Patients’ characteristics
| All (n=40) | ELBW (n=13) | Non-ELBW (n=27) | P value | |
| Gestational age (weeks) | 31 (27–34) | 26 (25–26) | 34 (31–35) | 0.78* |
| Birth weight (g) | 1645 (794–2258) | 720 (580–775) | 1960 (1645–2490) | 0.81* |
| Female/male (n) | 19/21 | 6/7 | 13/14 | 0.99† |
| Any respiratory support (n) | 34 | 13 | 21 | 0.15† |
| nCPAP (n) | 26 | 7 | 19 | 0.50† |
| Intratracheal ventilation (n) | 8 | 6 | 2 | 0.01† |
Data given are median and (IQR) for basic characteristics of patients and their type of ventilation.
*Spearman’s rank correlation coefficient (r).
†Fisher Exact test.
ELBW, extremely low birth weight.