Estimated Number, Percentage, and Rate per 100,000 of New Infections with Associated 95% Confidence Intervals among Blacks/African Americans - United States, 2006–2009.

aCI, Confidence Interval. Confidence intervals reflect random variability affecting model uncertainty but may not reflect model-assumption uncertainty; thus, they should be interpreted with caution. bHeterosexual contact with a person known to have, or to be at high risk for, HIV infection. cBecause column subtotals and totals for estimated numbers were calculated independently of the values for the subpopulations, the values in each column may not sum to the column subtotal or total. *Indicates significantly different (p<0.05) from the 2006 estimate for the same group. **Indicates significantly different (p<0.05) from the 2007 estimate for the same group.