It is suggested that the different psychological vulnerability factors of intolerance of uncertainty (IU), anxiety sensitivity (AS) and distress tolerance (DT) may be in important in hoarding disorder (HD). However, the extent to which these factors are specific to HD compared with other disorders remains unclear.

The current study aimed to investigate differences in IU, AS and DT in three groups: HD (n=66), obsessive compulsive disorder (OCD; n=59) and healthy controls (HCs; n=63).

Participants completed an online battery of standardised self-report measures to establish the independent variable of group membership (HD, OCD and HC) and the dependent variables (IU, AS and DT).

A MANOVA analysis indicated statistically significant differences in IU, AS and DT between the clinical groups and HCs. Follow-up analyses showed no statistically significant differences between the HD and OCD group for any of the three constructs. The results remained the same when examining the effects of co-morbid HD and OCD. An unexpected finding was the trend for IU, AS and DT to be more severe when HD and OCD were co-morbid.

The evidence suggests the absence of a specific relationship between IU, AS or DT in HD and instead is consistent with existing research which suggests that these psychological vulnerability factors are transdiagnostic constructs across anxiety disorders. The implications of the findings are discussed.

提示不确定性不耐受（IU）、焦虑敏感（AS）和痛苦耐受（DT）的不同心理脆弱性因素可能在囤积障碍（HD）中起重要作用。然而，与其他疾病相比，这些因素对 HD 的特异性程度仍不清楚。

目前的研究旨在调查三组中 IU、AS 和 DT 的差异：HD（n = 66）、强迫症（OCD；n = 59）和健康对照组（HCs；n = 63）。

参与者完成了一系列标准化的自我报告测量，以确定组成员身份的自变量（HD、OCD 和 HC）和因变量（IU、AS 和 DT）。

MANOVA 分析表明临床组和 HC 之间的 IU、AS 和 DT 存在统计学显着差异。后续分析显示，对于三种结构中的任何一种，HD 组和 OCD 组之间没有统计学上的显着差异。在检查合并症 HD 和 OCD 的影响时，结果保持不变。一个出乎意料的发现是当 HD 和 OCD 并存时，IU、AS 和 DT 的趋势更加严重。

证据表明，在 HD 中 IU、AS 或 DT 之间不存在特定关系，而是与现有研究一致，这些研究表明这些心理脆弱性因素是跨焦虑症的跨诊断结构。讨论了调查结果的含义。