Reference curves of birth weight, length, and head circumference for gestational ages in Yogyakarta, Indonesia

BMC Pediatrics

Table 7 Mean birth weight, standard deviation, Ponderal index and classification by birth order and gestational age

GA (w)	First child			Later children			p	First child		Later children
GA (w)	No of cases	Mean (g)	SD	No of cases	Mean (g)	SD	p	PI	C	PI	C
26	48	723.6	173.7	55	730.7	148.8	0.83	2.0	L	1.9	L
27	40	832.8	145.3	40	877.5	160.8	0.18	2.2	L	2.3	L
28	60	951.6	139.1	49	961.3	132.2	0.71	2.1	L	2.1	L
29	56	1041	107.7	38	1043	175.3	0.94	2.0	L	2.0	L
30	57	1199	203.6	62	1214	232.6	0.70	2.1	L	2.0	L
31	84	1413	315.6	79	1372	254.2	0.37	2.0	L	2.0	L
32	214	1698	393.4	180	1720	421.0	0.58	2.2	L	2.2	L
33	228	1689	407.1	241	1757	443.7	0.083	2.3	L	2.3	L
34	508	1874	386.2	357	1917	414.8	0.12	2.3	L	2.4	L
35	628	2034	361.9	428	2049	410.4	0.54	2.4	L	2.4	L
36	906	2328	390.9	774	2396	477.6	0.002	2.4	L	2.5	A
37	1525	2569	381.3	1435	2669	440.7	<0.001	2.5	A	2.6	A
38	3510	2783	361.3	3607	2883	414.7	<0.001	2.6	A	2.7	A
39	6159	2983	359.5	6821	3083	389.7	<0.001	2.7	A	2.7	A
40	7527	3075	377.2	8835	3204	418.0	<0.001	2.7	A	2.8	A
41	3289	3246	443.1	3777	3370	445.8	<0.001	2.8	A	2.9	H
42	1350	3199	440.7	1632	3297	466.9	<0.001	2.7	A	2.8	A

C Classification; L Low; A Average; H High; GA Gestational Age; SD Standard Deviation; P Percentiles; g gram; w week

ISSN: 1471-2431