Based on a recent survey of 43,093 Americans, 0.49% of adults meet diagnostic criteria for<unk>  (National Epidemiologic Survey on Alcohol and Related Conditions (NESARC; Grant et al., 2004). Traits related to<unk> , like most personality disorders, emerge in childhood or early adulthood. Findings from the NESArC study found that 18 to 29 year olds have a greater chance of developing<unk> .<unk>  is more common among women compared to men as 0.6% of women have<unk>  compared to 0.4% of men. A 2004 twin study suggests a heritability of 0.81 for developing<unk> . Because of this, there is significant evidence that this disorder runs in families. Children and adolescents with a history of anxiety disorders and physical illnesses are more susceptible to acquiring this disorder. Millon's subtypes Psychologist Theodore Millon identified five adult subtypes of<unk> . Any individual<unk>  may exhibit none or one of the following: Subtype Description Personality Traits Disquieted<unk>  Including avoidant features Restlessly perturbed; disconcerted and fretful; feels dread and foreboding; apprehensively vulnerable to abandonment; lonely unless near supportive figures. Selfless<unk>  Including masochistic features Merges with and immersed into another; is engulfed, enshrouded, absorbed, incorporated, willingly giving up own identity; becomes one with or an extension of another. Immature<unk>  Variant of "pure" pattern Unsophisticated, half-grown, unversed, childlike; undeveloped, inexperienced, gullible, and unformed; incapable of assuming adult responsibilities. Accommodating<unk>  Including histrionic features Gracious, neighborly, eager, benevolent, compliant, obliging, agreeable; denies disturbing feelings; adopts submissive and inferior role well. Ineffectual<unk>  Including schizoid features Unproductive, gainless, incompetent, meritless; seeks untroubled life; refuses to deal with difficulties; untroubled by shortcomings.
Dependent personality disorder
Borderline personality disorder
Haltlose personality disorder
Histrionic personality disorder
Organic personality disorder
Depressive personality disorder
Sadistic personality disorder
Immature personality disorder