Several studies demonstrated that intimate bidirectional violence (BV) is more common than unidirectional IPV. However, little is known about the phenomenon of BV during COVID-19 lockdowns. The present study focuses on BV during the second lockdown in Portugal to characterize the BV rates in an online sample from the community and identify the main psychosocial correlates associated with BV. Three hundred and thirty-six Portuguese adults, with a mean age of 35.02 years (SD = 11.67; 18–68 years), participated in this study. In addition to a sociodemographic questionnaire, IPV (victimization and perpetration), psychological distress, COVID-19-related anxiety, COVID-19 fear, and life satisfaction measures were used. BV (31.3%) emerged as the most reported pattern of violence. The BV group scored higher on psychological distress and depression than the nonviolence group. Being married/living in cohabitation, having a high level of education, working on the front line (during the COVID-19 pandemic), and having psychological distress emerged as important predictors of BV. Results emphasized the role of psychosocial dimensions, particularly marital status/cohabitation and educational levels, as relevant risk factors for BV during a worldwide crisis event. The assessment, prevention, and intervention of IPV should consider the possibility of BV, providing a response congruent with its specificities.

多项研究表明，亲密双向暴力 (BV) 比单向 IPV 更常见。然而，人们对 COVID-19 封锁期间 BV 现象知之甚少。本研究重点关注葡萄牙第二次封锁期间的 BV，以描述社区在线样本中的 BV 率，并确定与 BV 相关的主要社会心理相关因素。336 名葡萄牙成年人参与了这项研究，平均年龄为 35.02 岁（SD = 11.67；18-68 岁）。除了社会人口学调查问卷外，还使用了 IPV（受害和犯罪）、心理困扰、与 COVID-19 相关的焦虑、COVID-19 恐惧和生活满意度测量。BV（31.3%）成为报告最多的暴力形式。BV 组在心理困扰和抑郁方面的得分高于非暴力组。已婚/同居、受教育程度高、在前线工作（COVID-19 大流行期间）以及心理困扰成为 BV 的重要预测因素。结果强调了心理社会维度的作用，特别是婚姻状况/同居和教育水平，作为全球危机事件期间细菌性阴道炎的相关危险因素。IPV 的评估、预防和干预应考虑 BV 的可能性，并提供与其特异性相符的应对措施。