Laboratório de Psiquiatria Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil.
Department of Psychology, Texas State University, San Marcos, TX, USA.
Braz J Psychiatry. 2024;46:e20233270. doi: 10.47626/1516-4446-2023-3270. Epub 2024 Mar 11.
To test the factor structure, reliability, and validity of the Brazilian version of the Abbreviated Suicidal Narrative Inventory (SNI-38).
We used an anonymous online questionnaire of the SNI-38 and self-report measures administered between November 2020 and October 2021 in the Brazilian community. Participants were recruited through social media advertisements. Confirmatory factor analysis (CFA) was performed to test the factor structure of the SNI-38. In addition, we assessed internal consistency and convergent validity against stressful life events, suicide crisis syndrome, suicidal ideation, and suicide attempts.
A total of 2,660 participants were included. The eight-factor model of the SNI-38 had a good model fit (?2[637] = 7,473.98, p < 0.001, comparative fit index [CFI] = 0.99, Tucker-Lewis index [TLI] = 0.99, root mean squared error of approximation [RMSEA] = 0.07, standardized root mean residual [SRMR] = 0.06). Notably, all items were significantly and positively loaded onto their respective factors (factor loadings = 0.45). The reliability of all subscales except for goal disengagement ranged from good to high. Furthermore, all subscales except goal disengagement showed positive correlations with variables such as suicide crisis syndrome, stressful life events, lifetime/past month suicidal ideation, and lifetime suicide attempts.
These findings provide preliminary support for the validity of the Brazilian version of the SNI-38 as an appropriate, valid instrument for measuring suicidal narratives in Brazilian individuals.
检验巴西版简短叙事自杀清单（SNI-38）的结构因素、信度和效度。
我们于 2020 年 11 月至 2021 年 10 月在巴西社区使用 SNI-38 的匿名在线问卷和自我报告测量进行了此项研究。参与者通过社交媒体广告招募。采用验证性因子分析（CFA）检验 SNI-38 的结构因素。此外，我们评估了与生活应激事件、自杀危机综合征、自杀意念和自杀未遂的内部一致性和聚合效度。
共纳入 2660 名参与者。SNI-38 的 8 因素模型具有良好的模型拟合（?2[637] = 7473.98，p < 0.001，比较拟合指数 [CFI] = 0.99，Tucker-Lewis 指数 [TLI] = 0.99，近似均方根误差 [RMSEA] = 0.07，标准化均方根残差 [SRMR] = 0.06）。值得注意的是，所有条目均显著正向加载于各自的因子（因子负荷= 0.45）。除目标脱离外，所有分量表的信度均为良好至高度。此外，除目标脱离外，所有分量表均与自杀危机综合征、生活应激事件、终生/过去 1 个月自杀意念和终生自杀未遂等变量呈正相关。
这些发现初步支持了巴西版 SNI-38 的有效性，它是一种适合巴西个体测量自杀叙事的有效工具。
