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COGNITIVE APPROACHES TO SUICIDE Center for Disease Control and Prevention February 6, 2004 Aaron T. Beck, M.D. Gregory K. Brown, Ph.D. University of Pennsylvania
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REVIEW OF STUDIES 1969-2004 I. CLASSIFICATION
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NIMH TASK FORCE 1969 ATTEMPTED SUICIDE 1.Degree of Intent 2.Degree of Medical Lethality SUICIDE IDEATION 1.Degree of Intent 2.Degree of Medical Lethality COMPLETED SUICIDE 1. Degree of Intent
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Definition of a Suicide Attempt “a potentially self-injurious behavior with a nonfatal outcome, for which there is evidence (either explicit or implicit) that the person intended at some (nonzero) level to kill himself/herself.” Source: O’Carroll, Berman, Maris, Moscicki, Tanney, & Silverman (1996)
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Intentional Self-Injury Behavior Suicide Intent Definite Uncertain/ Potential None Definite Definite Suicide Attempt (1) Possible Suicide Attempt (2) Suicide Ideation Uncertain Possible Suicide Attempt (3) Possible Suicide Attempt (4) Mild Suicide Ideation None Intentional Self-Injury Behavior without Suicide Intent (5) Possible/ Potential Self-Injury Behavior without Suicide Intent (6)
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II. ASSESSMENT
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INSTRUMENT DEVELOPMENT 1.MEDICAL LETHALITY (BIOLOGICAL DAMAGE) SCALE 2.SUICIDE INTENT SCALE (FOR ATTEMPTERS) POST-SUICIDE SCALE a. Psychological Autopsy 4.SUICIDE IDEATION SCALE
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5.HOPELESNESS SCALE 6.SUICIDE IDEATION AT WORST POINT 7.WISH TO LIVE – WISH TO DIE SCALE 8.BECK DEPRESSION INVENTORY – SUICIDE ITEM
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CONSTRUCT VALIDITY 1.DEPRESSION SCALE, SUICIDE INTENT SCALE, POST SUICIDE INTENT SCALE, AND HOPELESSNESS SCALE CORRELATE SIGNIFICANTLY WITH MEDICAL LETHALITY
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2.HOPELESSNESS CORRELATES MORE STRONGLY THAN DOES DEPRESSION WITH LETHALITY (INCLUDING DEATH). a.Hopelessness-intent correlation is high when depression is partialed out, but not vice-versa. b.Hopelessness correlation persists across all demographic and diagnostic groups. c.Hopelessness as a mediator between stressors and suicide.
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III. PREDICTION OF SUICIDE
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Risk Factors for Psychiatric Patients 1975-2000 Sampled 6,891 psychiatric outpatients Conducted National Death Index search Identified 49 suicide cases All patients received structured interviews and standardized assessment measures Source: Brown, Beck, Steer, & Grisham (2000)
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Predictive Validity Source: Brown, Beck, Steer, & Grisham (2000)
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Adjusted Hazard Ratios For Suicide with Psychiatric Outpatients
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Predictive Validity of Standardized Measures for Completed Suicide with Psychiatric Outpatients Odds Ratios Measure: Cut-off Score:> 22> 8> 2> 14 3.6 4.5 6.6 13.8
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Wish to Die vs. Wish to Live and Completed Suicide with Psychiatric Outpatients Percent Who Committed Suicide N = 21 of 637 N = 23 of 5131 3.2%.4% Odds Ratio = 7.4 (95% CI: 4.0-13.4), p <.001
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SUICIDE ATTEMPTERS 1970-1975 2000-2001
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TENTATIVE CLASSIFICATION OF ATTEMPTERS 1.“PERSONALITY DISORDER” VS “DEPRESSIVES” 1970-1975 2.“BORDERLINES” VS “NON-BORDERLINE DEPRESSIVES” 2000-2001 b. CLASSICAL DEPRESSIVE: - Attempt related to steady progression of depression a. BORDERLINES: - More repeats - High degree of reactivity - Low control
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CHARACTERISTICS OF ATTEMPTERS 1970-1975 PERSONALITY DISORDERS ATTEMPT WHEN DISTRESSED 1.“Self-medicate” with drugs to relieve distress 2.Often feel shame, guilt, hopeless, after drug and then attempt 3.Low tolerance for frustration or distress 4.Poor problem solving 5.Defective self-control 6.More reality problems
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DEPRESSIVE (n = 109) PERSONALITY DISORDER (n = 182) MALE27.5%53.3% WHITE53.2%51.6% AGE (YEARS)30.7%28.1% MARRIED24.8%14.5% SINGLE34.9%47.5% WIDOWED4.6%2.8% SEPARATED/ DIVORCED 31.2%27.9% COHABITATING4.6%7.3% SUICIDE AT 5 YR FOLLOW-UP 4.6%8.2%
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CHARACTERISTICS OF EPISODIC DEPRESSIVE ATTEMPTERS ATTEMPT SUICIDE AT DEPTH OF DEPRESSION (IF NOT RETARDED) 1.Profound hopelessness and generalized cognitive distortions 2.Suicide ideation only during episode
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Odds Ratios for Suicide with Suicide Attempters *p <.05
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Sensitivity of Reaction to Attempt for Completed Suicide Percent Who Committed Suicide N = 9 of 176 N = 5 of 199N = 10 of 101 5% 2.5% 10% Odds Ratio:0.98 0.352.83
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Wish to Die vs. Wish to Live and Completed Suicide with Psychiatric Outpatients Percent Who Committed Suicide N = 21 of 637 N = 23 of 5131 3.2%.4% Odds Ratio = 7.4 (95% CI: 4.0-13.4), p <.001
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IV: INTERVENTION
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Cognitive Therapy for Suicide Attempters NIMH / CDC
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Study Design
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Inclusion and Exclusion Criteria Inclusion Criteria: –Patient must be evaluated at the ED within 48 hours of attempting suicide –Patient must complete a full baseline assessment within 3 weeks of making the attempt –Age 16 or older –Patient must have at least two verifiable contacts with telephone numbers –Must be able to provide informed consent Exclusion Criteria: –A severe incapacitating medical disorder that would prevent participation in psychotherapy
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Recruitment 538 Patients Referred 186 were unable to be contacted 164 were excluded (not true attempters) Of the 188 Eligible Patients Contacted 68 (36%) refused 120 Baselines Completed with 60 Patients assigned to CT+EC and 60 Patients assigned to EC
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Sample Description
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Age and Gender Mean Age 33.2 years SD = 9.7
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Ethnicity %
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Marital Status 7%
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Yearly Income 66% Unemployed or Disabled
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Method of Suicide Attempt Overdose 58% Cut 17% Jump 13% Hang 6% Traffic 3% CO2 3%
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Type of Drug Used in Overdose
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Psychiatric Diagnoses Mean Number of Axis I Diagnoses was 3 Most Patients had Major Depression with Co-Morbid Substance Use Disorder
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Substance Use Diagnoses
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Participation Bias 0.32, 3.64 1.09 55 Other (n = 13) 0.22, 0.68 0.39 6644 African American (n = 151) 1.49, 4.54 2.60 2951 Caucasian (n = 89) CI (95%) OR Yes % (n=180) No % (n=112) Ethnicity Consent
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