Table 3. Age Groupings for Risk Adjustment National Healthcare Quality Report, 2008 Table 3. Age Groupings for Risk AdjustmentThis table shows the 18 categories of patient age, in five-year increments, that are used for risk adjustment. The 36 age-gender categories for risk adjustment are constructed from the 18 age categories split into male-female gender.Age Groups0-4 5-9 10-14 15-17 18-24 25-29 30-34 35-39 40-44 45-49 50-54 55-59 60-64 65-69 70-74 75-79 80-84 85 and overReturn to Document Current as of March 2009 Internet Citation: Table 3. Age Groupings for Risk Adjustment: National Healthcare Quality Report, 2008. March 2009. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/nhqrdr/nhqr08/methods/HCUPtabb3.html