Neonatal and maternal characteristics of extreme NH survivors present for neurodevelopmental assessment (n=37) and those unavailable or untraceable (n=78)
| Characteristics | Present (n=37) | Untraceable (n=78) | P value |
| Gender (male) | 20 (54.1) | 47 (60.3) | 0.529 |
| Year of birth (2012–2014) | 24 (64.9) | 41 (52.6) | 0.214 |
| Refugee status | 23 (62.1) | 54 (69.2) | 0.452 |
| First born | 20 (54.1) | 44 (56.4) | 0.812 |
| EGA (weeks+days), median (IQR) | 37+4 (34+5–38+3) | 37+4 (35+1–38+6) | 0.578 |
| EGA<35 weeks | 11 (29.7) | 18 (23.1) | 0.443 |
| Small for gestational age | 5/35 (14.3) | 14/75 (18.7) | 0.571 |
| Normal vaginal delivery | 31 (83.8) | 70 (89.7) | 0.361 |
| Days in SCBU, median (IQR) | 8 (5–16) | 7 (4–13) | 0.201 |
| Clinical diagnosis of sepsis prior to onset of NH | 8 (21.6) | 18 (23.1) | 0.862 |
| Maternal age, median (IQR) | 24 (20–30) | 22 (19–28) | 0.391 |
| Maternal illiteracy | 9/27 (33.3) | 23/57 (40.4) | 0.536 |
| Maternal smoking | 7 (18.9) | 11 (14.1) | 0.525 |
Data shown in number and percentage (%) unless stated otherwise.
EGA, estimated gestational age; NH, neonatal hyperbilirubinaemia; SCBU, special care baby unit.