Table 1.

Demographic data and perinatal characteristics of the study group (neonates with infections) and the control group (healthy newborns) and their mothers. Results are presented as medians and 95% confidence intervals or percentage values.

Investigated group	Study group (n = 29)	Control group (n = 47)	p value
Mothers
(i) Age (years)	28 [24–31]	26 [23–30]	0.41
(ii) Primigravida (no.; %)	17; 58.6%	29; 60.4%	0.78
Perinatal history
(i) Hypertension (no.; %)	3; 10.3%	9; 18.8%	0.31
(ii) Diabetes (no.; %)	4; 13.8%	8; 16.7%	0.38
(iii) Premature rupture of membrane (no.; %)	8; 27.6%	6; 12.5%	0.04
(iv) Streptococcus agalactiae colonization (+) (no.; %)	5; 17.2%	7; 14.5%	0.34
Neonates
(i) Gestational age (weeks)	37 [35–38]	37 [36–39]	0.54
(ii) Gender: female (no.; %)	10; 34.5%	22; 45.8%	0.34
(iii) Birth weight (g)	2570 [2240–2970]	2605 [2350–3020]	0.45
(iv) Apgar 1st min (no.; %)
0–3 pts	2; 6.9%	4; 8.5%
4–7 pts	4; 13.8%	3; 6.4%
8–10 pts	23; 79.3%	40; 85.1%	0.54
(v) Apgar 5th min (no.; %)
0–3 pts	0	0
4–7 pts	5; 17.2%	7; 14.9%
8–10 pts	24; 82.8%	40; 85.1%	0.78
Postnatal complication
(i) Fetal growth disturbances (no.; %)	5; 17.2%	9; 18.8%	0.86
(ii) Perinatal asphyxia (no.; %)	6; 20.7%	7; 14.5%	0.47
(iii) Thermoregulatory disturbance (no.; %)	12; 41.4%	8; 16.7%	0.03
(iv) Respiratory insuf. (no.; %)	15; 51.7%	9; 18.8%	0.02
(v) Circulatory insuf. (no.; %)	8; 27.6%	0	0.04
(vi) Positive blood cultures (no.; %)	4; 13.8%	0	0.53