Head circumference-for-age GIRLS Birth to 5 years (z-scores) Month
L
M
S
SD
0 1 2 3 4 5 6
0 1 2 3 4 5 6
1 1 1 1 1 1 1
33.8787 36.5463 38.2521 39.5328 40.5817 41.4590 42.1995
0.03496 0.03210 0.03168 0.03140 0.03119 0.03102 0.03087
0: 7 0: 8 0: 9 0:10 0:11 1: 0
7 8 9 10 11 12
1 1 1 1 1 1
42.8290 43.3671 43.8300 44.2319 44.5844 44.8965
1: 1: 1: 1: 1: 1:
1 2 3 4 5 6
13 14 15 16 17 18
1 1 1 1 1 1
1: 7 1: 8 1: 9 1:10 1:11 2: 0
19 20 21 22 23 24
1 1 1 1 1 1
Year: Month 0: 0: 0: 0: 0: 0: 0:
Z-scores (head circumference in cm) -1 SD Median 1 SD
-3 SD
-2 SD
1.1844 1.1731 1.2118 1.2413 1.2657 1.2861 1.3027
30.3 33.0 34.6 35.8 36.8 37.6 38.3
31.5 34.2 35.8 37.1 38.1 38.9 39.6
32.7 35.4 37.0 38.3 39.3 40.2 40.9
33.9 36.5 38.3 39.5 40.6 41.5 42.2
0.03075 0.03063 0.03053 0.03044 0.03035 0.03027
1.3170 1.3283 1.3381 1.3464 1.3531 1.3590
38.9 39.4 39.8 40.2 40.5 40.8
40.2 40.7 41.2 41.5 41.9 42.2
41.5 42.0 42.5 42.9 43.2 43.5
45.1752 45.4265 45.6551 45.8650 46.0598 46.2424
0.03019 0.03012 0.03006 0.02999 0.02993 0.02987
1.3638 1.3683 1.3724 1.3755 1.3786 1.3813
41.1 41.3 41.5 41.7 41.9 42.1
42.4 42.7 42.9 43.1 43.3 43.5
46.4152 46.5801 46.7384 46.8913 47.0391 47.1822
0.02982 0.02977 0.02972 0.02967 0.02962 0.02957
1.3841 1.3867 1.3891 1.3913 1.3933 1.3952
42.3 42.4 42.6 42.7 42.9 43.0
43.6 43.8 44.0 44.1 44.3 44.4
WHO Child Growth Standards
2 SD
3 SD
35.1 37.7 39.5 40.8 41.8 42.7 43.5
36.2 38.9 40.7 42.0 43.1 44.0 44.8
37.4 40.1 41.9 43.3 44.4 45.3 46.1
42.8 43.4 43.8 44.2 44.6 44.9
44.1 44.7 45.2 45.6 45.9 46.3
45.5 46.0 46.5 46.9 47.3 47.6
46.8 47.4 47.8 48.3 48.6 49.0
43.8 44.1 44.3 44.5 44.7 44.9
45.2 45.4 45.7 45.9 46.1 46.2
46.5 46.8 47.0 47.2 47.4 47.6
47.9 48.2 48.4 48.6 48.8 49.0
49.3 49.5 49.8 50.0 50.2 50.4
45.0 45.2 45.3 45.5 45.6 45.8
46.4 46.6 46.7 46.9 47.0 47.2
47.8 48.0 48.1 48.3 48.4 48.6
49.2 49.4 49.5 49.7 49.8 50.0
50.6 50.7 50.9 51.1 51.2 51.4
Head circumference-for-age GIRLS Birth to 5 years (z-scores) Month
L
M
S
SD
1 2 3 4 5 6
25 26 27 28 29 30
1 1 1 1 1 1
47.3204 47.4536 47.5817 47.7045 47.8219 47.9340
0.02953 0.02949 0.02945 0.02941 0.02937 0.02933
2: 7 2: 8 2: 9 2:10 2:11 3: 0
31 32 33 34 35 36
1 1 1 1 1 1
48.0410 48.1432 48.2408 48.3343 48.4239 48.5099
3: 3: 3: 3: 3: 3:
1 2 3 4 5 6
37 38 39 40 41 42
1 1 1 1 1 1
3: 7 3: 8 3: 9 3:10 3:11 4: 0
43 44 45 46 47 48
1 1 1 1 1 1
Year: Month 2: 2: 2: 2: 2: 2:
Z-scores (head circumference in cm) -1 SD Median 1 SD
-3 SD
-2 SD
1.3974 1.3994 1.4013 1.4030 1.4045 1.4059
43.1 43.3 43.4 43.5 43.6 43.7
44.5 44.7 44.8 44.9 45.0 45.1
45.9 46.1 46.2 46.3 46.4 46.5
47.3 47.5 47.6 47.7 47.8 47.9
0.02929 0.02926 0.02922 0.02919 0.02915 0.02912
1.4071 1.4087 1.4096 1.4109 1.4116 1.4126
43.8 43.9 44.0 44.1 44.2 44.3
45.2 45.3 45.4 45.5 45.6 45.7
46.6 46.7 46.8 46.9 47.0 47.1
48.5926 48.6722 48.7489 48.8228 48.8941 48.9629
0.02909 0.02906 0.02903 0.02900 0.02897 0.02894
1.4136 1.4144 1.4152 1.4159 1.4165 1.4170
44.4 44.4 44.5 44.6 44.6 44.7
45.8 45.8 45.9 46.0 46.1 46.1
49.0294 49.0937 49.1560 49.2164 49.2751 49.3321
0.02891 0.02888 0.02886 0.02883 0.02880 0.02878
1.4174 1.4178 1.4186 1.4189 1.4191 1.4198
44.8 44.8 44.9 45.0 45.0 45.1
46.2 46.3 46.3 46.4 46.4 46.5
WHO Child Growth Standards
2 SD
3 SD
48.7 48.9 49.0 49.1 49.2 49.3
50.1 50.3 50.4 50.5 50.6 50.7
51.5 51.7 51.8 51.9 52.0 52.2
48.0 48.1 48.2 48.3 48.4 48.5
49.4 49.6 49.7 49.7 49.8 49.9
50.9 51.0 51.1 51.2 51.2 51.3
52.3 52.4 52.5 52.6 52.7 52.7
47.2 47.3 47.3 47.4 47.5 47.5
48.6 48.7 48.7 48.8 48.9 49.0
50.0 50.1 50.2 50.2 50.3 50.4
51.4 51.5 51.6 51.7 51.7 51.8
52.8 52.9 53.0 53.1 53.1 53.2
47.6 47.7 47.7 47.8 47.9 47.9
49.0 49.1 49.2 49.2 49.3 49.3
50.4 50.5 50.6 50.6 50.7 50.8
51.9 51.9 52.0 52.1 52.1 52.2
53.3 53.3 53.4 53.5 53.5 53.6
Head circumference-for-age GIRLS Birth to 5 years (z-scores) Month
L
M
S
SD
1 2 3 4 5 6
49 50 51 52 53 54
1 1 1 1 1 1
49.3877 49.4419 49.4947 49.5464 49.5969 49.6464
0.02875 0.02873 0.02870 0.02868 0.02865 0.02863
4: 7 4: 8 4: 9 4:10 4:11 5: 0
55 56 57 58 59 60
1 1 1 1 1 1
49.6947 49.7421 49.7885 49.8341 49.8789 49.9229
0.02861 0.02859 0.02856 0.02854 0.02852 0.02850
Year: Month 4: 4: 4: 4: 4: 4:
Z-scores (head circumference in cm) -1 SD Median 1 SD
-3 SD
-2 SD
1.4199 1.4205 1.4205 1.4210 1.4210 1.4214
45.1 45.2 45.2 45.3 45.3 45.4
46.5 46.6 46.7 46.7 46.8 46.8
48.0 48.0 48.1 48.1 48.2 48.2
49.4 49.4 49.5 49.5 49.6 49.6
1.4218 1.4221 1.4220 1.4223 1.4226 1.4228
45.4 45.5 45.5 45.6 45.6 45.7
46.9 46.9 46.9 47.0 47.0 47.1
48.3 48.3 48.4 48.4 48.5 48.5
49.7 49.7 49.8 49.8 49.9 49.9
WHO Child Growth Standards
2 SD
3 SD
50.8 50.9 50.9 51.0 51.0 51.1
52.2 52.3 52.3 52.4 52.4 52.5
53.6 53.7 53.8 53.8 53.9 53.9
51.1 51.2 51.2 51.3 51.3 51.3
52.5 52.6 52.6 52.7 52.7 52.8
54.0 54.0 54.1 54.1 54.1 54.2