Table 1: Demographic and perinatal characteristics of the study neonates.

Characteristic No (N %)
Sex
Male
Female		   425 (62.5%)
255(37.5%)
Mean birth weight (gr) 1713.9 ± 416.7
Birth weight(groups)
500-1000
1001-1500
1501-2000
>2000		   48(7%)
197(29%)
292(43%)
143(21%)
Gestational age
25-28
29-32
>32		   48(7%)
374(55%)
258(38%)
Delivery type
NVD
CS		   201(29.5%)
479(70.5%)
RDS
Yes
No		   524(77%)
156(23%)
Sepsis
Yes
No		   113(16.7%)
567(83.3%)
Mean duration of oxygen therapy (day) 5.21 ± 2.45