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Kaurin A, Wright AGC, Porta G, Hamilton E, Poling K, Bero K, Brent D, Goldstein TR. Weekly links among irritability and suicidal thoughts and behaviors in high-risk youth. J Child Psychol Psychiatry 2024. [PMID: 38651278 DOI: 10.1111/jcpp.13988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/20/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Previous studies demonstrate a link between irritability and suicidal thoughts and behaviors (STBs) in youth samples. However, they have mostly assessed irritability in community samples and as a largely dispositional (i.e. trait-like) construct. Thus, it remains unclear to what extent links between irritability and STBs reflect within-person processes of elevated risk in clinically meaningful time periods. METHODS The present study used clinical data from 689 adolescents aged 12-19 years attending a total of 6,128 visits at a specialty Intensive Outpatient Program for depressed and suicidal youth to examine patterns in weekly assessments of irritability and STBs throughout treatment, including associations among trends and fluctuations departing from these trends via multilevel structural equation modeling. Youth completed self-report measures of irritability, depression, and STBs weekly as part of standard IOP clinical care. RESULTS Overall, two-thirds of variance in weekly irritable mood was accounted for by between-person differences and the remaining portion by weekly fluctuations. After controlling for depression, during weeks when youth were more irritable they experienced increased STBs. Rates of change in irritability and STBs tended to track together at early stages of treatment, but these effects were generally accounted for by depression severity. CONCLUSIONS Our results suggest that although changes in STBs are best accounted for by depression, irritability can be understood as a specific, proximal risk factor for youth STBs that exacerbates youth STBs in clinically informative timeframes above and beyond depression.
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Affiliation(s)
- Aleksandra Kaurin
- Department of Psychology, University of Wuppertal, Wuppertal, Germany
| | - Aidan G C Wright
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Giovanna Porta
- Western Psychiatric Hospital, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Edward Hamilton
- Western Psychiatric Hospital, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Kimberly Poling
- Western Psychiatric Hospital, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Kelsey Bero
- Western Psychiatric Hospital, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - David Brent
- Western Psychiatric Hospital, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Tina R Goldstein
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
- Western Psychiatric Hospital, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Toh SHY, Wan MJS, Kroneman LM, Nyein N, Wong JCM. Temperament and adolescent suicide attempts: a case-control study with multi-ethnic Asian adolescents. BMC Psychiatry 2023; 23:434. [PMID: 37322458 PMCID: PMC10267549 DOI: 10.1186/s12888-023-04914-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Suicide is the leading cause of death for adolescents in several parts of Asia, including Singapore. This study examines the relationship between temperament and youth suicide attempts in a sample of multi-ethnic Singaporean adolescents. METHODS A case-control design compared 60 adolescents (Mage = 16.40, SDage = 2.00) with a recent suicide attempt (i.e., past 6 months) with 58 adolescents (Mage = 16.00, SDage = 1.68) without any history of suicide attempts. Presence of suicide attempts was established using the semi-structured interviewer-administered Columbia Suicide Severity Rating Scale. Participants also completed self-report measures on temperament traits, psychiatric diagnoses, stressful life events, and perceived parental rejection in an interview-based format. RESULTS Psychiatric comorbidity, recent stressful life events, perceived parental rejection, and all five "difficult temperament" traits, were significantly overrepresented among adolescent cases relative to healthy controls. Adjusted logistic regression models revealed significant associations between suicide attempt, MDD comorbidity (OR: 10.7, 95% Cl: (2.24-51.39)), "negative mood" trait (OR: 1.12-1.18, 95% Cl: (1.00-1.27)), and the interaction term of "positive mood" and "high adaptability" traits (OR: 0.943 - 0.955, 95% Cl: (0.900 - 0.986)). Specifically, "positive mood" predicted lower likelihood of a suicide attempt when "adaptability" was high (OR: 0.335 - 0.342, 95% Cl: (0.186 - 0.500)) but not low (OR: 0.968 - 0.993, 95% Cl: (0.797 - 1.31)). CONCLUSION Temperament screening may be important to identify adolescents at higher or lower risk of suicide at an early stage. More longitudinal and neurobiological research converging on these temperament findings will be helpful in ascertaining temperament screening as an effective suicide prevention methodology for adolescents.
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Affiliation(s)
- Sean H Y Toh
- NUS Mind-Science Centre, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, Singapore.
- Research Department, Intellect Pte Ltd, Tanjong Pagar, Singapore.
| | - Michelle J S Wan
- NUS Mind-Science Centre, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, Singapore
| | - Leoniek M Kroneman
- NUS Mind-Science Centre, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, Singapore
| | - N Nyein
- Department of Psychological Medicine, National University Health Systems, Queenstown, Singapore
| | - John C M Wong
- NUS Mind-Science Centre, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, Singapore
- Department of Psychological Medicine, National University Health Systems, Queenstown, Singapore
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Liu Q, Nestor BA, Cole DA. Differential associations of phasic and tonic irritability to suicidality among U.S. adults. J Affect Disord 2021; 292:391-397. [PMID: 34139413 DOI: 10.1016/j.jad.2021.05.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 05/23/2021] [Accepted: 05/30/2021] [Indexed: 10/21/2022]
Abstract
Research on the relations between irritability and suicidality among adults has rarely compared or differentiated between tonic versus phasic irritability. The current cross-sectional study investigated the role of both tonic and phasic irritability in relation to lifetime suicidal ideation, plans, and attempts. The study included adult participants who completed the suicidality module from the National Comorbidity Survey - Replication (NCS-R) (N = 7683 for suicidal ideation and N = 1223 for suicidal plan and attempt). The NCS-R used lay-administered, standardized diagnostic interviews. Phasic and tonic irritability were assessed with individual screener items from the World Health Organization Composite International Diagnostic Interviews (CIDI). The current study used logistic regression, weighted Cox proportional hazard model, and multinomial logit regression, adjusting for sex, race/ethnicity, age, education, and marital status. Both types of irritability were included simultaneously in the models. Results indicated that both types of irritability were significantly associated with increased odds of suicidal ideation (phasic: Odds Ratio 2.72 [2.35,3.14]); tonic: OR 2.34 [2.04,2.68]), age of first-time suicidal ideation (phasic: Adjusted Hazard Ratio 2.87 [2.27, 3.63]; tonic: AHR 2.12 [1.76,2.54]), and suicide attempt (phasic: OR 1.53 [1.13,2.07]); tonic: OR 1.44 [1.11,1.89]). Only tonic but not phasic irritability was associated with suicide plans (OR 1.39 [1.08,1.79]). When suicide attempts were divided into those that were impulsive versus planned and compared them to no suicide attempt, both types of irritability were associated planned attempts, (phasic: OR 1.53 [1.13,2.07]); tonic: OR 1.44 [1.11,1.89]) but only phasic irritability was related to impulsive attempts (OR 1.70 [1.10,2.64]). Phasic and tonic irritability show differential relations to and can serve as differential markers for suicide-related outcomes in adults.
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Affiliation(s)
- Qimin Liu
- Department of Psychology and Human Development, Vanderbilt University, USA.
| | - Bridget A Nestor
- Department of Psychology and Human Development, Vanderbilt University, USA
| | - David A Cole
- Department of Psychology and Human Development, Vanderbilt University, USA
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Rawat S, Rajkumari S, Joshi PC, Khan MA, Saraswathy KN. Who dies and who survives? Investigating the difference between suicide decedents and suicide attempters. EGYPTIAN JOURNAL OF FORENSIC SCIENCES 2019. [DOI: 10.1186/s41935-019-0115-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Orri M, Perret LC, Turecki G, Geoffroy MC. Association between irritability and suicide-related outcomes across the life-course. Systematic review of both community and clinical studies. J Affect Disord 2018; 239:220-233. [PMID: 30025311 DOI: 10.1016/j.jad.2018.07.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/25/2018] [Accepted: 07/03/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Irritability is gaining considerable attention as a risk factor for suicide-related outcomes (suicide mortality, attempt, and ideation). However, the evidence of this association is scant. We conducted a systematic review of the evidence regarding the associations between irritability and suicide-related outcomes across the life-course. METHODS We conducted a systematic search on Medline and PsycINFO (up to January 2018) for original articles published in English investigating the association between irritability and suicide-related outcomes. Two researchers independently screened the articles, assessed the quality of the evidence (New-Castle-Ottawa Scale) and extracted study characteristics. RESULTS Thirty-nine studies were retrieved, most were of low/medium quality. Twelve assessed irritability in childhood/adolescence (6 in community samples, 6 in clinical samples) and 27 in adulthood (7 in community samples, 20 in clinical samples). In both childhood/adolescence and adult samples, most community-based studies reported a positive association between irritability and suicidal ideation and/or attempt, while clinical studies reported mixed findings. More specifically, in clinical studies, the association of irritability with suicide-related outcomes (i) was not supported among adult depressed patients, (ii) findings were inconsistent in adult bipolar patients, (iii) for inpatients/outpatients with various psychiatric disorders/conditions, association was observed in adulthood but not in childhood/adolescence. LIMITATIONS Differences in methodology and definition/measurement of irritability limited the comparability of included studies. CONCLUSIONS Although irritability has been proposed as a promising transdiagnostic factor associated with suicide-related outcomes, the absence of consensus in the definition of irritability (vs anger or reactive/impulsive aggression), the poor methodological quality, and the lack of developmental considerations mitigate the conclusions.
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Affiliation(s)
- Massimiliano Orri
- McGill Group for Suicide Studies, Douglas Mental Health University Institute & Department of Psychiatry, McGill University, Montreal, Canada
| | - Lea C Perret
- McGill Group for Suicide Studies, Douglas Mental Health University Institute & Department of Psychiatry, McGill University, Montreal, Canada
| | - Gustavo Turecki
- McGill Group for Suicide Studies, Douglas Mental Health University Institute & Department of Psychiatry, McGill University, Montreal, Canada
| | - Marie-Claude Geoffroy
- Department of Educational and Counselling Psychology, McGill University, Montreal, Canada.
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Efstathiou V, Papadopoulou A, Christodoulou C, Gournellis R, Michopoulos I, Ferentinos P, Papageorgiou C, Douzenis A. The Relationship between Hopelessness and Clinical Characteristics of Hospitalized Patients with Recent Suicide Attempt. Issues Ment Health Nurs 2018; 39:876-882. [PMID: 30252555 DOI: 10.1080/01612840.2018.1491656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
This study aimed to assess hopelessness in 170 hospitalized individuals with recent suicide attempt and examine its association with patients' characteristics, with a view to improving awareness in health professionals and especially nurses, who are among the first to take care of these patients. Participants completed Beck Hopelessness Scale and Beck Depression Inventory. More than half (51.18%) experienced moderate-to-severe hopelessness. A multiple linear regression analysis showed that age, attempted suicide method, past suicide attempt, and psychiatric diagnosis contributed statistically significantly to hopelessness prediction. Hopelessness assessment could efficiently help health professionals to minimize both inpatient suicide and suicidal acts after discharge.
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Affiliation(s)
- Vasiliki Efstathiou
- a Second Department of Psychiatry , National and Kapodistrian University of Athens, Medical School "Attikon" University General Hospital , Athens , Greece
| | - Athanasia Papadopoulou
- a Second Department of Psychiatry , National and Kapodistrian University of Athens, Medical School "Attikon" University General Hospital , Athens , Greece
| | - Christos Christodoulou
- a Second Department of Psychiatry , National and Kapodistrian University of Athens, Medical School "Attikon" University General Hospital , Athens , Greece
| | - Rossetos Gournellis
- a Second Department of Psychiatry , National and Kapodistrian University of Athens, Medical School "Attikon" University General Hospital , Athens , Greece
| | - Ioannis Michopoulos
- a Second Department of Psychiatry , National and Kapodistrian University of Athens, Medical School "Attikon" University General Hospital , Athens , Greece
| | - Panagiotis Ferentinos
- a Second Department of Psychiatry , National and Kapodistrian University of Athens, Medical School "Attikon" University General Hospital , Athens , Greece
| | - Charalabos Papageorgiou
- b First Department of Psychiatry , National and Kapodistrian University of Athens, Medical School, "Eginition" Hospital , Athens , Greece
| | - Athanassios Douzenis
- a Second Department of Psychiatry , National and Kapodistrian University of Athens, Medical School "Attikon" University General Hospital , Athens , Greece
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Giupponi G, Innamorati M, Baldessarini RJ, De Leo D, de Giovannelli F, Pycha R, Conca A, Girardi P, Pompili M. Factors associated with suicide: Case-control study in South Tyrol. Compr Psychiatry 2018; 80:150-154. [PMID: 29091781 DOI: 10.1016/j.comppsych.2017.09.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/19/2017] [Accepted: 09/24/2017] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND As suicide is related to many factors in addition to psychiatric illness, broad and comprehensive risk-assessment for risk of suicide is required. This study aimed to differentiate nondiagnostic risk factors among suicides versus comparable psychiatric patients without suicidal behavior. METHODS We carried out a pilot, case-control comparison of 131 cases of suicide in South Tyrol matched for age and sex with 131 psychiatric controls, using psychological autopsy methods to evaluate differences in clinically assessed demographic, social, and clinical factors, using bivariate conditional Odds Risk comparisons followed by conditional regression modeling controlled for ethnicity. RESULTS Based on multivariable conditional regression modeling, suicides were significantly more likely to have experienced risk factors, ranking as: [a] family history of suicide or attempt≥[b] recent interpersonal stressors≥[c] childhood traumatic events≥[d] lack of recent clinician contacts≥[e] previous suicide attempt≥[f] non-Italian ethnicity, but did not differ in education, marital status, living situation, or employment, nor by psychiatric or substance-abuse diagnoses. CONCLUSIONS Both recent and early factors were associated with suicide, including lack of recent clinical care, non-Italian cultural subgroup-membership, familial suicidal behavior, and recent interpersonal distress.
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Affiliation(s)
| | | | - Ross J Baldessarini
- International Consortium for Mood & Psychotic Disorders Research, Mailman Research Center, McLean Hospital, Belmont, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Diego De Leo
- Australian Institute of Suicide Research and Prevention and Griffith University, Mt Gravatt, Qld, Australia
| | | | | | | | - Paolo Girardi
- Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Maurizio Pompili
- International Consortium for Mood & Psychotic Disorders Research, Mailman Research Center, McLean Hospital, Belmont, MA, USA; Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant'Andrea Hospital, Sapienza University of Rome, Rome, Italy.
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Suicidal Ideation vs. Suicide Attempts: Clinical and Psychosocial Profile Differences Among Depressed Patients: A Study on Personality Traits, Psychopathological Variables, and Sociodemographic Factors in 228 Patients. J Nerv Ment Dis 2017; 205:361-371. [PMID: 28225508 DOI: 10.1097/nmd.0000000000000667] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This study investigated whether personality traits, psychopathological characteristics, and sociodemographic factors in depressed patients differentiate patients with only suicidal thoughts from those who have attempted suicide. We investigated two groups of patients with an affective disorder: 198 patients with a suicide attempt within the last 3 months (sex ratio male to female, 1:1.3; mean age male to female, 44.8/44.7 years) and 30 patients without a suicide attempt but with suicidal thoughts (sex ratio male to female, 1:2; mean age male to female, 39.4/42.6 years) using a comprehensive measurement (Mini-International Neuropsychiatric Interview, Structured Clinical Interview for DSM-4 Axis II disorders, Hamilton Depression Scale, Beck Depression Inventory, State-Trait Anxiety Inventory, Hamilton Anxiety Scale, Brief Psychiatric Rating Scale, Clinical Global Impression Scale, Beck-Hopelessness Scale, Scale for Suicide Ideation, Impulsivity Rating Scale, Barratt Impulsivity Scale, Inventory for the Assessment of Aggression Factors, State-Trait Anger Expression Inventory, Ways of Coping Checklist). Several differences distinguished the two groups, namely, in personality traits such as anxiety or coping strategies and sociodemographics (e.g., education level). Personality traits, psychopathological characteristics, and sociodemographic factors are useful tools for assessing suicidal risk. Our findings encourage us to suggest that clinicians pay particular attention to sociodemographic variables such as separation/divorce and a lower education level when conducting risk assessments on suicidal patients.
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Séguin M, Robert M, Beauchamp G. Temperament and Character Profiles of Group-Based Suicide Cases. CRISIS 2017; 38:177-185. [DOI: 10.1027/0227-5910/a000430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract. Background: Personality and character traits may be a key predisposing factor to consider in the life course of people who are vulnerable to suicide. Aims: The aim of this study is first to explore the possible presence of different subgroups of suicide decedents based on developmental profiles of adversity, and secondly to examine the association of personality and character dimensions (covariates) with the trajectory outcome. Method: A total of 90 cases of suicide decedents were analyzed using growth mixture modeling (GMM). Results: Results generated two different life trajectories and identified specific temperament profiles. Subjects assigned to the trajectory of high burden of adversity demonstrated a greater predisposition for harm avoidance and those in the trajectory characterized by low burden of adversity displayed greater predisposition for self-directedness. Conclusion: Our results add to the literature by suggesting that different subgroups of suicide completers show a predisposition for either harm avoidance or self-directedness.
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Affiliation(s)
- Monique Séguin
- Département de psychoeducation et psychologie, Université du Québec en Outaouais, Gatineau, Canada
- McGill Group for Suicide Studies, Montréal, Canada
| | - Marie Robert
- Département de psychoeducation et psychologie, Université du Québec en Outaouais, Gatineau, Canada
| | - Guy Beauchamp
- Département de psychoeducation et psychologie, Université du Québec en Outaouais, Gatineau, Canada
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Baldessarini RJ, Vázquez GH, Tondo L. Affective temperaments and suicidal ideation and behavior in mood and anxiety disorder patients. J Affect Disord 2016; 198:78-82. [PMID: 27011363 DOI: 10.1016/j.jad.2016.03.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/29/2016] [Accepted: 03/05/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND Clinical characteristics proposed to be associated with suicidal risk include affective temperament types. We tested this proposal with two methods in a large sample of subjects with mood and anxiety disorders. METHODS We assessed consecutive, consenting subjects clinically for affective temperament types and by TEMPS-A self-ratings for associations of temperament with suicidal ideation and acts, using standard bivariate methods, and multivariate logistic regression models. RESULTS Among 2561 subjects (major depressive, 1171; bipolar, 919, anxiety disorders, 471), temperament-types and TEMPS-A (39-item Italian version) subscale scores differed by risk of suicidal acts or ideation. Suicidal acts and ideation were most associated with cyclothymic and dysthymic, and less with hyperthymic temperaments. These associations were sustained by multivariate modeling that included diagnosis, age, sex, and diagnosis. LIMITATIONS Not all subjects completed TEMPS-A self-ratings; clinical assessments of temperaments were not standardized, and long-term stability of temperament assessments was not tested. CONCLUSIONS The findings support and extend associations of cyclothymic-dysthymic temperaments with suicidal acts and ideation, whereas hyperthymic temperament may be protective.
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Affiliation(s)
- Ross J Baldessarini
- The International Consortium for Psychotic & Mood Disorders Research, McLean Hospital, Belmont, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Gustavo H Vázquez
- The International Consortium for Psychotic & Mood Disorders Research, McLean Hospital, Belmont, MA, United States; Department of Neuroscience, Palermo University, Buenos Aires, Argentina
| | - Leonardo Tondo
- The International Consortium for Psychotic & Mood Disorders Research, McLean Hospital, Belmont, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Lucio Bini Mood Disorders Centers, Cagliari, Rome, Italy.
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Tanabe S, Terao T, Shiotsuki I, Kanehisa M, Ishii K, Shigemitsu O, Fujiki M, Hoaki N. Anxious temperament as a risk factor of suicide attempt. Compr Psychiatry 2016; 68:72-7. [PMID: 27234186 DOI: 10.1016/j.comppsych.2016.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/02/2016] [Accepted: 04/01/2016] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Suicide has been reported to be associated with cyclothymic, irritable, depressive and anxious temperaments. In contrast, hyperthymic temperament has been reported to be protective against suicide. In the present study, we hypothesized that Japanese patients with suicide attempt may have higher scores of cyclothymic, irritable, depressive, and anxious temperaments but lower scores of hyperthymic temperament than non-suicidal patients. In order to examine this hypothesis, we investigated Japanese patients of a university emergency center. METHODS The association of temperament and suicide attempt was investigated in 116 patients referred to a university emergency center for intoxication or injury. Of them, 35 patients of suspected suicide attempt were categorized as 18 patients who intended to die with attempted suicide and suffered from self-inflicted but not fatal injury (Suicide Attempt II), 4 patients whose intention to die were undetermined although they suffered from self-inflicted injury (Undetermined Suicide-Related Behavior II), and 13 patients who had no intention to die although they suffered from self-inflicted injury (Self-Harm II). Logistic regression analyses and multiple regression analyses were used to identify factors associated with the present suicide attempt and the number of suicide attempts, respectively. RESULTS Anxious temperament scores were significantly and directly associated with Suicide Attempt II group whereas irritable temperament scores were associated with Self-Harm II group. CONCLUSION The present findings suggest that those with anxious temperament may have more suicide attempts than those with other temperaments, indicating anxious temperament as a risk factor of suicide attempt.
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Affiliation(s)
- Sanshi Tanabe
- Advanced Trauma, Emergency and Critical Care Center, Oita University Faculty of Medicine
| | - Takeshi Terao
- Department of Neuropsychiatry, Oita University Faculty of Medicine.
| | - Ippei Shiotsuki
- Advanced Trauma, Emergency and Critical Care Center, Oita University Faculty of Medicine; Department of Neuropsychiatry, Oita University Faculty of Medicine
| | - Masayuki Kanehisa
- Advanced Trauma, Emergency and Critical Care Center, Oita University Faculty of Medicine; Department of Neuropsychiatry, Oita University Faculty of Medicine
| | - Keisuke Ishii
- Advanced Trauma, Emergency and Critical Care Center, Oita University Faculty of Medicine
| | - Osamu Shigemitsu
- Advanced Trauma, Emergency and Critical Care Center, Oita University Faculty of Medicine
| | - Minoru Fujiki
- Department of Neurosurgery, Oita University Faculty of Medicine, Yufu, Japan
| | - Nobuhiko Hoaki
- Department of Neuropsychiatry, Oita University Faculty of Medicine; Hoaki hospital, Oita, Japan
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