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Int J Methods Psychiatr Res. 2018 Nov 18:e1752. doi: 10.1002/mpr.1752. [Epub ahead of print]

Mental disorder comorbidity and suicidal thoughts and behaviors in the World Health Organization World Mental Health Surveys International College Student initiative.

Author information

1
Department of Psychiatry, Columbia University, New York, New York.
2
Universitair Psychiatrisch Centrum, Campus Gasthuisberg, Katholieke Universiteit Leuven (UPC-KUL), Leuven, Belgium.
3
Health Services Research Unit, IMIM (Hospital del Mar Medical Research Institute), CIBER en Epidemiología y Salud Pública (CIBERESP), Pompeu Fabra University (UPF), Barcelona, Spain.
4
Department of Epidemiologic and Psychosocial Research, National Institute of Psychiatry Ramón de la Fuente Muñiz, Mexico City, Mexico.
5
Department of Clinical, Neuro and Developmental Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, The Netherlands.
6
Department for Psychology, Clinical Psychology and Psychotherapy, Friedrich-Alexander University Erlangen Nuremberg, Erlangen, Germany.
7
Wheelock College of Education and Human Development, Boston University, Boston, Massachusetts.
8
School of Psychology, Curtin University, Perth, Western Australia, Australia.
9
Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.
10
MRC Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry, Stellenbosch University, Cape Town, South Africa.
11
Psychology Research Institute, Ulster University, Coleraine, UK.
12
Department of Psychology, Harvard University, Cambridge, Massachusetts.
13
Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, Massachusetts.
14
Psychological and Brain Sciences, Boston University, Boston, Massachusetts.

Abstract

OBJECTIVES:

Comorbidity is a common feature of mental disorders. However, needs assessment surveys focus largely on individual disorders rather than on comorbidity even though the latter is more important for predicting suicidal thoughts and behaviors. In the current report, we take a step beyond this conventional approach by presenting data on the prevalence and correlates (sociodemographic factors, college-related factors, and suicidal thoughts and behaviors) of the main multivariate profiles of common comorbid Diagnostic and Statistical Manual of Mental Disorders (DSM)-IV disorders among students participating in the first phase of the World Health Organization World Mental Health International College Student initiative.

METHOD:

A web-based mental health survey was administered to first year students in 19 colleges across eight countries (Australia, Belgium, Germany, Mexico, Northern Ireland, South Africa, Spain, United States; 45.5% pooled response rate) to screen for seven common DSM-IV mental disorders: major depression, mania/hypomania, generalized anxiety disorder, panic disorder, attention-deficit/hyperactivity disorder, alcohol use disorder, and drug use disorder. We focus on the 14,348 respondents who provided complete data; 38.4% screened positive for at least one 12-month disorder.

RESULTS:

Multivariate disorder profiles were detected using latent class analysis (LCA). The least common class (C1; 1.9% of students) was made up of students with high comorbidity (four or more disorders, the majority including mania/hypomania). The remaining 12-month cases had profiles of internalizing-externalizing comorbidity (C2; 5.8%), internalizing comorbidity (C3; 14.6%), and pure disorders (C4; 16.1%). The 1.9% of students in C1 had much higher prevalence of suicidal thoughts and behaviors than other students. Specifically, 15.4% of students in C1 made a suicide attempt in the 12 months before the survey compared with 1.3-2.6% of students with disorders in C2-4, 0.2% of students with lifetime disorders but no 12-month disorders (C5), and 0.1% of students with no lifetime disorders (C6).

CONCLUSIONS:

In line with prior research, comorbid mental disorders were common; however, sociodemographic correlates of LCA profiles were modest. The high level of comorbidity underscores the need to develop and test transdiagnostic approaches for treatment in college students.

KEYWORDS:

college student mental health; comorbidity; mental disorders; suicide thoughts and behaviors

PMID:
30450753
DOI:
10.1002/mpr.1752

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