PICP concentration in the CSF in 20 neonates with PHHC and four control subjects
| Study group PICP (μg/l)* | No. of analyses | Controls PICP (μg/l)* | p value** | |
|---|---|---|---|---|
| *Median (range). | ||||
| **Significantly higher in patients than control subjects. | ||||
| Week 3 | 851 (153–1944) | 14 | 0.001 | |
| Week 4 | 552 (83–1588) | 13 | 0.023 | |
| Week 5 | 255 (67–628) | 8 | 0.2 | |
| Shunt | 300 (52–946) | 17 | 118 (33–169) | 0.14 |