The Outcome of Outcomes Research at AHCPR: Final Report, Figure 1. Levels of Impact Resulting from Outcomes Studies Return to Document Current as of October 1999 Internet Citation: The Outcome of Outcomes Research at AHCPR: Final Report, Figure 1. Levels of Impact Resulting from Outcomes Studies. October 1999. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/outcomes-research/fig1.html