Demographic data of infants
| Protocol group (n=46) | ECHO group (n=47) | p Value | |
|---|---|---|---|
| Gestational age (weeks) | 27.8 (2.5) | 27.2 (2.6) | 0.277 |
| Birthweight (g) | 1039 (244) | 955 (271) | 0.09 |
| Sex (male/female) | 24/22 | 21/26 | 0.605 |
| Surfactant treatment (n %) | 40 (87%) | 42 (89.4%) | 0.967 |
The values are mean (SD) or number of infants (percentage).