Table 2.
Exposures of Patients with Clostridium difficile-Associated Diarrhea and Control-Patients
| Characteristic | CDAD Patients | Control-Patients | P |
|---|---|---|---|
| No. of patients hospitalized during the risk period | 38 (79.2%) | 144 (100%) | * |
| Mean duration of last hospitalization, d (± SD) | |||
| All patients | 7.1 (8.0) | 6.7 (7.4) | NS |
| Hospitalized onlya | 10.0 (7.8) | 6.7 (7.4) | .02 |
| Total hospital days during risk period, d (± SD) | |||
| All patients | 14.9 (14.3) | 9.7 (9.7) | .02 |
| Hospitalized onlya | 19.3 (13.4) | 9.7 (9.7) | < .001 |
| Mean no. of antibiotics received (± SD) | |||
| All patients | 2.0 (1.5) | 1.9 (1.5) | NS |
| Patients with antibiotic exposureb | 2.4 (1.4) | 2.2 (1.4) | NS |
| Median no. of antibiotics received | |||
| All patients | 2.0 | 1.5 | NS |
| Patients with antibiotic exposureb | 2.0 | 2.0 | NS |
CDAD = C. difficile-associated diarrhea; SD = standard deviation; NS = not significant.
*
Hospitalization status was a selection criterion for control-patients.
a
Excludes patients who were not hospitalized during the risk period.
b
Excludes patients who received no antibiotics or an unknown quantity of antibiotics.