psychiatry, 20(1), 44-48. [More Information]
  • Myles, N., Newall, H., Nielssen, O., Large, M. (2012). The association between cannabis use and earlier age at onset of schizophrenia and other psychoses: meta-analysis of possible confounding factors. Current Pharmaceutical Design, 18(32), 5055-5069. [More Information]

2011

  • Large, M., Sharma, S., Compton, M., Slade, T., Nielssen, O. (2011). Cannabis Use and Earlier Onset of Psychosis: A Systematic Meta-analysis. Archives of General Psychiatry, 68(6), 555-561. [More Information]
  • Nielssen, O., O'Dea, J., Sullivan, D., Rodriguez, M., Bourget, D., Large, M. (2011). Child pornography offenders detected by surveillance of the Internet and by other methods. Criminal Behaviour and Mental Health, 21(3), 215-224. [More Information]
  • Nielssen, O., Yee, N., Millard, M., Large, M. (2011). Comparison of first-episode and previously treated persons with psychosis found NGMI for a violent offense. Psychiatric Services (online), 62(7), 759-764. [More Information]
  • Nielssen, O., Holmes-Walker, J., Large, M., Steinbeck, K. (2011). Congenital adrenal hyperplasia associated with mania and serious violence. Biological Psychiatry, 69(8), e21-e22. [More Information]
  • Nielssen, O., Large, M. (2011). Dangerous myths about suicide. Australasian Psychiatry, 19(3), 269-269. [More Information]
  • Nielssen, O., Bourget, D., Laajasalo, T., Liem, M., Labelle, A., Hakkanen-Nyholm, H., Koenraadt, F., Large, M. (2011). Homicide of Strangers by People with a Psychotic Illness. Schizophrenia Bulletin, 37(3), 572-579. [More Information]
  • Large, M., Nielssen, O. (2011). People with bipolar disorder and comorbid substance abuse are six times more likely to be convicted of violent crime than the general population. Evidence-Based Mental Health, 14(1), 17-17. [More Information]
  • Nielssen, O., Large, M. (2011). Potentially Lethal Suicide Attempts Using Sharp Objects During Psychotic Illness. Crisis-the Journal of Crisis Intervention and Suicide Prevention, 32(1), 37-42. [More Information]
  • Nielssen, O., Large, M. (2011). Removing the A2 Criteria Will Not Rescue Posttraumatic Stress Disorder. Biological Psychiatry, 70(5), e21-e23. [More Information]
  • Nielssen, O., Ryan, C., Large, M. (2011). Risk assessment and resource allocation. Australasian Psychiatry, 19(3), 270-270. [More Information]
  • Large, M., Sharma, S., Cannon, E., Ryan, C., Nielssen, O. (2011). Risk factors for suicide within a year of discharge from psychiatric hospital: a systematic meta-analysis. Australian and New Zealand Journal of Psychiatry, 45, 619-628. [More Information]
  • Large, M., Nielssen, O., Babidge, N. (2011). Self-inflicted intracranial self-injury. Journal of Emergencies, Trauma and Shock, 4(1), 147-147. [More Information]
  • Large, M., Smith, G., Sharma, S., Nielssen, O., Singh, S. (2011). Systematic review and meta-analysis of the clinical factors associated with the suicide of psychiatric in-patients. Acta Psychiatrica Scandinavica, 124(1), 1-12. [More Information]
  • Large, M., Ryan, C., Singh, S., Paton, M., Nielssen, O. (2011). The Predictive Value of Risk Categorization in Schizophrenia. Harvard Review of Psychiatry, 19(1), 25-33. [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2011). The validity and utility of risk assessment for inpatient suicide. Australasian Psychiatry, 19(6), 507-512. [More Information]
  • Large, M., Nielssen, O. (2011). Violence in first-episode psychosis: A systematic review and meta-analysis. Schizophrenia Research, 125(2-3), 209-220. [More Information]

2010

  • Harris, A., Large, M., Redoblado Hodge, M., Nielssen, O., Anderson, J., Brennan, J. (2010). Clinical and cognitive associations with aggression in the first episode of psychosis. Australian and New Zealand Journal of Psychiatry, 44(1), 85-93. [More Information]
  • Ryan, C., Nielssen, O., Paton, M., Large, M. (2010). Clinical decisions in psychiatry should not be based on risk assessment. Australasian Psychiatry, 18(5), 398-403. [More Information]
  • Large, M., Babidge, N., Nielssen, O. (2010). Intracranial Self-Stabbing. American Journal Of Forensic Medicine And Pathology, 31(3), 1-5. [More Information]
  • Nielssen, O., Large, M. (2010). Rates of Homicide During the First Episode of Psychosis and After Treatment: A Systematic Review and Meta-analysis. Schizophrenia Bulletin, 36(4), 702-712. [More Information]
  • Nielssen, O., Glozier, N., Babidge, N., Reutens, S., Andrews, D., Gerard, A., Malhi, G. (2010). Suicide attempts by jumping and psychotic illness. Australian and New Zealand Journal of Psychiatry, 44(6), 568-573. [More Information]
  • Large, M., Nielssen, O. (2010). Suicide in Australia: meta-analysis of rates and methods of suicide between 1988 and 2007. Medical Journal of Australia, 192(8), 432-437. [More Information]
  • Large, M., Nielssen, O., Lackersteen, S., Smith, G. (2010). The Associations Between Infant Homicide, Homicide, and Suicide Rates: An Analysis of World Health Organization and Centers for Disease Control Statistics. Suicide and Life-Threatening Behavior: the official journal of the American Association of Suicidology, 40(1), 87-97. [More Information]
  • Nielssen, O., Elliott, G., Large, M. (2010). The reliability of evidence about psychiatric diagnosis after serious crime: part I. Agreement between experts. The Journal of the American Academy of Psychiatry and the Law, 38(4), 516-23. [More Information]
  • Large, M., Nielssen, O., Elliott, G. (2010). The reliability of evidence about psychiatric diagnosis after serious crime: part II. Agreement between experts and treating practitioners. The Journal of the American Academy of Psychiatry and the Law, 38(4), 524-530. [More Information]

2009

  • Nielssen, O., Large, M., Westmore, B., Lackersteen, S. (2009). Child homicide in New South Wales from 1991 to 2005. Medical Journal of Australia, 190(1), 7-11. [More Information]
  • Large, M., Nielssen, O., Farooq, S., Glozier, N. (2009). Increasing rates of psychiatric publication from low-and middle-income countries. International Journal of Social Psychiatry, OnlineFirst Pub(doi:10.1177/0020764009102412), 1-10. [More Information]
  • Large, M., Nielssen, O., Elliott, G. (2009). Reliability of psychiatric evidence in serious criminal matters: fitness to stand trial and the defence of mental illness. Australian and New Zealand Journal of Psychiatry, 43(5), 446-52. [More Information]
  • Nielssen, O., Large, M. (2009). The Penrose hypothesis in 2004: patient and prisoner numbers are positively correlated in low-and-middle income countries but are unrelated in high-income countries. Psychology and Psychotherapy, 82(Pt 1), 113-119. [More Information]
  • Chung, R., Large, M., Starmer, G., Tattam, B., Paton, M., Nielssen, O. (2009). The reliability of reports of recent psychoactive substance use at the time of admission to an acute mental health unit. Journal of Dual Diagnosis, 5(3-4), 392-403.
  • Nielssen, O., Large, M. (2009). Untreated psychotic illness in the survivors of violent suicide attempts. Early Intervention in Psychiatry, 3(2), 116-122. [More Information]

2008

  • Large, M., Nielssen, O. (2008). Factors associated with agreement between experts in evidence about psychiatric injury. Journal of the American Academy of Psychiatry and the Law, 36(4), 515-21. [More Information]
  • Large, M., Nielssen, O., Slade, T., Harris, A. (2008). Measurement and reporting of the duration of untreated psychosis. Early Intervention in Psychiatry, 2, 201-211.
  • Large, M., Nielssen, O., Ryan, C., Hayes, R. (2008). Mental health laws that require dangerousness for involuntary admission may delay the initial treatment of schizophrenia. Social Psychiatry and Psychiatric Epidemiology, 43(3), 251-256. [More Information]
  • Large, M., Ryan, C., Nielssen, O., Hayes, R. (2008). The danger of dangerousness: why we must remove the dangerousness criterion from our mental health acts. Journal of Medical Ethics, 34(12), 877-881. [More Information]
  • Large, M., Ryan, C., Nielssen, O. (2008). Violence and commitment to treatment. Psychiatric Services, 59(5), 575-576. [More Information]

2007

  • Nielssen, O., Westmore, B., Large, M., Hayes, R. (2007). Homicide during psychotic illness in New South Wales between 1993 and 2002. Medical Journal of Australia, 186(6), 301-4. [More Information]
  • Nielssen, O., Large, M., Ryan, C., Hayes, R. (2007). Legal implications of the increased risk of homicide and serious violence in the first episode of psychotic illness. Criminal Law Journal, 31, 287-294.

2006

  • Riddell, S., Nielssen, O., Butler, T., Christie, M., Starmer, G. (2006). The Relationship Between Amphetamine Use, Crime and Psychiatric Disorder Among Prisoners in New South Wales. Psychiatry Psychology and Law, 13(2), 160-165.

2005

  • Nielssen, O., Misrachi, S. (2005). Prevalence of psychoses on reception to male prisons in New South Wales. Australian and New Zealand Journal of Psychiatry, 39(6), 453-459. [More Information]

2003

  • Bains, J., Nielssen, O. (2003). Combining depot antipsychotic medications with novel antipsychotics in forensic patients: a practice in search of a principle. Psychiatric Bulletin, 27(1), 14-16.

2002

  • Bains, J., Nielssen, O. (2002). Combining depot antipsychotic medications with novel antipsychotics in forensic patients: a practice in search of a principle. Psychiatric Bulletin, 27(1), 14-16.

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