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Do suicidal desire and facets of capability for suicide predict future suicidal behavior? A longitudinal test of the desire-capability hypothesis.
Journal of Psychopathology and Clinical Science ( IF 3.1 ) Pub Date : 2021-04-01 , DOI: 10.1037/abn0000595
Jessica D Ribeiro 1 , Kathryn P Linthicum 1 , Thomas E Joiner 1 , Xieyining Huang 1 , Lauren M Harris 1 , Chloe P Bryen 1
Affiliation  

Capability-based models propose that people die by suicide because they want to, and they can. Despite the intuitive appeal of this hypothesis, longitudinal evidence testing its predictive validity has been limited. This study tested the predictive validity of the desire-capability hypothesis. A total of 1,020 self-injuring and/or suicidal adults were recruited worldwide online from suicide, self-injury, and mental health web forums. After baseline assessment, participants completed follow-up assessments at 3, 14, and 28 days after baseline. Participant retention was high (>90%) across all follow-up assessments. Analyses examined the effect of the statistical interaction between suicidal desire and indices of capability for suicide on future nonfatal suicide attempts. Main analyses focused on the fearlessness about death facet of capability for suicide; exploratory analyses examined preparations for suicide. Logistic regression was used to predict suicide attempt status at follow-up; zero-inflated negative binomial models were implemented to predict the frequency of nonfatal suicide attempts at follow-up. Results were consistent across models, finding very little evidence of the desire-capability interaction as a significant predictor of suicide attempt status or frequency at follow-up. We close with a discussion of the limitations of this study as well as the implications of our findings for future suicide science. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译:

自杀的欲望和自杀能力的各个方面是否可以预测未来的自杀行为?需求能力假设的纵向检验。

基于能力的模型建议人们死于自杀,因为他们愿意并且可以。尽管此假设具有直观吸引力,但检验其预测有效性的纵向证据仍然有限。这项研究检验了需求能力假设的预测有效性。在全球范围内,通过自杀,自我伤害和心理健康网络论坛在线招募了1,020名自我伤害和/或自杀的成年人。基线评估后,参与者在基线后3、14和28天完成随访评估。在所有后续评估中,参与者的保留率都很高(> 90%)。分析检查了自杀意愿和自杀能力指标之间的统计相互作用对未来非致命自杀企图的影响。主要分析集中于对自杀能力死亡方面的无所畏惧;探索性分析检查了自杀准备。Logistic回归用于预测随访中的自杀未遂状态。采用零膨胀负二项式模型来预测随访中非致命性自杀未遂的频率。模型之间的结果是一致的,几乎没有证据表明欲望与能力的相互作用是随访中自杀未遂状态或发生频率的重要预测指标。最后,我们讨论了这项研究的局限性以及我们的发现对未来自杀科学的影响。(PsycInfo数据库记录(c)2021 APA,保留所有权利)。Logistic回归用于预测随访中的自杀未遂状态。采用零膨胀负二项式模型来预测随访中非致命性自杀未遂的频率。模型之间的结果是一致的,几乎没有证据表明欲望与能力的相互作用是随访中自杀未遂状态或发生频率的重要预测指标。最后,我们讨论了这项研究的局限性以及我们的发现对未来自杀科学的影响。(PsycInfo数据库记录(c)2021 APA,保留所有权利)。Logistic回归用于预测随访中的自杀未遂状态。采用零膨胀负二项式模型来预测随访中非致命性自杀未遂的频率。模型之间的结果是一致的,几乎没有证据表明欲望与能力的相互作用是随访中自杀未遂状态或发生频率的重要预测指标。最后,我们讨论了这项研究的局限性以及我们的发现对未来自杀科学的影响。(PsycInfo数据库记录(c)2021 APA,保留所有权利)。发现很少有证据表明欲望与能力的相互作用是随访中自杀未遂状态或发生频率的重要预测指标。最后,我们讨论了这项研究的局限性以及我们的发现对未来自杀科学的影响。(PsycInfo数据库记录(c)2021 APA,保留所有权利)。发现很少有证据表明欲望与能力的相互作用是随访中自杀未遂状态或发生频率的重要预测指标。最后,我们讨论了这项研究的局限性以及我们的发现对未来自杀科学的影响。(PsycInfo数据库记录(c)2021 APA,保留所有权利)。
更新日期:2021-04-01
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