It is not clear if treatments for anxiety specifically targeting repetitive negative thinking (RNT: rumination, worry, and content‐independent perseverative thinking) have a specific effect on RNT resulting in better outcomes than other psychological and nonpsychological treatments. We conducted a systematic search of randomized controlled trials comparing RNT‐focused and non‐RNT‐focused psychological treatments, as well as nonpsychological treatments for anxiety with control groups and reporting outcomes on RNT. Inclusion criteria were met by 46 studies with a total of 3,194 participants. RNT‐focused and non‐RNT‐focused psychological treatments had comparable effects on RNT, and level of anxiety and changes in RNT and anxiety were highly associated across treatments. Further mediation and mechanistic studies to test whether reductions in RNT during RNT‐focused cognitive behavioral therapy predict subsequent reductions in anxiety are called for.

中文翻译：

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不同类型的焦虑症治疗对重复性否定性思维的影响：荟萃分析

目前尚不清楚专门针对重复否定性思维（RNT：沉思，忧虑和与内容无关的持久性思维）的焦虑疗法是否对RNT产生特定效果，其结果优于其他心理和非心理疗法。我们对随机对照试验进行了系统搜索，比较了以RNT为重点和非以RNT为重点的心理治疗以及非心理治疗对对照组的焦虑程度，并报告了RNT的结果。46项研究符合纳入标准，共有3,194名参与者。以RNT为重点和非以RNT为重点的心理治疗对RNT具有可比的效果，并且焦虑程度以及RNT和焦虑的变化在各种治疗之间高度相关。