title: Substance use and mental health disorders are linked to different forms of intimate partner violence victimisation.
abstract: BACKGROUND
  Substance and mental health disorders convey significant health burdens and impair interpersonal relationships. We tested associations between comorbid substance and mental health disorders and different forms of intimate partner violence (IPV) experienced by young adults.
  
  
  METHODS
  Mothers (n = 6703) were recruited during pregnancy to the longitudinal Mater-University of Queensland Study of Pregnancy. Mother/offspring dyads were followed up from birth to 21 years. Offspring with complete psychiatric data at 21 years who reported having had an intimate partnership were included (n = 1781). Participants' experiences of psychological, physical and severe combined IPV were assessed at 21 years using a summarised form of the Composite Abuse Scale. We used the Composite International Diagnostic Interview to obtain lifetime diagnoses of mental health and substance disorders. Multivariable logistic regression models of each IPV form were adjusted for individual, family and neighbourhood factors during adolescence, and for other forms of IPV.
  
  
  RESULTS
  We have shown specific links between different forms of IPV experienced and individual substance and mental health disorders. Mental health disorders were related to all three forms of IPV, while alcohol disorders were linked to psychological IPV (ORAUD = 1.86; 1.21-2.86) and illicit substance disorders to physical IPV (ORSUD = 2.07; 1.25-3.43). The co-occurrence of related disorders was strongly linked to psychological and physical IPV.
  
  
  CONCLUSIONS
  Intimate partner violence was experienced by both men and women. Substance and mental health disorders were associated with specific forms of IPV victimisation, suggesting that screening IPV clients and mental health/substance disorder patients for the converse problems may be important for intervention planning.
authors.affiliation: School of Public Health, The University of Queensland, Herston, Australia. Electronic address: c.salom@uq.edu.au.
authors.forename: Caroline L
authors.initials: CL
authors.lastname: Salom
authors.affiliation: School of Public Health, The University of Queensland, Herston, Australia.
authors.forename: Gail M
authors.initials: GM
authors.lastname: Williams
authors.affiliation: School of Public Health, The University of Queensland, Herston, Australia; School of Social Science, The University of Queensland, Herston, Australia.
authors.forename: Jakob M
authors.initials: JM
authors.lastname: Najman
authors.affiliation: School of Public Health, The University of Queensland, Herston, Australia; Centre for Youth Substance Abuse Research, The University of Queensland, Herston, Australia.
authors.forename: Rosa
authors.initials: R
authors.lastname: Alati
mesh_terms: D015897:Comorbidity; D019548:Crime Victims / Q000523:psychology*; D005260:Female; D006801:Humans; D000066511:Intimate Partner Violence / Q000523:psychology*; D016015:Logistic Models; D008137:Longitudinal Studies; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology* / Q000523:psychology*; D011247:Pregnancy; D011793:Queensland / Q000453:epidemiology; D012307:Risk Factors; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000523:psychology*; D055815:Young Adult
keywords: Alcohol; Comorbid; Domestic violence; Intimate partner violence; Mental health; Relationships