Table 1 The characteristics of infants with and without symptoms of LO-BSI, who survived to the third day and/or later

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