Intolerance of uncertainty, a transdiagnostic factor manifested across emotional disorders, has been associated with difficulties in regulating emotions. This meta-analysis addresses the lack of synthesis of this relationship. PsycInfo, PubMed, Scopus, and ProQuest were systematically searched for relevant articles published up to and during November 2022. We combined 161 effect sizes from 91 studies (N = 30,239), separating the analysis into maladaptive and adaptive emotion regulation strategies and their association with intolerance of uncertainty. We found a moderate positive relationship between maladaptive, and a moderate inverse relationship between adaptive emotion regulation and intolerance of uncertainty. Analysing the magnitude of relationships revealed that cognitive avoidance and mindfulness were the maladaptive and adaptive strategies respectively which had the largest effect sizes and thus strongest relationships with intolerance of uncertainty. Combining all strategies, cognitive avoidance remained the largest effect size, while expressive suppression had the smallest effect size and was non-significant in its relationship. Further analyses testing study sample, design, and age as moderators found no significant moderator for the relationships between intolerance of uncertainty and emotion regulation strategies. These findings have implications for future intolerance of uncertainty interventions, with emotion regulation as a potential target of change.

对不确定性的不容忍是情绪障碍中表现出来的跨诊断因素，与调节情绪的困难有关。该荟萃分析解决了这种关系缺乏综合性的问题。系统地搜索了 PsycInfo、PubMed、Scopus 和 ProQuest，以查找截至 2022 年 11 月及期间发表的相关文章。我们结合了来自 91 项研究的 161 种效应大小 ( N = 30,239），将分析分为适应不良和适应性情绪调节策略及其与不确定性不容忍的关联。我们发现适应不良之间存在适度的正相关关系，而适应性情绪调节与对不确定性的不容忍之间存在适度的负相关关系。分析关系的大小表明，认知回避和正念分别是适应不良和适应性策略，它们具有最大的影响大小，因此与不容忍不确定性的关系最强。结合所有策略，认知回避仍然是最大的效应量，而表达抑制的效应量最小并且在其关系中不显着。进一步分析测试研究样本，设计，和年龄作为调节者发现对不确定性的不容忍和情绪调节策略之间的关系没有显着调节作用。这些发现对未来对不确定性干预的不容忍有影响，情绪调节是一个潜在的改变目标。