Table 3.
Multivariable logistic regression to predict severe-complicated C. difficile infection in hospitalized patients (n=1446).
| Variable | Odds Ratio | 95% Confidence Interval | p-value |
|---|---|---|---|
| Peripheral WBC count1 | 2.2 | 1.7–2.9 | <0.0001 |
| Serum creatinine rise2 | 1.6 | 1.3–2.1 | <0.0001 |
| Age, per 10 years3 | 1.1 | 1.0–1.1 | 0.0029 |
| Narcotic use4 | 2.1 | 1.5–3.0 | <0.0001 |
| H2Blocker/PPI4 | 1.8 | 1.3–2.6 | 0.0002 |
Peripheral white blood cell (WBC) count was dichotomized in ≥15 × 109/L and <15 × 109/L
Increase in serum creatinine 1.5 fold or more from baseline was compared to an increase <1.5-fold from baseline
Age was treated as a continuous variable and studied in 10 year intervals
Medication use was examined 7 days prior to and 30 days after C. difficile infection diagnosis