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Table 1 Demographical characteristics of the patients are summarized

From: Bedside PDA ligation in premature infants less than 28 weeks and 1000 grams

Characteristic n = 26
Birth weight range 510–960
Gestational age weeks 23–28
Female 15 (57 %)
Respiratory distress syndrome 26 (100 %)
Inotropes 22 (84.6 %)
Mortality 5 (19.2 %)
Sepsis 20 (76.9 %)
Severe intraventricular hemorrhage 10 (38.4 %)
Necrotizing enterocolitis 7 (26.9 %)
Severe renal dysfunction 5 (19.2 %)
Retinopathy of prematurity 8 (30.7 %)
Another cardiac pathology 6 (23.0 %)
Chronic lung disease 16 (61.5 %)
Time on ventilator; days, minimum-maximum 1–181
Time to discharge; days, minimum-maximum 40–238