Long-term outcomes for those infants who developed HIE grade 2 or 3
| n | HIE grade 2 | HIE grade 3 | P value* | |
| 31 | 32 | |||
| Acid-base status | pH mean (95% CI) | 6.83 (6.64 to 7.13) | 6.72 (6.57 to 7.02) | 0.0004 |
| Base deficit mean (95% CI) | 16.6 (11.47 to 21.73) | 21.5 (16.65 to 26.35) | 0.0002 | |
| Follow-up | Died | 2 (6%) | 19 (59%) | – |
| Survivors with follow-up data | 27/29 (93%) | 12/13 (92%) | – | |
| Cerebral palsy | No cerebral palsy | 22 (81%) | 2 (17%) | – |
| Hemiplegic | 1 | 2 | – | |
| Diplegic | 2 | 1 | – | |
| Quadriplegic | 1 | 5 | – | |
| Dystonic | 1 | 2 | – | |
| Mild (GMFCS criteria) | 2 | 2 | – | |
| Moderate (GMFCS criteria) | 1 | 3 | – | |
| Severe (GMFCS criteria) | 2 | 5 | – | |
| Outcome | Combined death/cerebral palsy outcome | 7/29 (24%) | 29/31 (94%) | – |
Deaths do not include infants who died without a diagnosis of HIE.
*P value from Student’s t-test.
GMFCS, Gross Motor Function Classification System; HIE, hypoxic-ischaemic encephalopathy.