| Prevalence |
Approximately 3% of the general population is estimated to have schizoid personality disorder (Grant, Hasin, et al., 2004). |
| Comorbidity |
Common comorbid personality disorders are the other Cluster A (odd/eccentric) personality disorders and avoidant personality disorder. Half of the people diagnosed with schizoid personality disorder will also be diagnosed with schizotypal personality disorder (McGlashan et al., 2000). |
| Onset |
Those who develop schizoid personality disorder were often socially isolated underachievers who were teased by their classmates as children and adolescents. |
| Course |
Schizoid personality disorder is relatively stable over time (Seivewright et al., 2002). |
| Gender Differences |
This personality disorder tends to be diagnosed more often in men than in women. Men with this personality disorder are often more impaired than their female counterparts. |
| Source: Unless otherwise noted, the source is American Psychiatric Association, 2013. |