|
Age (per year)
|
0.98
|
0.96, 1.01
|
0.18
|
|
Days from admission to culture (per day)
|
|
0–7
|
1.00
|
Reference
| |
|
8–14
|
0.79
|
0.33, 1.89
|
0.6
|
|
15–21
|
1.25
|
0.44, 3.55
|
0.67
|
|
≥22
|
1.78
|
0.80, 3.97
|
0.16
|
|
CDI in the previous 90 days
|
4.21
|
2.11, 8.40
|
<0.001
|
|
Any antibiotics
|
0.93
|
0.48, 1.82
|
0.83
|
|
Antibiotics in the past 90 days
|
2.70
|
1.15, 6.33
|
0.02
|
|
Antibiotics in the past 30 days
|
2.20
|
1.03, 4.73
|
0.04
|
|
Inhibitory antibiotic activity (vs. non-inhibitory activity) against C. difficile (among antibiotic users)
|
0.41
|
0.14, 1.22
|
0.11
|
|
Piperacillin/tazobactam (vs. non-inhibitory antibiotics only)
|
0.14
|
0.02, 1.14
|
0.06
|
|
Piperacillin/tazobactam (vs. non-inhibitory and or antibiotics in past 90 days)
|
0.14
|
0.02, 0.99
|
0.05
|
|
Comorbidities
|
|
Heart disease
|
0.64
|
0.31, 1.32
|
0.23
|
|
Cancer
|
1.16
|
0.60, 2.27
|
0.65
|
|
Diabetes
|
0.75
|
0.38, 1.48
|
0.41
|
|
End stage renal disease
|
1.02
|
0.34, 3.10
|
0.97
|
|
Major surgery
|
0.86
|
0.40, 1.82
|
0.69
|
|
Spinal cord injury
|
1.56
|
0.60, 4.03
|
0.36
|
