School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 201800, China.
JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China.
Int J Environ Res Public Health. 2021 Jul 16;18(14):7583. doi: 10.3390/ijerph18147583.
Interpersonal theories of suicide suggest that the Interpersonal Needs Questionnaire (INQ) can be used to measure suicidal ideation, but few studies have focused on migrant people, a group with a high prevalence of suicidal ideation. The aim of this study was to validate the psychometric properties of the INQ-15 and its prediction of suicidal ideation among migrant industrial workers in China.
A stratified multi-stage sample of 2023 industrial workers was recruited from 16 factories in Shenzhen, China. There were 1805 nonlocal workers, which we defined as migrant workers with a mean age of 32.50 ± 8.43 years old who were 67.3% male. The structure of the Chinese version of the INQ-15 and its correlation and predictive utility for suicidal ideation were examined through factor analysis, the Item Response Theory, the M2 test, logistic regression, and receiver operating characteristic (ROC) analysis.
Different from studies among various samples in which a two-factor solution is identified, results within this sample indicated three factors: perceived burdensomeness, thwarted belongingness, and social isolation. The model fit statistics of three-factor INQ were 0.075 for RMSEA, 0.945 for CFI, 0.932 for TLI, and 0.067 for SRMR. The model standard estimated factor loadings ranged from 0.366 to 0.869. The summed scores of INQ and perceived burdensomeness predicted suicidal ideation after controlling for sociodemographic characteristics such as age, gender, and income with AUC of 0.733 (95% CI: 0.712/0.754) and 0.786 (95% CI: 0.766/0.804). In the meantime, the comparison of the predictive ability between INQ total scores and PB scores was significant with < 0.05.
The INQ has good psychometric properties and can be used to assess how migrant workers living in the Shenzhen perceive meeting interpersonal psychological needs and shows good predictive ability of suicidal ideation. Perceived burdensomeness appears to play a role in suicide and may be a point of intervention, yet the notable deviation from previous findings and the relative weakness of two of the other factors warrant further study.
人际理论认为自杀，可采用人际需求问卷（INQ）来衡量自杀意念，但很少有研究关注移民群体，该群体自杀意念发生率较高。本研究旨在验证 INQ-15 的心理测量特性及其对中国移民产业工人自杀意念的预测。
采用分层多阶段抽样方法，从中国深圳的 16 家工厂招募了 2023 名产业工人。其中 1805 名为非本地工人，我们将其定义为移民工人，平均年龄为 32.50±8.43 岁，男性占 67.3%。通过因子分析、项目反应理论、M2 检验、逻辑回归和接收者操作特征（ROC）分析，考察了中文版 INQ-15 的结构及其与自杀意念的相关性和预测效用。
与各种样本中识别出的两因素模型不同，该样本中结果表明存在三个因素：感知负担、受挫归属感和社会隔离。三因素 INQ 的模型拟合统计量分别为 RMSEA 为 0.075、CFI 为 0.945、TLI 为 0.932、SRMR 为 0.067。模型标准估计的因子负荷范围为 0.366-0.869。在控制年龄、性别和收入等社会人口特征后，INQ 和感知负担的总和分数预测自杀意念的 AUC 为 0.733（95%CI：0.712/0.754）和 0.786（95%CI：0.766/0.804）。同时，INQ 总分和 PB 得分的预测能力比较具有显著性差异（P＜0.05）。
INQ 具有良好的心理测量特性，可用于评估居住在深圳的移民工人对满足人际心理需求的感知，对自杀意念具有良好的预测能力。感知负担在自杀中起作用，可能是干预的重点，但与以往发现的显著偏差和其他两个因素的相对薄弱，值得进一步研究。
