Ethnicity and psychiatric comorbidity in a national sample: Evidence for latent comorbidity factor invariance and connections with disorder prevalence

Nicholas R. Eaton, Katherine M. Keyes, Robert F. Krueger, Arjen Noordhof, Andrew E. Skodol, Kristian E. Markon, Bridget F. Grant, Deborah S. Hasin

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


Purpose Prevalence rates, and bivariate comorbidity patterns, of many common mental disorders differ significantly across ethnic groups. While studies have examined multivariate comorbidity patterns by gender and age, no studies to our knowledge have examined such patterns by ethnicity. Such an investigation could aid in understanding the nature of ethnicity-related health disparities in mental health and is timely given the likely implementation of multivariate comorbidity structures (i.e., internalizing and externalizing) to frame key parts of DSM-5. Methods We investigated whether multivariate comorbidity of 11 common mental disorders, and their associated latent comorbidity factors, differed across five ethnic groups in a large, nationally representative sample (n = 43,093). We conducted confirmatory factor analyses and factorial invariance analyses in White (n = 24,507), Hispanic/ Latino (n = 8,308), Black (n = 8,245), Asian/Pacific Islander (n = 1,332), and American Indian/Alaska Native (n = 701) individuals. Results Results supported a two-factor internalizing- externalizing comorbidity factor model in both lifetime and 12-month diagnoses. This structure was invariant across ethnicity, but factor means differed significantly across ethnic groups. Conclusions These findings, taken together, indicated that observed prevalence rate differences between ethnic groups reflect ethnic differences in latent internalizing and externalizing factor means. We discuss implications for classification (DSM-5 and ICD-11 meta-structure), health disparities research, and treatment. Springer-Verlag (outside the USA) 2012.

Original languageEnglish (US)
Pages (from-to)701-710
Number of pages10
JournalSocial Psychiatry and Psychiatric Epidemiology
Issue number5
StatePublished - May 2013

Bibliographical note

Funding Information:
Acknowledgments U01AA018111, R01DA018652, and K05AA 014223 (Hasin). The National Epidemiologic Survey on Alcohol and Related Conditions was sponsored by the National Institute on Alcohol Abuse and Alcoholism (NIAAA) and funded, in part, by the Intramural Program, NIAAA, National Institutes of Health, with additional support from the National Institute on Drug Abuse.


  • Comorbidity
  • Disparities
  • Ethnicity
  • Externalizing
  • Internalizing
  • Prevalence


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