Reports on trends in intimate partner violence of persons age 12 or older in the United States using data from the National Crime Victimization Survey (NCVS) and the FBI's Supplementary Homicide Reports. Murder and nonfatal violent crimes -- such as aggravated assault, simple assault, robbery, and rape/sexual assault -- are examined for male and female victims. This Crime Data Brief updates some of the data in Intimate Partner Violence, a more detailed report on this subject published in 2000.