TABLE 2.
2001, IRR (95% CI) | 2002, IRR (95% CI) | 2003, IRR (95% CI) | 2004, IRR (95% CI) | 2005, IRR (95% CI) | 2001–2005, IRR (95% CI) | |
Total | 2.7 (2.0, 3.6) | 2.3 (1.7, 3.2) | 3.3 (2.4, 4.4) | 3.3 (2.4, 4.4) | 3.3 (2.4, 4.6) | 2.9 (2.5, 3.3) |
Age, y | ||||||
20–29 | 3.1 (1.1, 8.5) | 3.0 (1.0, 8.9) | 9.1 (2.4, 34.2) | 6.7 (1.7, 27.0) | 2.2 (0.4, 13.2) | 4.1 (2.4, 7.1) |
30–39 | 3.0 (1.9, 4.8) | 4.2 (2.5, 7.0) | 3.2 (1.9, 5.5) | 3.4 (2.0, 5.9) | 5.1 (2.9, 8.8) | 3.7 (2.9, 4.6) |
40–49 | 3.1 (1.8, 5.2) | 1.2 (0.6, 2.2) | 3.3 (2.1, 5.2) | 3.6 (2.2, 5.9) | 3.8 (2.1, 6.8) | 2.8 (2.2, 3.5) |
50–59 | 0.9 (0.3, 2.9) | 1.4 (0.6, 3.0) | 1.6 (0.7, 3.7) | 2.6 (1.3, 5.4) | 0.9 (0.4, 2.4) | 1.5 (1.0, 2.1) |
≥ 60 | 1.3 (0.3, 4.7) | 3.3 (1.1, 9.8) | 7.7 (0.7, 85.2) | 0.9 (0.2, 4.0) | 3.8 (1.1, 13.3) | 2.2 (1.3, 4.0) |
Race/ethnicity | ||||||
Non-Hispanic Black | 2.1 (1.4, 3.2) | 2.0 (1.3, 3.0) | 3.1 (2.1, 4.5) | 3.3 (2.2, 4.8) | 3.5 (2.3, 5.3) | 2.7 (2.3, 3.2) |
Hispanic | 3.4 (2.0, 6.0) | 2.8 (1.6, 4.8) | 2.2 (1.2, 4.0) | 3.1 (1.7, 5.6) | 2.1 (1.1, 4.0) | 2.7 (2.1, 3.5) |
Non-Hispanic White | 0.8 (0.1, 6.4) | NA | 3.2 (0.3, 31.1) | 2.4 (0.5, 11.3) | 2.1 (0.5, 9.9) | 1.4 (0.6, 3.3) |
Asian | 1.6 (0.3, 7.7) | NA | NA | NA | NA | 6.7 (1.6, 28.0) |
Sex | ||||||
Male | 3.5 (2.4, 5.0) | 2.3 (1.6, 3.3) | 3.9 (2.8, 5.5) | 3.1 (2.1, 4.5) | 3.8 (2.6, 5.6) | 3.2 (2.8, 3.8) |
Female | 1.5 (0.8, 2.8) | 2.4 (1.4, 4.2) | 1.8 (0.9, 3.5) | 3.6 (2.1, 6.3) | 2.0 (1.0, 4.0) | 2.2 (1.7, 2.8) |
Note. CI = confidence interval; NA = not applicable (IRR could not be computed).