Algorithm used to convert the reviewers’ reports into Papile’s grading system
| Recorded on the data collection sheet | Normal | Grade 1 | Grade 2 | Grade 3 | Grade 4 |
|---|---|---|---|---|---|
| Normal scan | Yes | No | No | No | No |
| Subependymal haemorrhage | No | Yes | Yes | Yes | Yes |
| Blood in ventricle | No | No | Yes | Yes | |
| Ventricle distended with blood | No | No | No | Yes | |
| Parenchymal abnormality | No | No | No | No | Yes |