Characteristics

Premature infants N = 37

P-value

Complicated n = 16

healthy = 21

Origin

<50 km

>50 km

4 (22.2%)

12 (63.2%)

14 (77.8%)

7 (36.8%)

0.02

Age of mother

<35 years

>35 years

14 (46.7%)

2 (28.6%)

16 (53.3%)

5 (71.4%)

0.67

Gestity/Parity

Primiparous

Multiparous

8 (44.4%)

8 (42.1%)

10 (55.6%)

11 (57.9%)

1

Term of pregnancy

<33 weeks of amenorrhea

>33 weeks of amenorrhea

13 (65%)

3 (17.6%)

7 (35.0%)

14 (82.4%)

0.007

Pregnancy care

Yes

Non

9 (36%)

6 (60%)

16 (64.0%)

4 (40.0%)

0.45

Mode of delivery

vaginally

Caesarean

15 (42.9%)

1 (50.0%)

20 (57.1%)

1 (50.0%)

1

Infectious anamnesis

Positive

Negative

10 (47.6%)

5 (33.3%)

11 (52.4%)

10 (66.7%)

0.396

Apgar

>7

<7

9 (31.0%)

6 (100.0%)

20 (69.0%)

0 (0.0%)

0.003

Weight (grams)

<1500 g

1500 - 2500 g

>2500 g

7 (87.5%)

5 (41.7%)

3 (21.4%)

1 (12.5%)

7 (58.3%)

11 (78.6%)

0.02

Sex

Male

Female

7 (43.8%)

9 (42.9%)

9 (56.3%)

12 (57.1%)

1