Table 1.
The general characteristics of the subjects.
| HFI Group | HPI Group | PIBI Group | |
|---|---|---|---|
| CoA or CA (days) | 201.9 ± 98.9 | 169.5 ± 100.1 | 179.6 ± 120.1 |
| Gestational age (days) | 278.0 ± 6.0 | 223.6 ± 20.6 | 203.3 ± 26.3 |
| Gestational weeks | |||
| Less than 32 weeks More than 32weeks |
- - |
48 (45.7) 57 (54.3) |
37 (74.0) 13 (26.0) |
| Birth weight (grams) | 3321.2 ± 145.3 | 1617.8 ± 704.9 | 1295.0 ± 638.5 |
| Birth weight (grams) | |||
| Less than 1500 g More than 1500 g |
47 (44.8) 58 (55.2) |
31 (62.0%) 19 (38.0%) |
|
| Gender | |||
| Girls Boys |
35 (36.1) 62 (63.9) |
51 (48.6) 54 (51.4) |
21 (42.0) 29 (58.0) |
| Brain injury | |||
| PVL | |||
| Yes No |
0 (0.0) 97 (100.0) |
0 (0.0) 105 (100.0) |
24 (48.0) 26 (52.0) |
| IVH (grade I or IIa) | |||
| Yes No |
0 (0.0) 97 (100.0) |
0 (0.0) 105 (100.0) |
35 (70.0) 15 (30.0) |
| Age bands (months) | |||
| 0–3 4–6 7–9 10≤ Total |
14 (14.4) 29 (29.9) 32 (33.0) 22 (22.7) 97 (100.0) |
24 (22.9) 36 (34.3) 33 (31.4) 12 (11.4) 105 (100.0) |
9 (18.0) 22 (44.0) 13 (26.0) 6 (12.0) 50 (100.0) |
HPI: healthy preterm infants, PIBI: preterm infants with brain injury, HFI: healthy full-term infant, Unit: mean ± standard deviation or n (%), CoA: corrected age, CA: chronological age, PVL: periventricular leukomalacia, IVH: intraventricular hemorrhage.