|
Gestational age [weeks]
|
29
|
(28; 29)
|
27
|
(27; 28)
|
<0.001
|
|
Gestational age infants who required surgery [weeks]
|
26
|
(26; 27)
|
25
|
(28; 29)
|
0.002
|
|
Gestational age infants who did not required surgery [week]
|
29
|
(29; 29)
|
28
|
(27; 28)
|
<0.001
|
|
Birth weight [grams]
|
1 114
|
(1 087; 1 141)
|
947
|
(920; 974)
|
<0.001
|
|
CVC [days]
|
15
|
(14; 16)
|
31
|
(27; 34)
|
<0.001
|
|
PVC [days]
|
9
|
(8; 10)
|
18
|
(16; 21)
|
<0.001
|
|
Mechanical ventilation [days]
|
12
|
(10; 13)
|
26
|
(22; 30)
|
<0.001
|
|
CPAP [days]
|
9
|
(8; 9)
|
16
|
(14; 17)
|
<0.001
|
|
Total parenteral nutrition [days]
|
13
|
(12; 14)
|
29
|
(27; 32)
|
<0.001
|
|
surgery in infancy*[No./%]
|
87
|
10.7
|
77
|
18.0
|
<0.001
|
|
Completion of the surveillance
|
|
Death of the patient [No./%]
|
67
|
8.2
|
32
|
7.5
|
0.4
|
|
Transfer [No./%]
|
101
|
12.4
|
48
|
11.2
|
0.2
|
|
Body weight gain [No./%]
|
646
|
79.2
|
345
|
80.8
|
0.9
|
