Using Part II of the National Comorbidity Survey Replication, it was found that for Cluster B personality disorders prevalence rates were: 0.6% for antisocial, 1.4% for borderline, 0.0% for histrionic, and 0.0% for narcissistic. It should be noted that the prevalence of histrionic personality disorder was 1.8% and narcissistic was 6.2% in the National Epidemiologic Survey on Alcohol and Related Conditions.

As for sex-and gender-related differences, antisocial personality disorder is three times more common in men and they present with irritability/aggression and reckless disregard for the safety of others more often than women. Borderline personality disorder is more common among women in clinical samples while community samples show no difference in prevalence, likely due to the tendency of women to seek help leading them to clinical settings. Histrionic personality disorder is more predominant in females in clinical settings, though some studies using structured assessments point to no difference in prevalence rates across the genders. Narcissistic personality disorder occurs more in men than women.