Does one size fit all? The case for ethnic-specific standards of fetal growth

Kierans, William J; Joseph, KS; Luo, Zhong-Cheng; Platt, Robert; Wilkins, Russell; Kramer, Michael S

doi:10.1186/1471-2393-8-1

BMC Pregnancy and Childbirth

Table 1 Gestational Age-Specific Outcomes for Four Study Groups

From: Does one size fit all? The case for ethnic-specific standards of fetal growth

	Chinese						South Asian						First Nations						Other
	SB	LB	END	SGA₁	SGA₄	FAR	SB	LB	END	SGA₁	SGA₄	FAR	SB	LB	END	SGA₁	SGA₄	FAR	SB	LB	END	SGA₁	SGA₄	FAR
22	13	6	6	1	0	40092	12	12	11	2	1	38670	35	24	23	0	2	56097	357	193	180	17	17	731109
23	8	6	4	0	1	40073	13	9	6	0	1	38646	27	26	19	2	2	56038	257	260	222	21	21	730559
24	8	11	5	2	1	40059	1	19	9	1	1	38624	18	28	16	1	2	55985	237	356	191	29	23	730042
25	6	16	6	0	2	40040	7	19	6	1	1	38604	11	39	11	5	4	55939	130	334	118	21	21	729449
26	2	14	4	2	1	40018	3	33	4	5	4	38578	11	55	22	5	4	55889	142	487	100	39	39	728985
27	4	19	2	2	2	40002	3	33	7	9	3	38542	13	74	10	3	6	55823	102	478	63	44	44	728356
28	4	22	2	2	2	39979	2	40	5	5	4	38506	14	98	10	5	9	55736	153	667	79	63	63	727776
29	4	35	0	3	4	39953	7	43	1	5	4	38464	7	98	6	3	8	55624	95	656	43	69	63	726956
30	3	44	1	2	1	39914	4	72	3	8	7	38414	13	140	8	6	11	55519	141	910	37	93	89	726205
31	2	57	1	4	4	39867	2	61	0	10	7	38338	7	147	7	9	14	55366	90	1033	51	99	97	725154
32	3	89	5	9	9	39808	6	110	3	20	11	38275	17	277	11	12	26	55212	169	1905	66	168	168	724031
33	5	129	2	13	11	39716	7	140	5	25	14	38159	17	332	3	16	28	54918	128	2367	56	190	204	721957
34	1	223	1	11	12	39582	5	288	1	32	24	38012	10	588	4	27	50	54569	154	4423	51	375	360	719462
35	2	353	0	19	24	39358	4	410	3	50	31	37719	10	781	8	40	60	53971	131	7003	54	572	572	714885
36	5	1,005	3	79	86	39,003	9	1,210	2	131	93	37,305	25	2205	6	111	187	53180	215	16468	92	1379	1304	707751
37	7	2,378	3	173	205	37,993	9	2,168	2	255	175	36,086	25	3566	2	213	326	50950	189	31293	90	2665	2558	691068
38	5	7,642	2	749	699	35,608	7	6,180	6	820	566	33,909	22	8669	6	556	795	47359	276	87154	113	7661	7661	659586
39	5	10,626	1	1351	1040	27,961	17	9,480	5	1444	891	27,722	18	10818	8	756	1034	38668	232	139163	103	12752	13250	572156
40	7	12,278	1	1847	1196	17,330	14	12,543	2	2211	1232	18,225	42	20544	20	1529	2016	27832	379	267794	197	25113	26383	432761
41	3	4,177	2	698	407	5,045	7	4,589	1	823	452	5,668	14	5611	6	421	546	7246	183	119539	78	11110	11822	164588
42+	0	865	3	147	85	865	2	1,070	2	232	103	1,072	6	1615	0	163	176	1621	96	44770	57	4200	4315	44866
Sum	97	39995	54	5114	3792		141	38529	84	6089	3625		362	55735	206	3883	5306		3856	727253	2041	66680	69074

SB = stillbirth; LB = live births; END = early neonatal death; SGA₁ = small-for-gestational age based on single standard; SGA₄ = small-for-gestational age based on 4 ethnic-specific standards;
FAR = fetuses at risk
Data source: British Columbia Vital Statistics Agency

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ISSN: 1471-2393

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