Table 4 Hospitalization characteristics

Mechanical ventilation (SIPPV)

99 (48%)

56 (88%)

72 (90%)

< 0.001

Duration of ventilation (days)**

0.0 (0.0, 3.0)

4.0 (3.0, 7.0)

5.0 (3.0, 9.2)

< 0.001

Duration of hospitalization (days)**

15 (11, 21)

37 (23, 52)

53 (36, 70)

< 0.001

Use of transfusions

113 (59%)

55 (86%)

73 (91%)

< 0.001

Use of inotropes

57 (28%)

40 (62%)

53 (66%)

< 0.001

Use of umbilical catheters

99 (48%)

56 (88%)

73 (91%)

< 0.001

Use of central line catheters

16 (8.4%)

20 (32%)

37 (47%)

< 0.001

Use of Hickman catheter

1 (0.5%)

2 (3.2%)

7 (9.0%)

0.001

Necrotizing enterocolitis

12 (6.4%)

18 (29%)

25 (31%)

< 0.001

Bronchopulmonary dysplasia [BPD]

4 (2.0%)

14 (22%)

41 (51%)

< 0.001

Intraventricular hemorrhage

0 (0%)

1 (2.5%)

1 (1.6%)

0.24

Retinopathy of prematurity

2 (1.2%)

6 (10%)

15 (19%)

< 0.001