Volume 18, Number 6—June 2012
Dispatch
Clostridium difficile Infection, Colorado and the Northwestern United States, 20071
Jennifer L. Kuntz, Eric S. Johnson, Marsha A. Raebel, Amanda F. Petrik, Xiuhai Yang, Micah L. Thorp, Steven J. Spindel, Nancy Neil, and David H. Smith
Table
Incidence of Clostridium difficile infection among members >20 years of age of Kaiser Permanente Colorado and Northwest, USA, with projections to US white and US total populations, 2007*
| Sex/age, y | Kaiser Permanente populations |
Projected no. US infections |
|||
|---|---|---|---|---|---|
| Incident infections, no. | Incidence rate* (SE) | Whites | Total | ||
| Female | |||||
| 20–29 | 12 | 3.1 (0.91) | 4,920 | 6,383 | |
| 30–39 | 31 | 6.1 (1.09) | 9,399 | 12,186 | |
| 40–49 | 45 | 7.2 (1.1) | 13,079 | 16,386 | |
| 50–59 | 80 | 11.5 (1.3) | 18,892 | 23,046 | |
| 60–69 | 96 | 21.3 (2.2) | 23,340 | 27,681 | |
| 70–79 | 119 | 42.0 (3.8) | 32,141 | 37,503 | |
| >80 | 140 | 79.5 (6.7) | 42,559 | 48,015 | |
| Male | |||||
| 20–29 | 8 | 2.4 (0.85) | 3,969 | 5,009 | |
| 30–39 | 18 | 3.9 (0.93) | 6,318 | 7,871 | |
| 40–49 | 29 | 5.2 (0.96) | 9,274 | 11,321 | |
| 50–59 | 62 | 10.1 (1.3) | 16,242 | 19,359 | |
| 60–69 | 67 | 16.7 (2.0) | 16,747 | 19,355 | |
| 70–79 | 73 | 31.1 (3.6) | 18,994 | 21,780 | |
| >80 | 90 | 87.1 (9.2) | 25,941 | 28,980 | |
| All | 870 | 14.9 (0.5) | 241,815 | 284,875 | |
*Per 10,000 patient-years.
1This research was presented as a poster at the 2011 HMO Research Network Conference, Boston, Massachusetts, USA, on March 23, 2011, and at the 2011 International Conference on Pharmacoepidemiology and Therapeutic Risk Management Annual Meeting, Chicago, Illinois, USA, on August 16, 2011.
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