Table 2.

Summary of patient demographics from center 2 (IgG Fc glycosylation; infants and mothers of preterm infants).

	<28 weeks	≥28 weeks	Term infants	Total
INFANTS
n	43	43	15	101
Gestational age [weeks]	26.1 ± 1.2	29.8 ± 1.6	39.6 ± 1.2	29.7 ± 4.7
Birth weight [g]	809 ± 232	1260 ± 229	3220 ± 656	1359 ± 871
Male Gender	26 (60)	18 (42)	8 (53)	52 (51)
Multiple	11 (26)	14 (33)	2 (13)	27 (27)
EOS	13 (30)	6 (14)	1 (7)	20 (20)
LOS	22 (51)	6 (14)	0 (0)	28 (28)
NEC	2 (9)	0 (0)	0 (0)	2 (2)
FIP	4 (9)	0 (0)	0 (0)	4 (4)
IVH	12 (28)	2 (5)	0 (0)	14 (14)
BPD	14 (33)	7 (16)	0 (0)	21 (21)
Cause of delivery
Preterm labor or AIS	31 (72)	27 (63)	1 (7)	59 (58)
Pathological doppler, placental abruption, pre-eclampsia	6 (14)	13 (30)	1 (7)	20 (20)
Others	6 (14)	3 (7)	13 (87)	22 (22)
MOTHERS
n	16	25		41
Age of mother at birth [years]	33 ± 6	32 ± 4		32 ± 5
Gestational age [weeks]	25.8 ± 1.6	31.2 ± 2.1		29.1 ± 3.3
Birth weight [g]	756 ± 279	1484 ± 511		1200 ± 562
Male Gender	11 (69)	11 (44)		22 (54)
Multiple	2 (13)	4 (16)		6 (15)
EOS	7 (44)	2 (8)		9 (22)
LOS	9 (56)	1 (4)		10 (24)
NEC	2 (13)	0 (0)		2 (5)
FIP	2 (13)	0 (0)		2 (5)
IVH	4 (25)	0 (0)		4 (10)
BPD	6 (38)	0 (0)		6 (15)
Cause of delivery
Preterm labor or AIS	9 (56)	14 (56)		23 (56)
Pathological doppler, placental abruption, pre-eclampsia	3 (19)	8 (32)		11 (27)
Others	4 (25)	3 (12)		7 (17)
MOTHER-INFANT-PAIRS
n	12	8	0	20

EOS, early-onset sepsis; LOS, late-onset sepsis; AIS, amnion infection syndrome; NEC, necrotizing enterocolitis; FIP, focal intestinal perforation; IVH, intraventricular hemorrhage; BPD, bronchopulmonary dysplasia. Data are described as mean ± standard deviation or n (%).