Despite the fact that intimate partner violence (IPV) occurs within intimate relationships, we know relatively little about the characteristics of those intimate relationships, and even less about how IPV changes across time within different relationships. We use the Relationship Dynamics and Social Life (RDSL) study, based on a random sample of 1003 18–19-year-old women residing in a Michigan county. Women were interviewed weekly for 2.5 years, resulting in an age range of 18 through 22. We estimate hybrid “within-between” regression models, which allows us to directly compare the same woman’s risk of experiencing IPV across her different relationships, varied in terms of resources, balance of power, conflict, childbearing, relationship type, and duration. Our analyses demonstrate that power imbalance in intimate relationships, non-monogamous and unstable relationships, relationships with men who are not the father of a woman’s existing children, and serious relationships (especially stayover and cohabiting) place young women in their late teens and early twenties at particularly high risk of multiple dimensions of IPV. Our fixed-effects modeling strategy isolated the increase in IPV risk that is due to these characteristics and experiences within intimate relationships from the risk due to young women being at high risk of IPV for other reasons who might tend to choose these types of relationships. The elevated risk of IPV in relationships with these characteristics and experiences supports a causal link between them. Our research supports the potential efficacy of interventions that reduce conflict, equalize power within relationships, and encourage women—especially young mothers—to delay serious relationships.

尽管亲密伴侣暴力 (IPV) 发生在亲密关系中，但我们对这些亲密关系的特征知之甚少，更不了解 IPV 在不同关系中随时间变化的情况。我们使用关系动态和社会生活 (RDSL) 研究，该研究基于居住在密歇根县的 1003 名 18-19 岁女性的随机样本。为期 2.5 年，每周对女性进行访谈，年龄范围为 18 至 22 岁。我们估计了混合“组内”回归模型，这使我们能够直接比较同一名女性在不同关系中经历 IPV 的风险，这些关系的术语各不相同资源、权力平衡、冲突、生育、关系类型和持续时间。我们的分析表明，亲密关系中的权力不平衡、非一夫一妻制和不稳定的关系、与非妇女现有孩子父亲的男性的关系以及严肃的关系（尤其是留宿和同居）使年轻女性在十几岁和二十岁出头IPV 多个维度的风险特别高。我们的固定效应建模策略将由于亲密关系中的这些特征和经历而导致的 IPV 风险增加与年轻女性因其他原因可能倾向于选择这些类型的关系而处于 IPV 高风险的风险分开。 IPV 风险升高与这些特征和经历的关系支持了它们之间的因果关系。我们的研究支持干预措施的潜在功效，这些干预措施可以减少冲突、平衡关系中的权力，并鼓励女性（尤其是年轻母亲）推迟认真的关系。