| Parameter | 0 | 1 | 2 |
|---|---|---|---|
| Age, years | < 60 | 60-79 | ≥ 80 |
| Treatment with systemic antibiotics during C. diff infection therapy ≥ 1 day duration | No | Yes | |
| Temperature (℃) | ≤ 37.5 | 37.6-38.5 | ≥ 38.6 |
| Leukocyte count, cells/µL | < 16,000 | 16,000-25,000 | > 25,000 |
| Serum albumin (g/dL) | > 3.5 | 2.6-3.5 | < 2.6 |
| Serum creatinine (As a measure of renal function)(mg/dL) | ≤ 1.3 | 1.4-2.0 | ≥ 2.1 |