Birth Weight for
Gestational Age (GA)
Birth Weight (in g) for GA in Completed Week
Canadian Male Singletons
Birth Weight (in g) for GA in Completed Weeks
Canadian Female Singletons
Source of Information: Michael S. Kramer et al. A New and Improved Population-based Canadian Reference for Birth Weight for Gestational Age. electronic version, August, 2001.
http: //www.pediatrics.org/cgi/content/full/108/2/e35
Pediatrics,
22
23
24
GA
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
338
406
468
3%ile
521
571
627
694
780
885
1,012
1,164
1,344
1,552
1,783
2,024
2,270
2,498
2,684
2,829
2,926
2,960
2,954
368
434
498
5%ile
557
614
677
752
845
959
1,098
1,266
1,460
1,677
1,907
2,144
2,384
2,605
2,786
2,927
3,025
3,070
3,081
401
475
547
10%ile
617
686
763
853
964
1,099
1,259
1,444
1,648
1,866
2,091
2,321
2,552
2,766
2,942
3,079
3,179
3,233
3,249
490
589
690
50%ile
795
908
1,033
1,173
1,332
1,507
1,698
1,906
2,127
2,360
2,600
2,845
3,080
3,290
3,465
3,613
3,733
3,815
3,864
587
714
844
90%ile
981
1,125
1,278
1,445
1,629
1,837
2,069
2,319
2,580
2,851
3,132
3,411
3,665
3,877
4,049
4,200
4,328
4,433
4,528
627
762
902
95%ile
1,048
1,200
1,358
1,532
1,729
1,955
2,209
2,478
2,750
3,029
3,318
3,604
3,857
4,065
4,232
4,382
4,512
4,631
4,747
659
797
940
97%ile
1,092
1,251
1,416
1,598
1,809
2,053
2,327
2,614
2,897
3,184
3,475
3,759
4,003
4,202
4,361
4,501
4,631
4,773
4,941
501
598
697
Mean
800
909
1,026
1,159
1,312
1,487
1,682
1,896
2,123
2,361
2,607
2,855
3,091
3,306
3,489
3,638
3,745
3,800
3,793
111
114
125
SD
147
178
209
241
273
306
339
369
391
410
428
443
449
448
445
447
459
485
527
22
23
24
GA
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
3%ile
332
379
424
469
516
569
634
716
814
938
1,089
1,264
1,467
1,695
1,935
2,177
2,406
2,589
2,722
2,809
2,849
2,862
5%ile
347
403
456
508
562
624
697
787
894
1,026
1,184
1,369
1,581
1,813
2,052
2,286
2,502
2,680
2,814
2,906
2,954
2,975
10%ile
385
450
513
578
645
717
802
903
1,022
1,168
1,346
1,548
1,768
1,998
2,227
2,452
2,658
2,825
2,955
3,051
3,114
3,159
50%ile
466
557
651
751
858
976
1,109
1,259
1,427
1,613
1,817
2,035
2,266
2,506
2,744
2,968
3,169
3,334
3,470
3,576
3,655
3,717
90%ile
552
669
790
918
1,060
1,218
1,390
1,578
1,783
2,004
2,242
2,494
2,761
3,037
3,307
3,543
3,738
3,895
4,034
4,154
4,251
4,333
95%ile
576
706
839
982
1,139
1,313
1,499
1,701
1,918
2,150
2,399
2,664
2,948
3,242
3,523
3,752
3,931
4,076
4,212
4,330
4,423
4,495
97%ile
576
726
887
1,060
1,247
1,446
1,657
1,885
2,121
2,347
2,578
2,825
3,097
3,384
3,660
3,886
4,061
4,202
4,331
4,444
4,554
4,685
Mean
472
564
656
754
860
976
1,107
1,256
1,422
1,604
1,808
2,029
2,266
2,981
3,181
3,350
3,486
3,588
3,656
3,693
2,512
2,754
SD
72
95
121
152
186
222
254
286
319
345
368
389
409
443
439
434
434
439
448
459
426
439
Canadian Male Singletons
Canadian Female Singletons
Birth Weight (g)
Gestational Age (completed weeks)
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
3%ile
10%ile
50%ile
90%ile
95%ile
97%ile
5%ile
5,000
4,500
3,500
2,500
1,500
1,000
0
4,000
3,000
2,000
500
250
750
1,250
1,750
2,250
2,750
3,250
3,750
4,250
4,750
Birth Weight (g)
Gestational Age (completed weeks)
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
3%ile
10%ile
50%ile
90%ile
95%ile
97%ile
5%ile
5,000
4,500
3,500
2,500
1,500
1,000
0
4,000
3,000
2,000
500
250
750
1,250
1,750
2,250
2,750
3,250
3,750
4,250
4,750
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