The "National Index of Violence and Harm" (NIVAH) tracks levels of violence and harm in the United States and identifies trends over the study period 1995-2003. NIVAH is comprised of nineteen variables in the areas of interpersonal, intrapersonal, institutional and structural violence and harm as experienced by people in the U.S. Two composite indexes are formed to describe overall trends in the realms of personal and societal violence. In addition to describing the Index's construction and most recent conclusions, various methodological issues and their impacts on index findings are investigated.