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

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

GA (w) Boys Girls p Boys Girls
No of cases Mean (g) SD No of cases Mean (g) SD 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
  1. C Classification; L Low, A Average, H High; GA Gestational Age; SD Standard Deviation; P Percentiles; g gram; w week