Table 1.
Patient Demographic Data by Clostridioides difficile Colonization and Clostridioides difficile Infection Status
| ICU Patients | Non-ICU Patients | ||||
|---|---|---|---|---|---|
| Parameter | Noncolonized | Asympto-matically Colonized | CDI | CDI | P |
| Number of patients | 1734 | 135 | 28 | 150 | |
| Mean (SD) age, years | 62.5 (16.0) | 62.0 (15.7) | 57.9 (15.9) | 60.7 (15.3) | .317a |
| Sex, % female | 42.3 | 43.2 | 37.0 | 51.9 | .179b |
| Mean (SD) inpatient days across admissions | 13.8 (13.9) | 26.2 (12.1) | 38.8 (27.7) | 14.1 (16.3) | <.001a |
| Mean (SD) no. of inpatient admissions | 1.33 (0.8) | 1.61 (1.05) | 2.04 (1.12) | 1.38 (1.48) | <.001a |
| Mean (SD) inpatient admission length of stay, days | 11.9 (16.4) | 18.9 (15.9) | 26.3 (22.8) | 13.8 (11.8) | <.001a |
| Mean (SD) outpatient hospital visits | 5.03 (7.39) | 4.79 (7.34) | 5.36 (9.14) | 5.33 (7.45) | .013a |
| % Mortality within 30 days of last swab or stool culture | 17.3 | 28.9 | 17.9 | 16.7 | .009b |
Abbreviations: CDI, Clostridioides difficile infection; ICU, intensive care unit; ICU Patients, patients who spent time in an ICU over the study period; Non-ICU Patients, patients not in an ICU over the study period but who had a stool C. difficile isolate.
aHypothesis testing by Kruskall-Wallis test.
bHypothesis testing by chi-square analysis.