Suicidal Thought and Biological Markers

Inclusion Criteria: oBe able to understand the requirements of the study and provide written informed consent to participate in this study. Signed and dated informed consent will be obtained from each patient before participation in the study, oHave provided written authorization for the use and disclosure of their protected health information, oBe 13 years of age or older, oBe diagnosed with: oSuicide ideation/attempts/gestures, or oNon-suicidal and having other mental disorders, oNon-mentally ill, and non-suicidal controls, oSpeak English as the primary language in the home, oAgree to abide by the study protocol and its restrictions and be able to complete all aspects of the study. Exclusion Criteria: oSignificant unstable medical condition that may obscure the scientific interpretability of the study or unduly increase the risks of the protocol, oAnticipated inability to attend follow-up phone interview, oPatients whose level of consciousness precludes consent and research assessments, oPatients unable to assent because of severe mental retardation, oPatients who in the judgment of the Investigator may be unreliable or uncooperative with the evaluation procedure outlined in this protocol, oFor control patients a diagnosis of depression or another non-mental illness, or a history of suicidal behavior or suicidal attempt, oPatients who are unwilling to provide the DNA sample.