Different settings of place of midwife-led birth: evaluation of a midwife-led birth centre

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Table 1 Characteristics of women in primary care at the onset of labour subdivided for planned place of birth and the period before and after the introduction of the midwife-led birth centre

	Before introduction of the birth centre				After introduction of the birth centre						Birth centre (N)	%	C	D
	Home (n)	%	Hospital (n)	%	Home (n)	%	A	Hospital (n)	%	B	Birth centre (N)	%
	443	21	1391	67	470	12	A	1583	41	B	1671	44
Parity							*			*			*	*
Primiparous	246	56	850	61	191	41		852	54		970	58
Multiparous	196	44	541	39	278	59		730	46		695	42
Maternal age										*			*	*
<19 years	9	2	48	3	4	1		48	3		55	3
20–25 years	28	6	185	13	24	5		142	9		205	12
25–34 years	279	63	870	63	306	65		1028	65		1055	63
>35 years	105	24	215	15	133	28		348	22		334	20
Ethnic background													*	*
Western	351	79	723	52	352	75		783	49		584	35
Non Western	50	11	416	30	64	14		419	26		869	52
Neighbourhood													*	*
Privileged neighbourhood	293	66	802	58	321	68		963	61		790	47
Underprivileged neighbourhood	150	34	589	42	149	32		620	39		881	53
Married status										*			*	*
Married/living together	398	90	1173	84	435	93		1363	86		1303	78
Single	37	8	218	16	30	6		180	11		340	20
Education													*
Low	na		na		7	1		20	1		52	3
Middle					17	4		77	5		276	17
High					73	16		138	9		337	20
BMI														*
<20	67	15	205	15	79	17		230	15		251	15
20–30	339	77	1048	75	350	74		1165	74		1281	77
>30	26	6	120	9	23	5		133	8		100	6
Folic acid use							*			*			*	*
No	76	17	338	24	46	10		264	17		303	18
Preconceptional	53	12	177	13	126	27		349	22		429	26
Only during pregnancy	297	67	823	59	283	60		939	59		896	54
Antenatal care >14 weeks										*			*	*
No	359	81	1084	78	411	87		1353	85		1357	81
Yes	84	19	307	22	59	13		230	15		314	19
Gestational age										*
<34 weeks	5	1	10	1	2	0		17	1		12	1
35–36 weeks	4	1	19	1	4	1		32	2		33	2
37 weeks	11	2	61	4	13	3		67	4		69	4
38–41 weeks	422	95	1286	92	451	96		1464	92		1553	93
>41 weeks	1	0	12	1	0	0		2	0		4	0
Big3 outcomes
SGA	29	7	107	8	23	5		121	8		120	7
Premature	6	1	28	2	6	1		46	3		44	3
Congenital abnomality	8	2	59	4	2	0		7	0		24	1
Combination Big3	3	1	13	1	1	0		3	0		8	0
Total Big3	46	10	207	15	32	7		177	11	*	196	12	*

na not available
A = home before versus after the introduction of the midwife-led birth centre
B = hospital before versus after the introduction of the midwife-led birth centre
C = birth centre versus home (after the introduction of the midwife-led birth centre)
D = birth centre versus hospital (after the introduction of the midwife-led birth centre)
* p < 0.05 (Chi square test or Fisher exact test)