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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. SmithComments to Author 
Author affiliations: Kaiser Permanente Northwest, Portland, Oregon, USA (J.L. Kuntz, E.S. Johnson, A.F. Petrik, X. Yang, M.L. Thorp, S.J. Spindel, D.H. Smith); Kaiser Permanente Colorado Institute for Health Research, Denver, Colorado, USA (M.A. Raebel); University of Colorado School of Pharmacy, Denver (M.A. Raebel); Decision Research, Eugene, Oregon, USA (N. Neil)

Main Article

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.

Main Article

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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