Stability and Change in Types of Intimate Partner Violence Across Pre-pregnancy, Pregnancy, and the Postpartum Period.

Computer-assisted telephone interviews were conducted after childbirth with 2,709 female residents of Iowa to examine experience of intimate partner violence (IPV) across pre-pregnancy, pregnancy, and postpartum. IPV was most prevalent during the postpartum period, followed by pre-pregnancy, and pregnancy. Violence in one period increased the likelihood of violence in subsequent periods. Latent Transition Analysis revealed three classes of women: those who experienced or . Change in IPV type across time was associated with whether women had intended, and whether their partners wanted, the pregnancy and with marital status. Findings suggest a continuity of violence for childbearing women who experience IPV prior to conception and have numerous implications for clinicians, researchers, and policymakers.