I am an adjunct research fellow at UNSW Sydney, and a postdoctoral researcher at the University of Edinburgh. My research interests include investigating outcomes for children and young people who attend mental health services or are in contact with child protection services. I am also interested in more broadly understanding risk factors and developmental pathways to mental illness, particularly for psychosis and self-harm. I use large-scale administrative record-linkage data and methods from life-course epidemiology to investigate these questions.
Carpendale EJ; Green MJ; White SLJ; Williams KE; Tzoumakis S; Watkeys OJ; Harris F; O'Hare K; Carr VJ; Laurens KR, 2025, 'Promoting effective transitions: Primary school social–emotional competencies predict secondary school reading and numeracy achievement', British Journal of Educational Psychology, 95, pp. 496 - 512, http://dx.doi.org/10.1111/bjep.12735
Journal articles | 2025
Carpendale EJ; Green MJ; White SLJ; Williams KE; Tzoumakis S; Watkeys OJ; Harris F; O'Hare K; Laurens KR, 2025, 'Middle childhood social-emotional competencies mediate the effects of school-entry literacy and numeracy skills on secondary school reading and numeracy attainment', Learning and Individual Differences, 124, http://dx.doi.org/10.1016/j.lindif.2025.102778
Journal articles | 2025
Green MJ; Watkeys OJ; O’Hare K; Tzoumakis S; Laurens KR; Dean K; Harris F; Carr VJ, 2025, 'Cumulative incidence of adolescent mental disorders following childhood maltreatment: An Australian longitudinal population cohort study', Australian and New Zealand Journal of Psychiatry, 59, pp. 197 - 201, http://dx.doi.org/10.1177/00048674241307150
Journal articles | 2025
Healy C; Lång U; O'Hare K; Metsälä J; O'Connor K; Lockhart E; Byrne N; Veijola J; Kajantie E; Ramsay H; Kelleher I, 2025, 'Adult psychiatric outcomes of young people who attended child and adolescent mental health services: A longitudinal total population study', Psychological Medicine, 55, http://dx.doi.org/10.1017/S0033291724003568
Journal articles | 2025
Healy C; O'Hare K; Lång U; Kerkelä M; Byrne J; Veijola J; Pulakka A; Metsälä J; Kajantie E; Kelleher I, 2025, 'Does treatment of adolescent depression reduce risk of later psychosis: A quasi-experimental study of selective serotonin reuptake inhibitor treatment in a total population cohort', European Psychiatry, 68, http://dx.doi.org/10.1192/j.eurpsy.2025.10050
Journal articles | 2025
Healy C; O'Hare K; Lång U; Kerkelä M; Byrne J; Veijola J; Pulakka A; Metsälä J; Kajantie E; Kelleher I, 2025, 'Erratum: Does treatment of adolescent depression reduce risk of later psychosis: A quasi-experimental study of selective serotonin reuptake inhibitor treatment in a total population cohort - CORRIGENDUM (European psychiatry : the journal of the Association of European Psychiatrists)', European Psychiatry the Journal of the Association of European Psychiatrists, 68, pp. e137, http://dx.doi.org/10.1192/j.eurpsy.2025.10079
Journal articles | 2025
Kelleher I; Poziemska AZ; Kieseppä V; Thapar A; Dubicka B; Lockhart E; Ford T; Minnis H; Gallagher L; McNicholas F; O’Hare K, 2025, 'Professorships in child and adolescent psychiatry relative to a similarly sized medical specialty in the UK and Ireland: cross-sectional study', British Journal of Psychiatry, 226, pp. 222 - 225, http://dx.doi.org/10.1192/bjp.2024.179
Journal articles | 2025
Kieseppä V; Lång U; Healy C; O'Hare K; Díaz-Caneja CM; Gülöksüz S; Rutten BPF; Cannon M; Halt AH; Riipinen P; Kelleher I, 2025, 'Do psychotic symptoms predict future psychotic disorders in adolescent psychiatry inpatients? A 17-year cohort study', Psychological Medicine, 55, http://dx.doi.org/10.1017/S003329172500073X
Journal articles | 2025
O'Hare K; Lång U; Healy C; Kougianou I; Talukder A; Murray R; Lawrie SM; John A; Kelleher I, 2025, 'Psychosis and bipolar disorder risk in child and adolescent mental health services in the UK: Population cohort study', British Journal of Psychiatry, http://dx.doi.org/10.1192/bjp.2025.48
Journal articles | 2025
O’Hare K; Byrne JF; Ramsay H; Romaniuk L; McGrath J; Keating D; Migone M; O’Connor K; Coss N; Cannon M; Cotter D; Healy C; Kelleher I, 2025, 'Stimulant Medication Use and Risk of Psychotic Experiences', Pediatrics, 155, http://dx.doi.org/10.1542/peds.2024-069142
Journal articles | 2025
O’Hare KJM; Poulton R; Linscott RJ, 2025, 'Parent-Rated Schizotypy and Clinician-Rated Psychotic Experiences in Early Adolescence as Predictors of Schizophrenia Diagnosis by Middle Adulthood', Schizophrenia Bulletin, 51, pp. S107 - S114, http://dx.doi.org/10.1093/schbul/sbad158
Journal articles | 2025
Talukder A; Kougianou I; Healy C; Lång U; Kieseppä V; Jalbrzikowski M; O'Hare K; Kelleher I, 2025, 'Sensitivity of the clinical high-risk and familial high-risk approaches for psychotic disorders - A systematic review and meta-analysis', Psychological Medicine, 55, http://dx.doi.org/10.1017/S0033291724003520
Journal articles | 2025
Tzoumakis S; Whitten T; McKenzie E; Dean K; O’Hare K; Watkeys OJ; Harris F; Carr VJ; Green MJ, 2025, 'Criminal justice system contacts of young people who were placed in out-of-home care in childhood: A population-based descriptive study of over 79,000 young people in New South Wales, Australia', Journal of Criminology, http://dx.doi.org/10.1177/26338076251379336
Journal articles | 2025
Watkeys OJ; O’Hare K; Dean K; Laurens KR; Tzoumakis S; Harris F; Carr VJ; Green MJ, 2025, 'Research Letter: Cumulative incidence of psychotropic drug prescriptions among children and adolescents in an Australian population cohort', Australian and New Zealand Journal of Psychiatry, 59, pp. 180 - 183, http://dx.doi.org/10.1177/00048674241307152
Journal articles | 2025
Watkeys OJ; Tzoumakis S; Dean K; Laurens KR; Harris F; O’Hare K; Carr VJ; Green MJ, 2025, 'Latent trajectories of mental health service use in an Australian state population cohort of children', Australian and New Zealand Journal of Psychiatry, 59, pp. 457 - 468, http://dx.doi.org/10.1177/00048674251324805
Journal articles | 2024
Bradley M; Dean K; Lim S; Laurens KR; Harris F; Tzoumakis S; O’Hare K; Carr VJ; Green MJ; O'Hare K, 2024, 'Early life exposure to air pollution and psychotic-like experiences, emotional symptoms, and conduct problems in middle childhood', Social Psychiatry and Psychiatric Epidemiology, 59, pp. 87 - 98, http://dx.doi.org/10.1007/s00127-023-02533-w
Journal articles | 2024
Green MJ; Watkeys OJ; Harris F; O'Hare K; Whitten T; Tzoumakis S; Laurens KR; Carpendale EJ; Dean K; Carr VJ, 2024, 'Cohort Profile Update: The New South Wales Child Development Study (NSW-CDS) - Wave 3 (child age ∼18 years)', International Journal of Epidemiology, 53, pp. dyae069 - dyae069, http://dx.doi.org/10.1093/ije/dyae069
Journal articles | 2024
Healy C; Lång U; O’Hare K; Veijola J; O'Connor K; Lahti-Pulkkinen M; Kajantie E; Kelleher I, 2024, 'Sensitivity of the familial high-risk approach for the prediction of future psychosis: a total population study', World Psychiatry, 23, pp. 432 - 437, http://dx.doi.org/10.1002/wps.21243
Journal articles | 2024
Kelleher I; Healy C; O'Hare K; Lång U, 2024, 'Collaborative research for psychosis prediction and prevention', Early Intervention in Psychiatry, 18, pp. 284 - 285, http://dx.doi.org/10.1111/eip.13480
Journal articles | 2024
O'Hare K; Fadiloglu K; Lang U; Healy C; Cannon M; DeVylder J; Kelleher I, 2024, 'Psychotic Experiences and Risk of Suicidal Thoughts and Behaviors: A Systematic Review and Meta-Analysis of Longitudinal Population Studies', SCHIZOPHRENIA BULLETIN, http://dx.doi.org/10.1093/schbul/sbae197
Journal articles | 2024
Watkeys OJ; O’Hare K; Dean K; Laurens KR; Harris F; Carr VJ; Green MJ; O'Hare K, 2024, 'Cumulative comorbidity between neurodevelopmental, internalising, and externalising disorders in childhood: a network approach', European Child and Adolescent Psychiatry, 33, pp. 2231 - 2241, http://dx.doi.org/10.1007/s00787-023-02312-7
Journal articles | 2024
Watkeys OJ; O’Hare K; Dean K; Laurens KR; Tzoumakis S; Harris MAClinEpi F; Carr VJ; Green MJ; O'Hare K; Harris F, 2024, 'Patterns of health service use for children with mental disorders in an Australian state population cohort', Australian and New Zealand Journal of Psychiatry, 58, pp. 857 - 874, http://dx.doi.org/10.1177/00048674241258599
Journal articles | 2023
Karcher NR; O'Hare K; Jay SY; Grattan R, 2023, 'Strengthening associations between psychotic like experiences and suicidal ideation and behavior across middle childhood and early adolescence', Psychological Medicine, 53, pp. 6002 - 6010, http://dx.doi.org/10.1017/S0033291722003166
Journal articles | 2023
O'Hare K; Tzoumakis S; Watkeys O; Katz I; Laurens KR; Butler M; Harris F; Carr VJ; Green MJ, 2023, 'Out-of-home care characteristics associated with childhood educational underachievement, mental disorder, and police contacts in an Australian population sample', Child Abuse and Neglect, 139, pp. 106120, http://dx.doi.org/10.1016/j.chiabu.2023.106120
Journal articles | 2023
O'Hare K; Watkeys O; Badcock JC; Laurens KR; Tzoumakis S; Dean K; Harris F; Carr VJ; Green MJ, 2023, 'Pathways from developmental vulnerabilities in early childhood to schizotypy in middle childhood', British Journal of Clinical Psychology, 62, pp. 228 - 242, http://dx.doi.org/10.1111/bjc.12405
Journal articles | 2023
O'Hare K; Watkeys O; Dean K; Laurens KR; Tzoumakis S; Harris F; Carr VJ; Green MJ, 2023, 'Childhood Schizotypy and Adolescent Mental Disorder.', Schizophrenia Bulletin, 50, pp. 69 - 77, http://dx.doi.org/10.1093/schbul/sbad132
Journal articles | 2023
O'Hare K; Watkeys O; Harris F; Dean K; Carr VJ; Green MJ, 2023, 'Self-harm and suicidal ideation in children and adolescents in contact with child protection services', Medical Journal of Australia, 218, pp. 526 - 527, http://dx.doi.org/10.5694/mja2.51898
Journal articles | 2023
O'Hare K; Watkeys O; Whitten T; Dean K; Laurens KR; Tzoumakis S; Harris F; Carr VJ; Green MJ, 2023, 'Cumulative Environmental Risk in Early Life: Associations With Schizotypy in Childhood', Schizophrenia bulletin, 49, pp. 244 - 254, http://dx.doi.org/10.1093/schbul/sbac160
Journal articles | 2023
O'Hare KJM; Linscott RJ, 2023, 'Measurement invariance of brief forms of the Schizotypal Personality Questionnaire across convenience versus random samples', Schizophrenia Research, 262, pp. 76 - 83, http://dx.doi.org/10.1016/j.schres.2023.10.033
Journal articles | 2023
O’Hare K; Hussain A; Laurens KR; Hindmarsh G; Carr VJ; Tzoumakis S; Harris F; Green MJ; O'Hare K, 2023, 'Self-reported mental health of children known to child protection services: an Australian population-based record linkage study', European Child and Adolescent Psychiatry, 32, pp. 101 - 112, http://dx.doi.org/10.1007/s00787-021-01841-3
Journal articles | 2023
O’Hare K; Laurens KR; Watkeys O; Tzoumakis S; Dean K; Harris F; Linscott RJ; Carr VJ; Green MJ; O'Hare K, 2023, 'Parental mental disorders and offspring schizotypy in middle childhood: an intergenerational record linkage study', Social Psychiatry and Psychiatric Epidemiology, 58, pp. 1637 - 1648, http://dx.doi.org/10.1007/s00127-023-02455-7
Journal articles | 2023
O’Hare K; Watkeys O; Dean K; Tzoumakis S; Whitten T; Harris F; Laurens KR; Carr VJ; Green MJ; O'Hare K, 2023, 'Self-harm and suicidal ideation among young people is more often recorded by child protection than health services in an Australian population cohort', Australian and New Zealand Journal of Psychiatry, 57, pp. 1527 - 1537, http://dx.doi.org/10.1177/00048674231179652
Journal articles | 2022
Green MJ; O’Hare K; Laurens KR; Tzoumakis S; Dean K; Badcock JC; Harris F; Linscott RJ; Carr VJ; O'Hare K, 2022, 'Developmental profiles of schizotypy in the general population: A record linkage study of Australian children aged 11–12 years', British Journal of Clinical Psychology, 61, pp. 836 - 858, http://dx.doi.org/10.1111/bjc.12363
Journal articles | 2022
Jay SY; Schiffman J; Grattan R; O’Hare K; Klaunig M; DeVylder J; Karcher NR, 2022, 'A Deeper Dive Into the Relation Between Psychotic-like Experiences and Suicidal Ideation and Behaviors in Children Across the United States', Schizophrenia Bulletin, 48, pp. 1241 - 1251, http://dx.doi.org/10.1093/schbul/sbac090
Journal articles | 2022
O'Hare K; Watkeys O; Whitten T; Dean K; Laurens KR; Harris F; Carr VJ; Green MJ, 2022, 'Cumulative environmental risk in early life is associated with mental disorders in childhood.', Psychological Medicine, 53, pp. 1 - 10, http://dx.doi.org/10.1017/s0033291722001702
Journal articles | 2022
O'Hare K; Watkeys O; Whitten T; Dean K; Laurens KR; Harris F; Carr VJ; Green MJ, 2022, 'Parental and community risk factors for childhood self-harm thoughts and behaviours', Journal of Affective Disorders, 310, pp. 279 - 283, http://dx.doi.org/10.1016/j.jad.2022.05.050
Journal articles | 2022
Watkeys OJ; O’Hare K; Dean K; Laurens KR; Harris F; Carr VJ; Green MJ; O'Hare K, 2022, 'Early childhood developmental vulnerability associated with parental mental disorder comorbidity', Australian and New Zealand Journal of Psychiatry, 57, pp. 1117 - 1129, http://dx.doi.org/10.1177/00048674221116806
Journal articles | 2021
O'Hare K; White N; Harding R; Galland B; Sellbom M; Shine B; Schaughency E, 2021, 'Sluggish Cognitive Tempo and Daytime Sleepiness Mediate Relationships Between Sleep and Academic Performance', Journal of Developmental and Behavioral Pediatrics, 42, pp. 637 - 647, http://dx.doi.org/10.1097/DBP.0000000000000948
Journal articles | 2021
O′hare KJM; Poulton R; Linscott RJ, 2021, 'Psychotic Experiences and Schizotypy in Early Adolescence Predict Subsequent Suicidal Ideation Trajectories and Suicide Attempt Outcomes from Age 18 to 38 Years', Schizophrenia Bulletin, 47, pp. 456 - 464, http://dx.doi.org/10.1093/schbul/sbaa151
Journal articles | 2020
O'Hare KJM; Korhonen T; Latvala A; Kaprio J; Linscott RJ, 2020, 'Association of subclinical psychosis with suicidal ideation: A twin study', Schizophrenia Research, 223, pp. 173 - 178, http://dx.doi.org/10.1016/j.schres.2020.07.010
Journal articles | 2017
Morton SE; O'Hare KJM; Maha JLK; Nicolson MP; Machado L; Topless R; Merriman TR; Linscott RJ, 2017, 'Testing the validity of taxonic schizotypy using genetic and environmental risk variables', Schizophrenia Bulletin, 43, pp. 633 - 643, http://dx.doi.org/10.1093/schbul/sbw108