Table 3.
Comparison of surfactant administration between two groups.
| MISA (n = 151) | EISA (n = 147) | t | p | |
|---|---|---|---|---|
| Surfactant administration time after birth, h | 2.5 ± 1.7 | 2.47 ± 1.7 | 0.716 | 0.475 |
| Dose of surfactant, mg/kg | 100.0 ± 14.3 | 101.5 ± 24.9 | 0.645 | 0.519 |
| Duration 1, s | 20.5 ± 45.4 | 15.4 ± 15.5 | 1.289 | 0.198 |
| Duration 2, s | 102.2 ± 158.2 | 43.9 ± 43.3 | 4.358 | 0.000 |
| Duration 3, s | 122.2 ± 163.7 | 65.2 ± 73.8 | 3.896 | 0.000 |
| Working experiences in pediatrics, years | 8.5 ± 5.4 | 7.7 ± 5.2 | 1.377 | 0.169 |
| Working experiences in neonatology, years | 7.3 ± 4.5 | 6.5 ± 4.6 | 1.553 | 0.122 |
| Working experiences in NICU, years | 6.5 ± 4.4 | 5.8 ± 4.5 | 1.267 | 0.206 |
Data are expressed as mean ± SD. Comparisons were performed with Student's t test. Comparisons were performed with Pearson χ2. MISA, minimally invasive surfactant administration; EISA, endotracheal intubation surfactant administration; Duration 1, placing catheter time, seconds; Duration 2, surfactant infusion duration through the catheter, seconds; Duration 3, total time of administration of surfactant, from introducing of laryngoscope by mouth, placing catheter, surfactant infusion to withdrawn of the catheter, seconds.