Table 1.
Prevalence of 16 DSM-IV Axis I and Axis II psychiatric disorders across two randomly selected subsamples of the general population
| Prevalence in sample 1a, % (S.E.) (n=17326) | Prevalence in sample 2a, % (S.E.) (n=17327) | χ2 (df=2) | p | |
|---|---|---|---|---|
| Major depressive episode | 22.0 (0.4) | 21.8 (0.5) | 0.1 | 0.77 |
| Dysthymia | 5.1 (0.2) | 5.1 (0.2) | 0.0 | 0.92 |
| Manic episodes | 5.2 (0.2) | 5.3 (0.2) | 0.1 | 0.79 |
| Panic disorder | 7.6 (0.3) | 7.2 (0.3) | 0.9 | 0.35 |
| Social phobia | 7.2 (0.3) | 6.9 (0.3) | 0.9 | 0.35 |
| Specific phobia | 15.3 (0.4) | 15.0 (0.5) | 0.3 | 0.58 |
| Generalized anxiety disorder | 7.7 (0.3) | 7.7 (0.3) | 0.0 | 0.99 |
| Post-traumatic stress disorder | 9.8 (0.3) | 9.2 (0.3) | 2.9 | 0.10 |
| Antisocial personality disorder | 3.7 (0.2) | 4.0 (0.2) | 0.8 | 0.37 |
| Alcohol abuse/dependence | 34.8 (0.8) | 34.3 (0.8) | 0.9 | 0.34 |
| Drug abuse/dependence | 6.2 (0.3) | 6.5 (0.3) | 0.8 | 0.37 |
| Marijuana abuse/dependence | 9.6 (0.4) | 9.7 (0.4) | 0.2 | 0.68 |
| Tobacco dependence | 23.2 (0.6) | 23.0 (0.6) | 0.1 | 0.76 |
| Paranoid personality disorder | 4.3 (0.2) | 4.3 (0.2) | 0.0 | 0.92 |
| Schizotypal personality disorder | 4.0 (0.2) | 3.8 (0.2) | 0.1 | 0.72 |
| Schizoid personality disorder | 3.1 (0.2) | 3.0 (0.2) | 0.1 | 0.71 |
| Avoidant personality disorder | 2.2 (0.1) | 2.4 (0.2) | 1.1 | 0.30 |
S.E., Standard error; df, degrees of freedom.
a
Sample 1 was used for exploratory factor analysis; sample 2 was used for confirmatory factor analysis.