Table 2.

Clinical characteristics of the study sample.

		Preterm infants	Term infants
Number of patients		25	25
At birth	Gestational age (weeks)	30 (25.1–31.9; 2.7)	39.7 (37.3–41.3; 1.5)
	Sex (female / male)	9/16	9/16
	Multiple birth (%)	24	0
	Body weight (g)	1315 (550–1930; 573)	3605 (2190–4010; 698)
	Head circumference* (cm)	28.2 (22–32; 2.6)	35 (32–37.5; 1.5)
	Cesarean section (%)	92	32
	Cephalic birth presentation (%)	76	96
	Asphyxia (%)	0	0
At the time of image acquisition	Postmenstrual age (weeks)	40 (38.6–41.6; 1.7)	39.7 (37.3–41.3; 1.5)
	Body weight (g)	3480 (1900–4750; 1045)	3605 (2190–4010; 698)
	Head circumference* (cm)	36 (30–38.5; 2.8)	35 (32–37.5; 1.5)

*Manually measured; numerical data are displayed as median (minimum–maximum; interquartile range).