Clinical features and laboratory tests included in risk prediction scores in young infants
| Prediction rule | Age group/months | Criteria |
|---|---|---|
| Rochester23 | 0–3 | Normal clinical exam 5<WCC <15×109/L Urine microscopy <10 WCCs per high power field |
| Philadelphia24 | 1–2 | YOS ≤10 WCC <15×109/L Urine microscopy <10 WCCs per high power field CSF <8 WCCs per high power field CXR no infiltrate |
CSF, cerebrospinal fluid; CXR, chest X-ray; WCC, white cell count; YOS, Yale Observation Scale.