Table 1.
Studies on the prevalence (%) of personality disorders in community samples in the United States
| STUDY (YEAR) | PAR | SCHIZ | SCHIZOT | ASP | BOR | HIS | NAR | AV | DEP | OC | OVERALL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NESARC (2008/09) | 4.4 | 3.1 | 3.9 | 3.6 | 5.9 | 1.8 | 6.2 | 2.4 | 0.5 | 7.9 | ? |
| NCS-R (2007) | 2.3 | 4.9 | 3.3 | 1 | 1.6 | 0 | 0 | 5.2 | 0.6 | 2.4 | 9.1 |
| Baltimore Study* (2002) | 0.7 | 0.7 | 1.8 | 4.5 | 1.2 | 0.4 | 0.1 | 1.4 | 0.3 | 1.2 | 10.0 |
| LSPD (1997) | 1 | 1 | 1.6 | 0.6 | 1.3 | 2.9 | 2.7 | 1 | 0.6 | 1.3 | 11.0 |
| Iowa Study (1989) | 0.9 | 1.3 | 13.2 | 0.4 | 1.3 | 3.8 | 0.4 | 0.4 | 14.5 | 14.9 | 11.1** |
unweighted prevalence rates
age adjusted
KEY
- ASP
antisocial personality disorder
- AV
avoidant personality disorder
- BOR
borderline personality disorder
- DEP
dependent personality disorder
- HIS
histrionic personality disorder
- LSPD
Longitudinal Study of Personality Disorders (Lenzenweger, 1997)
- NAR
narcissistic personality disorder
- NCS-R
National Comorbidity Survey-Replication (Lenzenweger, 2007)
- NESARC
National Epidemiologic Survey on Alcohol and Related Conditions (Grant, 2008; Grant, 2008; Stinson, 2008; Pulay, 2009)
- OC
obsessive-compulsive personality disorder
- PAR
paranoid personality disorder
- SCHIZ
schizoid personality disorder
- SCHIZOT
schizotypal personality disorder
some individuals may have met the criteria for more than one personality disorder.