Volume 12, Number 3—March 2006
Research
Clostridium difficile Infection in Patients Discharged from US Short-stay Hospitals, 1996–20031
L. Clifford McDonald*
, Maria Owings*, and Daniel B. Jernigan*
, Maria Owings*, and Daniel B. Jernigan*
Table
Overall rates of any listed CDAD discharge diagnosis by various demographic factors, 1996–2003*
| Demographic factor | Point estimate of rate† | 95% confidence interval† | p value |
|---|---|---|---|
| Sex | |||
| Male | 0.38% | 0.34%–0.42% | |
| Female | 0.38% | 0.34%–0.42% | NS |
| Age group (y) | |||
| >65 | 228 | 200–256 | |
| 45–64 | 40 | 34–45 | <0.001 |
| 15–45 | 11 | 10–13 | <0.001 |
| <15 | 9 | 5–9 | <0.001 |
| Geographic region | |||
| Northeast | 68 | 56–79 | |
| Midwest | 49 | 36–61 | 0.03 |
| South | 36 | 27–45 | <0.001 |
| West | 31 | 26–37 | <0.001 |
| Hospital size by number of beds | |||
| <100 | 0.30% | 0.23%–0.36% | |
| 100–200 | 0.42% | 0.37%–0.47% | 0.004 |
| >300 | 0.38% | 0.35%–0.40% | 0.03 |
*CDAD, Clostridium difficile–associated disease; NS, not significant.
†Per 100,000 population unless otherwise indicated as the proportion (%) of hospital discharges.
1Presented in part at the 14th Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, Philadelphia, Pennsylvania, April 18, 2004.
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