Table 1.
Clinical Characteristics of Study Subjects
| Off Oxygen at 28 days (n = 16) | Oxygen at 28 days (n = 28) | Died (n = 6) | P value1 | P value2 | |
| Birth Weight | 1112 ± 47 | 799 ± 35 | 751 ± 101 | <0.001 | 0.002 |
| Gestation | 27.9 ± 0.4 | 26.1 ± 0.3 | 24.5 ± 0.6 | 0.001 | <0.001 |
| Surfactant | 16 (100) | 27 (96) | 6 (100) | 1.00 | 1.00 |
| Prenatal Steroids | 14 (88) | 19 (68) | 3 (50) | 0.278 | 0.100 |
| Uu isolated | 4 (25) | 14 (50) | 2 (33) | 0.105 | 1.000 |
| PDA | 7 (44) | 14 (50) | 3 (50) | 0.835 | 1.000 |
| Indomethacin3 | 13 (81) | 28 (100) | 6 (100) | 0.042 | 0.532 |
| Duration IMV (days) | 8 ± 1 | 40 ± 6 | 15 ± 1 | <0.001 | 0.013 |
| Duration O2 (days) | 19 ± 3 | 79 ± 9 | 15 ± 1 | <0.001 | 0.479 |
| Postnatal Steroids | 5 (31) | 25 (89) | 6 (100) | <0.001 | 0.012 |
| Age Steroids Started | 11.6 ± 2.8 | 11.5 ± 1.5 | 6.8 ± 3.0 | 0.973 | 0.129 |
| PH | 0(0) | 7 (25) | 3 (50) | 0.037 | 0.013 |
| IVH | 2 (13) | 12 (43) | 3 (50) | 0.039 | 0.100 |
Data are presented as Mean ± SEM or number with percentage in parenthesis 1 O2 at 28 days vs not on O2 at 28 days 2deaths vs not on O2 at 28 days 3Indomethacin was used prophylactically in most cases Uu Ureaplasma urealyticum PDA Patent ductus arteriosus PH Pulmonary hemorrhage IVH Intraventricular hemorrhage