Kertz Sarah J, Stevens Kimberly T, McHugh R Kathryn, Björgvinsson Thröstur
a Psychology Department , Southern Illinois University , Carbondale , IL , USA.
Anxiety Stress Coping. 2015;28(4):408-24. doi: 10.1080/10615806.2014.974571. Epub 2014 Nov 5.
Distress intolerance (DI) has been identified as a potential risk factor for a variety of maladaptive avoidance behaviors, including worry. However, mechanisms linking DI to specific behaviors remain poorly understood. One hypothesis is that DI is a general vulnerability that confers risk of particular avoidance behaviors via more specific, lower-order vulnerabilities. The current study examined associations between DI and worry-related cognitions.
A multiple mediator model tested the hypothesis that worry-related variables (intolerance of uncertainty [IU], cognitive avoidance, beliefs about worry, and negative problem orientation) mediated the association between DI and worry.
An undergraduate student (n = 281) and a clinical (n = 123) sample completed self-report measures.
Across samples, worry was associated with higher levels of DI, IU, cognitive avoidance, beliefs about worry, and negative problem orientation. Mediation results differed somewhat between the two samples. In the undergraduate sample, IU, negative beliefs about worry, and positive beliefs about worry mediated the association between DI and worry. In the clinical sample, negative problem orientation and negative beliefs about worry mediated the association between DI and worry.
Results provide initial evidence that DI may be associated with worry via unique risk factors.
痛苦不耐受（DI）已被确定为包括担忧在内的多种适应不良回避行为的潜在风险因素。然而，将DI与特定行为联系起来的机制仍知之甚少。一种假设是，DI是一种普遍的易感性，通过更具体的低阶易感性导致特定回避行为的风险。本研究考察了DI与担忧相关认知之间的关联。
一个多重中介模型检验了以下假设，即与担忧相关的变量（对不确定性的不耐受[IU]、认知回避、对担忧的信念以及消极问题取向）中介了DI与担忧之间的关联。
一个本科生样本（n = 281）和一个临床样本（n = 123）完成了自我报告测量。
在两个样本中，担忧都与更高水平的DI、IU、认知回避、对担忧的信念以及消极问题取向相关。两个样本的中介结果略有不同。在本科生样本中，IU、对担忧的消极信念和对担忧的积极信念中介了DI与担忧之间的关联。在临床样本中，消极问题取向和对担忧的消极信念中介了DI与担忧之间的关联。
结果提供了初步证据，表明DI可能通过独特的风险因素与担忧相关。
