Globally, one out of three people suffer from a mental health issue during their lifetime. In romantic relationships, impaired mental health does not only affect the individual but also their partner and therefore needs to be coped with dyadically. In this systematic review, we summarize research examining dyadic coping (DC) in the context of mental health and individual and relational outcomes. We searched for peer-reviewed articles published between January 1990 and April 2023 on PsycInfo, Medline, and PSYNDEX on DC and mental health within romantic relationships. A total of 60 qualitative, quantitative, and intervention studies met the inclusion criteria, reporting on 16,394 individuals and 4,945 dyads. To synthesize the studies, we used a narrative synthesis approach. Overall, stress expression and positive DC yielded beneficial individual and relational outcomes, whereas, for negative DC, the opposite was true. Results differed between mental health clusters and context played an important role (e.g., symptom severity, life phase). Due to the great diversity of studies and variables, further research should focus on understudied mental health clusters (e.g., anxiety disorders). Clinicians are advised to view mental health issues as a dyadic rather than an individual phenomenon (“we-disease”) and develop tailored couple-centered interventions.

在全球范围内，三分之一的人在一生中患有心理健康问题。在恋爱关系中，心理健康受损不仅会影响个人，还会影响伴侣，因此需要双向应对。在这篇系统综述中，我们总结了在心理健康以及个人和关系结果的背景下检验二元应对（DC）的研究。我们检索了 1990 年 1 月至 2023 年 4 月期间在 PsycInfo、Medline 和 PSYNDEX 上发表的有关 DC 和恋爱关系中心理健康的同行评审文章。共有 60 项定性、定量和干预研究符合纳入标准，报告了 16,394 名个人和 4,945 名双人组。为了综合这些研究，我们使用了叙事综合方法。总体而言，压力表达和积极的 DC 会产生有益的个人和关系结果，而对于消极的 DC，情况恰恰相反。心理健康集群之间的结果有所不同，背景发挥了重要作用（例如，症状严重程度、生命阶段）。由于研究和变量存在很大差异，进一步的研究应集中于未充分研究的心理健康群体（例如焦虑症）。建议临床医生将心理健康问题视为一种二元现象，而不是一种个体现象（“我们疾病”），并制定以夫妇为中心的量身定制的干预措施。