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

BMC Pediatrics

Table 6 Mean birth weight, standard deviation, ponderal index, classification for boys and girls by gestational age

GA (w)	Boys			Girls			p	Boys		Girls
GA (w)	No of cases	Mean (g)	SD	No of cases	Mean (g)	SD	p	PI	C	PI	C
26	55	768.1	170.2	48	680.8	134.8	0.005	2.1	L	1.7	L
27	39	866.6	152.8	41	844.3	156.2	0.52	2.4	L	2.0	L
28	50	968.7	152.9	59	945.3	119.2	0.37	2.2	L	2.1	L
29	52	1057	157.0	42	1023	109.6	0.25	2.0	L	1.9	L
30	70	1246	202.3	49	1151	230.2	0.019	2.1	L	2.0	L
31	89	1409	282.3	74	1374	294.1	0.45	2.0	L	1.9	L
32	223	1705	377.5	171	1711	441.3	0.87	2.2	L	2.2	L
33	258	1750	442.7	211	1692	406.2	0.15	2.3	L	2.3	L
34	473	1917	407.1	392	1862	386.5	0.043	2.4	L	2.4	L
35	541	2035	378.5	515	2046	386.3	0.64	2.4	L	2.4	L
36	868	2382	430.7	812	2335	436.8	0.026	2.4	L	2.4	L
37	1576	2643	427.1	1384	2589	397.0	<0.001	2.5	A	2.5	A
38	3799	2862	404.8	3318	2800	375.1	<0.001	2.6	A	2.6	A
39	6915	3069	382.3	6065	2997	371.4	<0.001	2.7	A	2.7	A
40	8755	3184	410.5	7607	3099	393.6	<0.001	2.8	A	2.7	A
41	3812	3358	445.0	3254	3259	447.4	<0.001	2.8	A	2.8	A
42	1537	3295	463.5	1445	3208	447.3	<0.001	2.8	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