Table 2.
Demographics.
| Term | Preterm |
|||
|---|---|---|---|---|
| All | No abnormality | Minimal abnormality | ||
| n (male/female) | 20 (9/11) | 55 (19/36) | 29 (9/20) | 26 (10/16) |
| GA at birth [weeks+days]a | 39+3 (38+2–41+3) | 28+5 (23+6–30+6) | 28+0 (24+3–30+6) | 29+0 (23+6–30+6) |
| Birth weight [grams]a | 3500 (2932–3940) | 1188 (584–1886) | 1243 (584–1886) | 1035 (598–1649) |
| PMA at MRI [weeks+days]a | 40+6 (39+2–42+4) | 40+5 (38+3–44+6) | 40+5 (38+3–42+1) | 40+4 (38+6–44+6) |
| ICV at MRIa | 511.0 (455.6–540.6) | 508.6 (382.6–651.1) | 511.2 (446.7–651.0) | 490.8 (382.6–651.1) |
| MRI classification (normal/mild/moderate/severe) | ||||
| WM | 20/0/0/0 | 52/3/0/0 | 29/0/0/0 | 23/3/0/0 |
| dGM | 20/0/0/0 | 44/8/3/0 | 29/0/0/0 | 15/8/3/0 |
| cGM | 19/1/0/0 | 48/2/5/0 | 29/0/0/0 | 19/2/5/0 |
| cerebellum | 19/1/0/0 | 45/9/1/0 | 29/0/0/0 | 16/9/1/0 |
| global | 20/0/0/0 | 55/0/0/0 | 29/0/0/0 | 26/0/0/0 |
GA: gestational age; PMA: postmenstrual age; MRI: magnetic resonance imaging; ICV: intracranial volume; WM: white matter; dGM: deep grey matter; cGM: cortical grey matter.
a
Reported are median and range.