Infant characteristics in each grade of DEHSI
| Total (N = 160) | Grade 0 (n = 13) | Grade 1 (n = 40) | Grade 2 (n = 32) | Grade 3 (n = 53) | Grade 4 (n = 22) | P Value | |
|---|---|---|---|---|---|---|---|
| Gestational age at birth (week) (SD) | 27.4 (1.9) | 26.7 (2.0) | 26.9 (1.5) | 27.7 (2.2) | 27.7 (2.0) | 27.7 (1.7) | .14 |
| Gestational age at MRI (week) (SD) | 40.2 (1.5) | 40.3 (1.3) | 40.1 (1.7) | 39.9 (1.0) | 40.4 (1.6) | 40.5 (1.2) | .55 |
| Birthweight (gram) (SD) | 955 (227) | 868 (222) | 928 (248) | 953 (243) | 983 (206) | 985 (214) | .46 |
| Male (No.) (%) | 81 (50.6) | 4 (30.8) | 18 (45.0) | 21 (65.6) | 26 (49.1) | 12 (54.5) | .23 |
| Small for gestational age (No.) (%) | 16 (10.0) | 2 (15.4) | 2 (5.0) | 5 (15.6) | 6 (11.3) | 1 (4.5) | .48 |
| Singleton (No.) (%) | 93 (58.1) | 4 (30.8) | 23 (57.5) | 12 (37.5) | 22 (41.5) | 6 (27.3) | .14 |
| Antenatal corticosteroids (No.) (%) | 142 (88.8) | 11 (84.6) | 36 (90.0) | 29 (90.6) | 47 (88.7) | 19 (86.4) | .97 |
| Postnatal corticosteroids (No.) (%) | 15 (9.4) | 2 (15.4) | 5 (12.5) | 3 (9.4) | 3 (5.7) | 2 (9.1) | .76 |
| Postnatal sepsis (No.) (%) | 67 (41.9) | 5 (38.5) | 15 (37.5) | 17 (53.1) | 19 (35.8) | 11 (50.0) | .49 |
| Necrotizing enterocolitis (No.) (%) | 8 (5.0) | 1 (7.7) | 2 (5.0) | 0 | 3 (5.7) | 2 (9.1) | .61 |
| Bronchopulmonary dysplasia at 36 weeks (No.) (%) | 52 (32.5) | 6 (46.2) | 12 (30.0) | 12 (37.5) | 16 (30.2) | 6 (27.3) | .74 |
| Inotropic support (No.) (%) | 60 (37.5) | 5 (38.5) | 19 (47.5) | 10 (31.3) | 20 (37.7) | 6 (27.3) | .52 |
| Operated patent ductus arteriosus (No.) (%) | 8 (5.0) | 0 | 1 (2.5) | 3 (9.4) | 3 (5.7) | 1 (4.5) | .63 |
Note:—MRI = MR imaging.