Sponsored by the National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, the NESARC is a representative survey of the U.S. civilian noninstitutionalized population aged 18 years and older. More than 43,000 American adults participated in the survey. Designed to assess prevalence and comorbidity, or co-occurrence, of multiple mental health disorders, the NESARC is the first national survey conducted in the United States to estimate the prevalence of personality disorders--stable patterns of inner experience and behavior that are inflexible and maladaptive that begin in early adulthood and are displayed in a variety of contexts.
In 2001- 2002, the NESARC found that personality disorders are pervasive in the general population:
- 16.4 million individuals (7.9 percent of all adults) had obsessive-compulsive personality disorder.
- 9.2 million (4.4 percent) had paranoid personality disorder.
- 7.6 million (3.6 percent) had antisocial personality disorder.
- 6.5 million (3.1 percent) had schizoid personality disorder.
- 4.9 million (2.4 percent) had avoidant personality disorder.
- 3.8 million (1.8 percent) had histrionic personality disorder.
- 1.0 million (0.5 percent) had dependent personality disorder.
Other Risk Factors for Personality DisordersIn general, other risk factors for personality disorders included being Native American or Black, being a young adult, having low socioeconomic status, and being divorced, separated, widowed, or never married. With the exception of histrionic personality disorder, all the personality disorders assessed in the survey were associated with considerable emotional disability and impairment in social and occupational functioning.
"The first-time availability of prevalence information on personality disorders at the national level is critically important," said Dr. Ting-Kai Li, M.D., Director, National Institute on Alcohol Abuse and Alcoholism. "Personality disorders consistently have been associated with substantial impairment and decreased psychological functioning among alcohol and drug abusers."
"The NESARC was crucial in determining the scope of personality disorders confronting the nation and in identifying important subgroups of the population in greatest need of prevention efforts," said lead author Bridget F. Grant, Ph.D., Ph.D., Chief, Laboratory of Epidemiology and Biometry, Division of Intramural Clinical and Biological Research, NIAAA.