Retrospective cohort study of neonatal blood transfusion in China

BMC Pediatrics

Table 1 Basic demographic characteristics of mothers in the neonatal blood transfusion cohort

		< 1500 g			1500-2500 g			≥ 2500 g
		RBT	NRBT	P	RBT	NRBT	P	RBT	NRBT	P
Total (n)		263	1054		1104	297		1025	178
Age		30 (19–44)	30 (18–42)	0.194	30 (16–45)	30 (18–47)	0.659	30 (17–44)	30 (14–44)	0.658
Mode of delivery(n)	Natural delivery	110	471	0.755	345	111	0.076	443	77	0.486
	Midwifery	4	8		12	5		21	4
	Cesarean section	148	574		747	181		560	97
	Unknown	1	1		0	0		1	0
Number of births(n)	Single fetus	166	734	0.062	771	215	0.324	962	164	0.773
	Multiple births	92	309		321	78		48	7
	Unknown	5	11		12	4		15	7
Pregnancy times(n)	1	68	387	0.012	375	107	0.312	345	64	0.640
	2	85	302		304	90		331	55
	3 times or more	94	318		374	92		332	54
	Unknown	16	47		51	8		17	5
Parity(n)	1	112	484	0.282	447	143	0.065	474	89	0.600
	2	121	450		522	119		462	66
	3 times or more	21	77		96	28		71	18
	Unknown	9	43		39	7		18	5
Number of mothers with complications (n)		117	453	0.009	401	118	0.944	276	39	0.149

ISSN: 1471-2431