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1.
Mol Psychiatry ; 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38729992

RESUMO

Decedents with no known mental disorder comprise 5-40% of suicides, suggesting that suicide ideation (SI) and behavior may occur in the psychiatrically healthy with important implications for suicide risk screening. Healthy Volunteers (HV) and patients with Major Depressive Disorder (MDD) provided 7 days of Ecological Momentary Assessment (EMA) data about SI and stressors. Longitudinal mixed effects logistic regression models compared HV and patient SI and stressors. Mixed effects linear regression models compared HVs' and patients' SI score change from the previous epoch's SI score when each stressor occurred. HVs (n = 42) reported less frequent (p < 0.001) and less intense SI (p < 0.003) than patients (n = 80), yet did endorse SI and/or SI-related items in 44% of EMA epochs, endorsing SI items in 25% of epochs with non-zero SI scores. For 7 of 8 stressors, patients reported stressors more often than HVs (all p < 0.001) responding to them with increased SI (0.0001 < p < 0.0472). HVs were relatively resilient to stressors, reporting SI increases only in response to neglect (p < 0.0147). Although SI and SAs are documented among psychiatrically healthy individuals, scientific attention to these observations has been scant. Real-time SI measurement showed that HVs' SI was less pronounced than MDD patients', but was endorsed, nonetheless. Patients were more likely to report stressors than HVs, perhaps due to greater sensitivity to the environment, and reported SI in response to stressors, which was less common in HVs. Both MDD patients and HVs most often manifested passive SI (viz, "decreased wish to live"). However, passive SI (viz, "desire for death"), may predict suicide, even absent SI per se (thinking about killing yourself). This study validates the utility of real-time SI assessment, showing that HVs endorse SI items in 11% of epochs, which implies that suicide risk screening focused on those with mental disorders may be too narrow an approach.

2.
Suicide Life Threat Behav ; 54(2): 275-285, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38300145

RESUMO

INTRODUCTION: Understanding the specific strategies individuals use to cope with their suicidal thoughts may have implications for suicide prevention. This study developed a classification system of coping strategies and applied this system to individual coping behaviors documented in a safety planning intervention smartphone application called Beyond Now. METHOD: 725 Beyond Now safety planning app users, aged 16 to over 55 years, entered coping strategies that were used to develop a classification system through content analysis. Entries were either user generated or selected from a list of suggested coping strategies, and 2960 entries were classified using the system. RESULTS: Our classification system featured 11 distinct descriptive categories, with media consumption being the most popular coping strategy among Beyond Now users, followed by relaxation and self-care activities, exercise and creative activities. More than half (57%) of the entries were suggested coping strategies with the remainder being user-generated entries (43%). CONCLUSION: A wide range of coping strategies were entered into safety plans, with activities that aim to either distract or provide reductions in emotional arousal common. Future research is needed to evaluate the efficacy of the coping strategies listed in safety plans.


Assuntos
Aplicativos Móveis , Suicídio , Humanos , Ideação Suicida , Prevenção do Suicídio , Capacidades de Enfrentamento , Emoções , Adaptação Psicológica , Suicídio/psicologia
3.
Psychiatry Res ; 327: 115315, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37542793

RESUMO

Higher intent suicide attempts carry elevated risk of future suicidal behavior. Abnormal functioning of the hypothalamic-pituitary-adrenal (HPA) axis is both linked to nonfatal suicidal behavior and suicide deaths in major depressive disorder. Few studies, however, have identified biological markers of a high-intent suicidal subgroup. We examined HPA axis output and reactivity to the Trier Social Stress Test (TSST) via salivary cortisol in depressed individuals (N=68) with a suicide attempt (SA) history. A median split of higher and lower suicidal intent scores was used to define groups. Individuals with high intent SA had attenuated total cortisol output (AUCg), F(1,60)=10.04, SE=5.095, p=.003, and lower HPA-axis stress responsivity to the TSST (AUCi), F(1,60)=4.50, SE=4.604, p=.039, compared with the low intent SA group. The high intent group also reported more pronounced negative affect than the low intent group (F[1,61]=6.413, SE=10.55, p=.014) both at baseline (meandiff=22.32, p=.038) and in response to the stressor task (meandiff=37.62, p=.003). Vulnerability to suicidal behavior in high-intent individuals may be related to the combined profile of impaired physiological responses to stress and greater negative affectivity. This clinical and biologic subgroup may benefit from targeted suicide prevention interventions.


Assuntos
Transtorno Depressivo Maior , Ideação Suicida , Humanos , Hidrocortisona , Depressão , Sistema Hipotálamo-Hipofisário , Sistema Hipófise-Suprarrenal , Estresse Psicológico , Saliva
4.
J Affect Disord ; 323: 819-825, 2023 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-36549341

RESUMO

Suicidal behavior is associated with deficits in cognitive control; however, suicidal ideation (SI), a key precursor to suicidal behavior, has been less consistently linked to neuropsychological functioning. Additionally, no study to date has examined attentional control capacities in relation to variability in suicidal ideation, defined as fluctuation in SI intensity and duration across short periods of time. Prior research suggests that suicidal individuals with highly variable SI experience greater stress-responsive increases in SI and cortisol, potentially raising risk for suicidal behavior. Here, we examined attentional control capacities associated with SI variability and severity in ninety-five subjects with major depressive disorder. Variability and severity of SI and depressive affect were quantified using Ecological Momentary Assessment (EMA) over a 7-day period. Participants completed the Continuous Performance Task (CPT) and a computerized Stroop task for assessment of attentional control. EMA SI variability was associated with greater attentional interference on the Stroop task, and this was not accounted for by severity of SI, concurrently assessed depressive affect, or baseline depression. CPT performance was not related to SI variability or intensity. Findings highlight the utility of EMA methods in characterizing patterned experiences of SI and suggest that attentional control deficits may contribute to these characteristic patterns.


Assuntos
Atenção , Transtorno Depressivo Maior , Ideação Suicida , Humanos , Atenção/fisiologia , Transtorno Depressivo Maior/psicologia , Avaliação Momentânea Ecológica
5.
Psychol Med ; 53(9): 4245-4254, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-35899406

RESUMO

BACKGROUND: Neurocognitive testing may advance the goal of predicting near-term suicide risk. The current study examined whether performance on a Go/No-go (GNG) task, and computational modeling to extract latent cognitive variables, could enhance prediction of suicide attempts within next 90 days, among individuals at high-risk for suicide. METHOD: 136 Veterans at high-risk for suicide previously completed a computer-based GNG task requiring rapid responding (Go) to target stimuli, while withholding responses (No-go) to infrequent foil stimuli; behavioral variables included false alarms to foils (failure to inhibit) and missed responses to targets. We conducted a secondary analysis of these data, with outcomes defined as actual suicide attempt (ASA), other suicide-related event (OtherSE) such as interrupted/aborted attempt or preparatory behavior, or neither (noSE), within 90-days after GNG testing, to examine whether GNG variables could improve ASA prediction over standard clinical variables. A computational model (linear ballistic accumulator, LBA) was also applied, to elucidate cognitive mechanisms underlying group differences. RESULTS: On GNG, increased miss rate selectively predicted ASA, while increased false alarm rate predicted OtherSE (without ASA) within the 90-day follow-up window. In LBA modeling, ASA (but not OtherSE) was associated with decreases in decisional efficiency to targets, suggesting differences in the evidence accumulation process were specifically associated with upcoming ASA. CONCLUSIONS: These findings suggest that GNG may improve prediction of near-term suicide risk, with distinct behavioral patterns in those who will attempt suicide within the next 90 days. Computational modeling suggests qualitative differences in cognition in individuals at near-term risk of suicide attempt.


Assuntos
Tentativa de Suicídio , Veteranos , Humanos , Tentativa de Suicídio/psicologia , Estudos Prospectivos , Cognição/fisiologia , Fatores de Risco
6.
Br J Psychiatry ; 221(2): 485-487, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35081996

RESUMO

Clinical and empirical reports suggest that individuals use non-suicidal self-injury (NSSI) not only to ameliorate dysphoria, but to curb suicidal ideation or avoid suicidal behaviour. To date, however, no study has quantitatively assessed whether NSSI leads to short-term reductions in suicidal ideation. Using real-time monitoring over 7 days in a sample with borderline personality disorder, we found evidence that NSSI is followed by reductions in suicidal ideation in the subsequent hours. This suggests that NSSI may serve as an effective, albeit maladaptive, coping strategy for suicidal states. These findings have important implications for the management of suicide risk and self-harm.


Assuntos
Transtorno da Personalidade Borderline , Transtorno Depressivo Maior , Comportamento Autodestrutivo , Transtorno da Personalidade Borderline/epidemiologia , Humanos , Fatores de Risco , Comportamento Autodestrutivo/epidemiologia , Ideação Suicida
7.
J Affect Disord ; 300: 511-531, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-34974074

RESUMO

BACKGROUND: During adolescence, suicide risk increases; effective treatments are needed to reduce risk. METHODS: Databases were searched (1995-2020) for randomized controlled trials (RCTs) concerning psychosocial treatments for suicide prevention in adolescents (10-18 yrs). Data were extracted from the timepoint closest to 6 months. Cohen's ds were estimated for reducing suicidal ideation (SI), self-harming behaviors (SHB) excluding strictly non-suicidal self-injury, and suicide attempts (SA) and analyzed using generalized least square regression. Meta-analytic innovations included within-person correlations to reflect trait suicidality; annualization to control for exposure; estimated lifetime risk based on ages; and modeling inclusion/exclusion criteria. Alternate approaches included relative risk and comparison of intervention and control treatments to baseline. RESULTS: Of 30 RCTs, 6 assessing SHB (4 measuring SA), and 7 assessing SI demonstrated treatment effectiveness. Overall, interventions decreased SI (n = 25) with low effect size (d = 0.08, p = 0.01), non-significant after controlling for publication bias (d = 0.05, p = 0.1); interventions were non-significant for SHB (n = 25, d = 0.001, p = 0.97) or SA (n = 18, d = 0.03, p = 0.52). To prevent one SHB, the number needed to treat (NNT) was 45[26,156]; for SA, NNT=42[24,149]. Non-superiority may relate to effectiveness of control treatments. Thus, experimental and control treatments also were compared to baseline: both reduced SI (p < 0.0001), and effectiveness improved for SHB (NNT=12) and SA (NNT=11). LIMITATIONS: Study heterogeneity and inconsistent statistical reporting limited meta-analysis. CONCLUSIONS: Psychosocial interventions for suicide risk in adolescents showed little effectiveness compared with control treatments; suicide outcomes improved in both groups compared to baseline. Different approaches may be needed, including precision medicine methodologies and standardized statistical reporting criteria.


Assuntos
Intervenção Psicossocial , Prevenção do Suicídio , Adolescente , Criança , Humanos , Risco , Comportamento Autodestrutivo/prevenção & controle , Comportamento Autodestrutivo/psicologia , Ideação Suicida , Tentativa de Suicídio/prevenção & controle , Resultado do Tratamento
8.
Mol Psychiatry ; 26(9): 5079-5086, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-32576966

RESUMO

Suicidal behavior (SB) can be impulsive or methodical; violent or not; follow a stressor or no obvious precipitant. This study tested whether childhood trauma, affective lability, and aggressive and impulsive traits predicted greater SI variability. We also assessed whether affective lability, aggressive or impulsive traits explain childhood trauma's effects on SI variability and whether those with highly variable SI respond to stressful events with increases in SI. Finally, we assessed variable SI's trajectory over 2 years. Depressed participants (n = 51) had ecological momentary assessments (EMA) over 7 days at baseline, 3, 6, 12, 18, and 24 months. SI variability was assessed using the square Root of the Mean Square of Successive Deviations. Mixed Effects Models were fit as appropriate. Childhood trauma was associated with subsequent aggression. Physical abuse predicted both aggression and affective lability as well as SI variability, but not impulsivity. In two-predictor models, physical abuse's effect on SI variability was no longer significant, when controlling for the effect of higher aggression and impulsivity. Those with high SI variability exhibited greater increases in SI after stressors compared with those with less variability. We did not find that SI variability changed over time, suggesting it might be trait-like, at least over 2 years. Variable SI predisposes to marked SI increases after stressful events and may be a trait increasing risk for impulsive SB, at least over 2 years.


Assuntos
Ideação Suicida , Suicídio , Agressão , Biomarcadores , Humanos , Comportamento Impulsivo , Fatores de Risco , Tentativa de Suicídio
9.
J Psychiatr Res ; 125: 129-135, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32278224

RESUMO

OBJECTIVE: To examine factors differentiating individuals whose first suicide attempt was during childhood (ages 5-12 yrs) from those who first attempted suicide during adolescence (13-19 yrs) and during adulthood (≥20 yrs). METHOD: A sample of 418 participants (ages 18-64 yrs) with a mood disorder and ≥1 lifetime suicide attempt was divided into three groups according to age of first suicide attempt (childhood: N = 43, adolescent: N = 149, adulthood: N = 226) and compared on demographics, childhood adversity, parental psychopathology, comorbid lifetime axis I diagnoses, self-harm and characteristics of first attempt. RESULTS: Participants in the Childhood Attempt group were more likely to report childhood adversity, parental alcohol use disorder and subsequent suicide attempts than the two other groups. They were also more likely to have a depressed mother, non-suicidal self-injury (NSSI) during childhood and adolescence, lifetime PTSD and aggressive behavior than the Adulthood Attempt group. The Adolescent Attempt group had more childhood adversity, parental suicidal behavior, lifetime PTSD and NSSI during adolescence than the Adulthood Attempt group. The groups differed on methods of first attempt, and its lethality was related to age of attempt. CONCLUSIONS: Early adversity and parental psychopathology are particularly prominent in those who make childhood suicide attempts, suggesting that this group may represent a suicidal behavior subtype.


Assuntos
Comportamento Autodestrutivo , Tentativa de Suicídio , Adolescente , Adulto , Criança , Pré-Escolar , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Comportamento Autodestrutivo/epidemiologia , Ideação Suicida , Adulto Jovem
10.
Psychiatry ; 83(3): 221-230, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32069167

RESUMO

Objective: Suicidal individuals are a heterogeneous population and may differ in systematic ways in their responsiveness to stress. The primary aim of the present study was to identify whether a different pattern of physiological stress response exists among adult suicide attempters with a history of behavioral problems during childhood and adolescence, which earlier studies have related to both decreased activity of the HPA axis and to suicidal behaviors. Method: Seventy-eight participants with Borderline Personality Disorder were assessed using the SCID-II, and completed self-report measures assessing their history of suicide attempts, history of aggressive behaviors, depressive symptoms, history of lifetime abuse and demographics. Participants' cortisol reactivity was assessed using the Trier Social Stress Test. Results: Analyses indicated that suicide attempters with a history of behavioral problems in youth (n = 30) had a significantly lower response to stress than both suicide attempters without such a history (n = 26) and non-attempters (n = 22), when controlling for lifetime history of abuse. The groups did not differ in basal cortisol. Conclusions: These findings suggest a unique subtype of suicide attempter among those with Borderline Personality Disorder, characterized by a blunted physiological stress response.


Assuntos
Sintomas Comportamentais , Transtorno da Personalidade Borderline , Hidrocortisona/metabolismo , Sistema Hipotálamo-Hipofisário , Estresse Fisiológico/fisiologia , Estresse Psicológico , Tentativa de Suicídio , Adolescente , Adulto , Sintomas Comportamentais/metabolismo , Sintomas Comportamentais/fisiopatologia , Transtorno da Personalidade Borderline/metabolismo , Transtorno da Personalidade Borderline/fisiopatologia , Humanos , Sistema Hipotálamo-Hipofisário/metabolismo , Sistema Hipotálamo-Hipofisário/fisiopatologia , Pessoa de Meia-Idade , Saliva/metabolismo , Estresse Psicológico/metabolismo , Estresse Psicológico/fisiopatologia , Adulto Jovem
11.
Psychiatry Res ; 287: 112624, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31727438

RESUMO

Neurocognitive detection of suicidal states has the potential to significantly advance objective risk assessment. This goal requires establishing that neurocognitive deficits fluctuate around the time of a suicide attempt. The current study therefore evaluated whether neurocognitive performance is temporally related to suicide attempt, in a sample at highrisk for suicide (n = 141). Evaluations consisted of a clinician-administered interview, self-report questionnaires, and neurocognitive tasks assessing response inhibition, attentional control, and memory recognition. Analyses examined whether neurocognitive scores significantly differed according to the following temporal suicide attempt categories: (a) past-week attempt; (b) past-year attempt (not in past week); and (c) no past-year attempt. Univariate results showed that response inhibition and memory recognition were significantly related to suicide attempt recency. Post-hoc pairwise tests showed that participants with a past-week suicide attempt showed greater impairments than those without a past-year attempt. Multivariate tests showed the same pattern of results, adjusting for age, suicide attempts prior to past year, mood disturbance, and suicidal ideation. These results show that neurocognitive assessment of response inhibition and memory recognition shows sensitivity to the recency of a suicide attempt. While future prospective studies are needed, results suggest that phasic neurocognitive deficits may serve as objective markers of short-term suicide risk.


Assuntos
Transtornos Neurocognitivos/diagnóstico , Testes Neuropsicológicos/normas , Ideação Suicida , Tentativa de Suicídio/psicologia , Adulto , Feminino , Humanos , Masculino , Transtornos Neurocognitivos/psicologia , Estudos Prospectivos , Fatores de Risco
12.
Nat Rev Dis Primers ; 5(1): 74, 2019 10 24.
Artigo em Inglês | MEDLINE | ID: mdl-31649257

RESUMO

Although recent years have seen large decreases in the overall global rate of suicide fatalities, this trend is not reflected everywhere. Suicide and suicidal behaviour continue to present key challenges for public policy and health services, with increasing suicide deaths in some countries such as the USA. The development of suicide risk is complex, involving contributions from biological (including genetics), psychological (such as certain personality traits), clinical (such as comorbid psychiatric illness), social and environmental factors. The involvement of multiple risk factors in conveying risk of suicide means that determining an individual's risk of suicide is challenging. Improving risk assessment, for example, by using computer testing and genetic screening, is an area of ongoing research. Prevention is key to reduce the number of suicide deaths and prevention efforts include universal, selective and indicated interventions, although these interventions are often delivered in combination. These interventions, combined with psychological (such as cognitive behavioural therapy, caring contacts and safety planning) and pharmacological treatments (for example, clozapine and ketamine) along with coordinated social and public health initiatives, should continue to improve the management of individuals who are suicidal and decrease suicide-associated morbidity.


Assuntos
Suicídio/psicologia , Depressão/complicações , Depressão/tratamento farmacológico , Depressão/psicologia , Humanos , Medição de Risco/métodos , Fatores de Risco , Suicídio/estatística & dados numéricos
13.
J Child Psychol Psychiatry ; 60(10): 1112-1122, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31127612

RESUMO

BACKGROUND: Knowledge is lacking on the long-term outcomes of treatment for adolescents with repetitive suicidal and self-harming behavior. Furthermore, the pathways through which treatment effects may operate are poorly understood. Our aims were to investigate enduring treatment effects of dialectical behavior therapy adapted for adolescents (DBT-A) compared to enhanced usual care (EUC) through a prospective 3-year follow-up and to analyze possible mediators of treatment effects. METHODS: Interview and self-report data covering the follow-up interval were collected from 92% of the adolescents who participated in the original randomized trial. TRIAL REGISTRATION NUMBER: NCT01593202 (www.ClinicalTrials.gov). RESULTS: At the 3-year follow-up DBT-A remained superior to EUC in reducing the frequency of self-harm, whereas for suicidal ideation, hopelessness and depressive and borderline symptoms and global level of functioning there were no inter-group differences, with no sign of symptom relapse in either of the participant groups. A substantial proportion (70.8%) of the effect of DBT-A on self-harm frequency over the long-term was mediated through a reduction in participants' experience of hopelessness during the trial treatment phase. Receiving more than 3 months follow-up treatment after completion of the trial treatment was associated with further enhanced outcomes in patients who had received DBT-A. CONCLUSIONS: There were on average no between-group differences at the 3-year follow-up in clinical outcomes such as suicidal ideation, hopelessness, depressive and borderline symptoms. The significantly and consistently larger long-term reduction in self-harm behavior for adolescents having received DBT-A compared with enhanced usual care, however, suggests that DBT-A may be a favorable treatment alternative for adolescents with repetitive self-harming behavior.


Assuntos
Comportamento do Adolescente , Terapia do Comportamento Dialético , Avaliação de Resultados em Cuidados de Saúde , Processos Psicoterapêuticos , Comportamento Autodestrutivo/terapia , Adolescente , Feminino , Seguimentos , Humanos , Masculino , Ideação Suicida , Prevenção do Suicídio
14.
Int J Neuropsychopharmacol ; 22(5): 329-338, 2019 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-30927011

RESUMO

BACKGROUND: Abnormalities in the hypothalamic-pituitary-adrenal axis, serotonergic system, and stress response have been linked to the pathogenesis of major depressive disorder. State-dependent hyper-reactivity of the hypothalamic-pituitary-adrenal axis is seen in major depressive disorder, and higher binding to the serotonin 1A receptor is observed as a trait in both currently depressed and remitted untreated major depressive disorder. Here, we sought to examine whether a relationship exists between cortisol secretion in response to a stressor and serotonin 1A receptor binding throughout the brain, both in healthy controls and participants with major depressive disorder. METHODS: Research participants included 42 medication-free, depressed subjects and 31 healthy volunteers. Participants were exposed to either an acute, physical stressor (radial artery catheter insertion) or a psychological stressor (Trier Social Stress Test). Levels of serotonin 1A receptor binding on positron emission tomography with [11C]WAY-100635 were also obtained from all participants. The relationship between [11C]WAY-100635 binding and cortisol was examined using mixed linear effects models with group (major depressive disorder vs control), cortisol, brain region, and their interactions as fixed effects and subject as a random effect. RESULTS: We found a positive correlation between post-stress cortisol measures and serotonin 1A receptor ligand binding levels across multiple cortical and subcortical regions, independent of diagnosis and with both types of stress. The relationship between [11C]WAY-100635 binding and cortisol was homogenous across all a priori brain regions. In contrast, resting cortisol levels were negatively correlated with serotonin 1A receptor ligand binding levels independently of diagnosis, except in the RN. There was no significant difference in cortisol between major depressive disorder participants and healthy volunteers with either stressor. Similarly, there was no correlation between cortisol and depression severity in either stressor group. CONCLUSIONS: This study suggests that there may be a common underlying mechanism that links abnormalities in the serotonin system and hypothalamic-pituitary-adrenal axis hyper-reactivity to stress. Future studies need to determine how hypothalamic-pituitary-adrenal axis dysfunction affects mood to increase the risk of suicide in major depression.


Assuntos
Encéfalo/metabolismo , Transtorno Depressivo Maior/metabolismo , Hidrocortisona/metabolismo , Receptor 5-HT1A de Serotonina/metabolismo , Estresse Fisiológico/fisiologia , Estresse Psicológico/metabolismo , Adolescente , Adulto , Idoso , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Radioisótopos de Carbono , Cateterismo , Transtorno Depressivo Maior/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Dor Processual/diagnóstico por imagem , Dor Processual/metabolismo , Piperazinas , Tomografia por Emissão de Pósitrons , Piridinas , Compostos Radiofarmacêuticos , Descanso , Estresse Psicológico/diagnóstico por imagem , Adulto Jovem
15.
J Psychiatr Res ; 95: 253-259, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28923719

RESUMO

Suicide is the second leading cause of death among undergraduate students, with an annual rate of 7.5 per 100,000. Suicidal behavior (SB) is complex and heterogeneous, which might be explained by there being multiple etiologies of SB. Data-driven identification of distinct at-risk subgroups among undergraduates would bolster this argument. We conducted a latent class analysis (LCA) on survey data from a large convenience sample of undergraduates to identify subgroups, and validated the resulting latent class model on a sample of graduate students. Data were collected through the Interactive Screening Program deployed by the American Foundation for Suicide Prevention. LCA identified 6 subgroups from the undergraduate sample (N = 5654). In the group with the most students reporting current suicidal thoughts (N = 623, 66% suicidal), 22.5% reported a prior suicide attempt, and 97.6% endorsed moderately severe or worse depressive symptoms. Notably, LCA identified a second at-risk group (N = 662, 27% suicidal), in which only 1.5% of respondents noted moderately severe or worse depressive symptoms. When graduate students (N = 1138) were classified using the model, a similar frequency distribution of groups was found. Finding multiple replicable groups at-risk for suicidal behavior, each with a distinct prevalence of risk factors, including a group of students who would not be classified as high risk with depression-based screening, is consistent with previous studies that identified multiple potential etiologies of SB.


Assuntos
Depressão/epidemiologia , Transtorno Depressivo/epidemiologia , Educação de Pós-Graduação/estatística & dados numéricos , Estudantes/estatística & dados numéricos , Ideação Suicida , Tentativa de Suicídio/estatística & dados numéricos , Universidades/estatística & dados numéricos , Adolescente , Adulto , Idoso , Interpretação Estatística de Dados , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estados Unidos/epidemiologia , Adulto Jovem
16.
J Am Acad Child Adolesc Psychiatry ; 55(4): 295-300, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27015720

RESUMO

OBJECTIVE: We conducted a 1-year prospective follow-up study of posttreatment clinical outcomes in adolescents with recent and repetitive self-harm who had been randomly allocated to receive 19 weeks of either dialectical behavior therapy adapted for adolescents (DBT-A) or enhanced usual care (EUC) at community child and adolescent psychiatric outpatient clinics. METHOD: Assessments of self-harm, suicidal ideation, depression, hopelessness, borderline symptoms, and global level of functioning were made at the end of the 19-week treatment period and at follow-up 1 year later. Altogether 75 of the 77 (97%) adolescents participated at both time points. Frequencies of hospitalizations, emergency department visits and other use of mental health care during the 1-year follow-up period were recorded. Change analyses were performed using mixed effects linear spline regression and mixed effect Poisson regression with robust variance. RESULTS: Over the 52-week follow-up period, DBT-A remained superior to EUC in reducing the frequency of self-harm. For other outcomes such as suicidal ideation, hopelessness, and depressive or borderline symptoms and for the global level of functioning, inter-group differences apparent at the 19-week assessment were no longer observed, mainly due to participants in the EUC group having significantly improved on these dimensions over the follow-up year, whereas DBT-A participants remained unchanged. CONCLUSION: A stronger long-term reduction in self-harm and a more rapid recovery in suicidal ideation, depression, and borderline symptoms suggest that DBT-A may be a favorable treatment alternative for adolescents with repetitive self-harming behavior. CLINICAL TRIAL REGISTRATION INFORMATION: Treatment for Adolescents With Deliberate Self Harm; http://clinicaltrials.gov/; NCT00675129.


Assuntos
Terapia Comportamental/métodos , Transtorno da Personalidade Borderline/terapia , Comportamento Autodestrutivo/terapia , Suicídio/psicologia , Adolescente , Transtorno da Personalidade Borderline/psicologia , Feminino , Seguimentos , Humanos , Masculino , Estudos Prospectivos , Comportamento Autodestrutivo/psicologia , Ideação Suicida , Tentativa de Suicídio/psicologia , Resultado do Tratamento
17.
J Affect Disord ; 190: 187-192, 2016 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-26519639

RESUMO

BACKGROUND: Many, but not all studies of suicide attempters' cortisol response to stress-either social stress or pharmacological challenge-report an exaggerated response. Recent studies of resting baseline cortisol in past suicide attempters, however, have found lower baseline levels. METHODS: In this study, baseline salivary cortisols were obtained prior to a stress procedure from adults with lifetime diagnoses of a mood disorder (N=69), 31.9% of whom had made a prior suicide attempt. Data were collected during the piloting of this stress procedure, at various times of day and with/without an additional confederate in the room. RESULTS: Adjusting for procedural, demographic and clinical variables that affect salivary cortisol levels-including time of day of sampling, order of procedure with respect to other assessments, past alcohol abuse, current medication use, and bipolar diagnosis-past suicide attempters had lower baseline cortisol levels compared to non-attempters. LIMITATIONS: This is a pilot study with modest sample sizes using statistical, rather than experimental control of numerous variables affecting salivary cortisol levels. CONCLUSIONS: Results confirm previous studies. Low baseline cortisol levels have been associated with childhood adversity and externalizing disorders, suggesting a potential role in reducing inhibitions for risky and dangerous behaviors. Further research is needed to more fully characterize these associations and their role in suicidal behavior risk.


Assuntos
Hidrocortisona/análise , Transtornos do Humor/metabolismo , Saliva/química , Tentativa de Suicídio/psicologia , Adulto , Transtorno Depressivo/metabolismo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Assunção de Riscos , Saliva/metabolismo , Estresse Psicológico/metabolismo
18.
Am J Psychiatry ; 171(12): 1259-77, 2014 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-25263730

RESUMO

OBJECTIVE: Suicide, a major cause of death worldwide, has distinct biological underpinnings. The authors review and synthesize the research literature on biomarkers of suicide, with the aim of using the findings of these studies to develop a coherent model for the biological diathesis for suicide. METHOD: The authors examined studies covering a large range of neurobiological systems implicated in suicide. They provide succinct descriptions of each system to provide a context for interpreting the meaning of findings in suicide. RESULTS: Several lines of evidence implicate dysregulation in stress response systems, especially the hypothalamic-pituitary-adrenal axis, as a diathesis for suicide. Additional findings related to neuroinflammatory indices, glutamatergic function, and neuronal plasticity at the cellular and circuitry level may reflect downstream effects of such dysregulation. Whether serotonergic abnormalities observed in individuals who have died by suicide are independent of stress response abnormalities is an unresolved question. CONCLUSIONS: The most compelling biomarkers for suicide are linked to altered stress responses and their downstream effects, and to abnormalities in the serotonergic system. Studying these systems in parallel and in the same populations may elucidate the role of each and their interplay, possibly leading to identification of new treatment targets and biological predictors.


Assuntos
Biomarcadores/metabolismo , Encéfalo/metabolismo , Sistema Hipotálamo-Hipofisário/metabolismo , Locus Cerúleo/metabolismo , Plasticidade Neuronal , Neurotransmissores/metabolismo , Sistema Hipófise-Suprarrenal/metabolismo , Estresse Psicológico/metabolismo , Suicídio , Encéfalo/fisiopatologia , Dopamina/metabolismo , Regulação da Expressão Gênica , Ácido Glutâmico/metabolismo , Humanos , Sistema Hipotálamo-Hipofisário/fisiopatologia , Inflamação/metabolismo , Inflamação/fisiopatologia , Locus Cerúleo/fisiopatologia , Norepinefrina/metabolismo , Sistema Hipófise-Suprarrenal/fisiopatologia , Serotonina/metabolismo , Estresse Psicológico/fisiopatologia , Ácido gama-Aminobutírico/metabolismo
19.
J Am Acad Child Adolesc Psychiatry ; 53(10): 1082-91, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25245352

RESUMO

OBJECTIVE: We examined whether a shortened form of dialectical behavior therapy, dialectical behavior therapy for adolescents (DBT-A) is more effective than enhanced usual care (EUC) to reduce self-harm in adolescents. METHOD: This was a randomized study of 77 adolescents with recent and repetitive self-harm treated at community child and adolescent psychiatric outpatient clinics who were randomly allocated to either DBT-A or EUC. Assessments of self-harm, suicidal ideation, depression, hopelessness, and symptoms of borderline personality disorder were made at baseline and after 9, 15, and 19 weeks (end of trial period), and frequency of hospitalizations and emergency department visits over the trial period were recorded. RESULTS: Treatment retention was generally good in both treatment conditions, and the use of emergency services was low. DBT-A was superior to EUC in reducing self-harm, suicidal ideation, and depressive symptoms. Effect sizes were large for treatment outcomes in patients who received DBT-A, whereas effect sizes were small for outcomes in patients receiving EUC. Total number of treatment contacts was found to be a partial mediator of the association between treatment and changes in the severity of suicidal ideation, whereas no mediation effects were found on the other outcomes or for total treatment time. CONCLUSION: DBT-A may be an effective intervention to reduce self-harm, suicidal ideation, and depression in adolescents with repetitive self-harming behavior. Clinical trial registration information-Treatment for Adolescents With Deliberate Self Harm; http://ClinicalTrials.gov/; NCT00675129.


Assuntos
Terapia Comportamental/métodos , Comportamento Autodestrutivo/prevenção & controle , Tentativa de Suicídio/prevenção & controle , Adolescente , Criança , Feminino , Humanos , Masculino , Método Simples-Cego , Resultado do Tratamento
20.
J Clin Psychiatry ; 73(6): 813-20, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22795206

RESUMO

OBJECTIVE: To examine the demographic and clinical correlates of nonsuicidal self-injury. METHOD: This is a cross-sectional analysis of a longitudinal cohort study of the familial transmission of suicidal behavior, conducted at referral centers in Pittsburgh, Pennsylvania, and New York, New York. Participants included 291 probands with DSM-IV mood disorder, one-half of whom had attempted suicide, and 507 of their offspring. The primary outcome assessed was nonsuicidal self-injury in offspring. Psychosocial correlates of nonsuicidal self-injury were determined by comparing personal, parental, and familial characteristics of offspring with and without nonsuicidal self-injury, assessed using a variety of interview and self-report measures at study entry. Data were collected between August 1998 and August 2007. RESULTS: Of 507 offspring, 7.7% (n=39) had engaged in nonsuicidal self-injury. The most salient correlates of nonsuicidal self-injury on multivariate logistic regression were diagnosis of depression (OR=3.78, P<.001) and greater aggression (OR=1.07, P=.01), depressive symptoms (OR=1.59, P=.009), and suicidal ideation (OR=1.24, P=.004). Parental history of abuse, as well as family histories of suicide attempt and nonsuicidal self-injury, was noncontributory. CONCLUSIONS: Nonsuicidal self-injury is associated with the presence and severity of depression, suicidal ideation, and behavioral dysregulation. On multivariate analysis, only individual predictors remained significant; this result is distinct from that for correlates of suicide attempt reported in this sample, for which familial variables played a significant role.


Assuntos
Filho de Pais com Deficiência/psicologia , Saúde da Família/estatística & dados numéricos , Transtornos do Humor , Comportamento Autodestrutivo/psicologia , Adolescente , Adulto , Agressão/psicologia , Criança , Filho de Pais com Deficiência/estatística & dados numéricos , Estudos Transversais , Depressão/psicologia , Feminino , Humanos , Estudos Longitudinais , Masculino , New York/epidemiologia , Pais/psicologia , Pennsylvania/epidemiologia , Fatores de Risco , Autorrelato , Comportamento Autodestrutivo/epidemiologia , Ideação Suicida
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