Clinical characteristics

RDS

p-value

OR (IC-95%)

Present

Absent

Gyneco-obstetric

Delivery route (n (%))1/

Cesarean

65 (47.79)

71 (52.21)

0.002*

2.75*** (1.44 - 5.23)

Vaginal

17 (25.00)

51 (75.00)

Prenatal controls (n (%))1/

<5

4 (44.44)

5 (55.56)

0.790

1.20 (0.31 - 4.61)

≥5

78 (40.00)

117 (60.00)

Maternal risk factors (n (%))1/

Chorioamnionitis

1 (33.33)

2 (66.67)

1.000

0.74 (0.10 - 8.31)

Premature rupture of membranes ≥18h

11 (44.00)

14 (56.00)

0.679

1.20 (0.51 - 2.78)

Fever

4 (44.44)

5 (55.56)

1.000

1.20 (0.31 - 4.61)

Vaginitis

51 (53.13)

45 (46.88)

0.000*

2.81*** (1.58 - 5.02)

Bacteriuria

11 (36.67)

19 (63.33)

0.669

0.84 (0.38 - 1.87)

Foul-smelling amniotic fluid

1 (33.33)

2 (66.67)

1.000

0.74 (0.07 - 8.24)

Neonatal

Gender (n (%))1/

Male

47 (41.23)

67 (58.77)

0.735

1.10 (0.63 - 1.94)

Female

35 (38.89)

55 (61.11)

5-min Apgar score (n (%))1/

<7

4 (100.00)

0 (0.00)

0.025*

-

≥7

78 (39.00)

122 (61.00)

Birthweight (mean (SD))2/ gr

2628 (462)

2499 (519)

0.017**

-

Gestational age (GA) (mean (SD))2/weak

36 (1.93)

38 (1.89)

0.000**

-

Small for Gestational age (n (%))1/

8 (25.81)

23 (74.19)

0.076

0.47 (0.20 - 1.10)

Newborn (n (%))1/

Late preterm

57 (55.88)

45 (44.12)

0.000*

3.90*** (2.15 - 7.09)

Term infant

25 (24.51)

77 (75.49)

Postnatal

Nasal cannula oxygen (n (%))1/

79 (96.34)

1 (0.82)

0.000*

-

NIRS (n (%))1/

42 (51.22)

1 (0.82)

0.000*

-

CMV (n (%))1/

9 (10.98)

0 (0.00)

0.004*

-

Admission NICU (n (%))1/

49 (59.76)

2 (1.64)

0.000*

Days length of hospital stay (mean (SD))3/

5.84 (4.77)

3.20 (1.89)

0.000**