Mental Disorders: Posttraumatic Stress Disorder.

Posttraumatic stress disorder (PTSD) has a lifetime incidence of approximately 6.1% in the US population. However, studies of patients receiving regular primary care have shown a higher point prevalence, ranging from 11.

Mental Disorders: Personality Disorders.

Personality disorders (PDs) have a prevalence of approximately 9% in the United States. Patients with these disorders frequently are encountered in the family medicine setting. It is thought that a combination of unknown genetic factors and life experiences, particularly adverse childhood experiences, contribute to PD development.