Table 1.

Demographic and monitoring data of 49 preterm neonates with NIRS monitoring visible (NIRS group) and of 49 neonates with NIRS monitoring not being visible (control group).

	NIRS group (n = 49)	Control group (n = 49)	p-Value
Gestational age (weeks)	33.1 (32.0–34.0)	33.4 (32.3–34.3)	0.354
Birth weight (g)	1,826 ± 513	1,845 ± 504	0.856
Cesarean section, n	38	36	0.638
Male, n	26	23	0.544
Apgar 5 min	9 (8–9)	9 (8–10)	0.696
Umbilical artery pH	7.30 ± 0.04	7.29 ± 0.06	0.177
Respiratory support			0.699
No respiratory support, n	26	29
Non-invasive respiratory support, n	21	17
Intubated, n	2	3
Surfactant, n	9	7	0.585
Infection, n	9	9	1.000

Continuous data are presented as mean ± SD or median (25th percentile to 75th percentile) based on distribution.