Table 2 Incidence of HA and CA- Clostridium difficile infection over the study period among U.S. military personnel (1998-2010)
CA-CDAD | HA-CDAD | |||
|---|---|---|---|---|
Category | Rate (Cases per 100 K p-yr) | 95% CI | Rate (Cases per 1 K hospitalizations) | 95% CI |
Overall incidence | 5.5 | 5.2-5.9 | 1.3 | 1.2-1.4 |
Branch of service | ||||
Army | 6.3 | 5.7-6.9 | 1.2 | 1.1-1.3 |
Navy | 4.0 | 3.5-4.7 | 1.2 | 1.1-1.4 |
Air Force | 7.2 | 6.4-8.0 | 2.7 | 2.5-2.9 |
Marines | 2.7 | 2.1-3.5 | 2.2 | 1.9-2.5 |
Coast Guard | 8.7 | 6.4-11.7 | Not available | |
Age | ||||
<20 | 1.8 | 1.3-2.7 | 0.5 | 0.4-0.7 |
20-24 | 3.8 | 3.3-4.3 | 1.1 | 1.0-1.3 |
25-29 | 5.6 | 4.9-6.4 | 1.4 | 1.2-1.6 |
30-34 | 6.1 | 5.3-7.1 | 1.7 | 1.5-2.0 |
35-39 | 6.4 | 5.5-7.5 | 1.7 | 1.5-1.9 |
> = 40 | 12.0 | 10.6-13.7 | 1.4 | 1.3-1.6 |
Race | ||||
Black | 4.6 | 3.9-5.3 | 0.9 | 0.7-1.0 |
White | 6.0 | 5.5-6.4 | 1.3 | 1.2-1.4 |
Native American | 6.0 | 3.5-10.2 | Not available | - |
Hispanic | 2.3 | 1.7-3.2 | Not available | - |
Asian | 2.1 | 1.3-3.5 | Not available | - |
Other/unk | 8.0 | 6.2-10 | 0.8 | 0.7-1.0 |
Gender | ||||
Male | 4.6 | 4.3-5.0 | 1.7 | 1.6-1.8 |
Female | 10.4 | 9.2-11.7 | 0.6 | 0.5-0.7 |