Table 2.
Demographic data
| Infants, n | 18 |
| Female, n (%) | 10 (55.6) |
| GA at birth, weeks | 31.4 (28.3–33.7) |
| Weight at birth, g | 1,695 (1,133–2,139) |
| BPD, n (%) | 5 (27.8) |
| GMV-IVH, n (%) | 3 (16.7) |
| Grade 1 to 2 | 2 (11.1) |
| Grade 4 | 1 (5.6) |
| Apgar | |
| 1 min | 6.5 (5.0–7.0) |
| 5 min | 7.0 (6.0–8.0) |
| Age at study, weeks | 4.7 (2.0–6.8) |
| GA at study, weeks | 35.6 (35.0–36.2) |
| Weight at study, kg | 2,203 (1,919–2,533) |
| Infants with caffeine previously, n (%) | 12 (66.7) |
| Caffeine-free period before study, days | 8.5 (7.0–11.0) |
Results presented as median (IQR) or n (%). BPD, bronchopulmonary dysplasia; GMH-IVH, germinal matrix or intraventricular hemorrhage.