Simplified field tables Head circumference-for-age GIRLS Birth to 5 years (z-scores) Year: Month
Months
-3 SD
-2 SD
-1 SD
Median
1 SD
2 SD
3 SD
0: 0
0
30.3
31.5
32.7
33.9
35.1
36.2
37.4
0: 1
1
33.0
34.2
35.4
36.5
37.7
38.9
40.1
0: 2
2
34.6
35.8
37.0
38.3
39.5
40.7
41.9
0: 3
3
35.8
37.1
38.3
39.5
40.8
42.0
43.3
0: 4
4
36.8
38.1
39.3
40.6
41.8
43.1
44.4
0: 5
5
37.6
38.9
40.2
41.5
42.7
44.0
45.3
0: 6
6
38.3
39.6
40.9
42.2
43.5
44.8
46.1
0: 7
7
38.9
40.2
41.5
42.8
44.1
45.5
46.8
0: 8
8
39.4
40.7
42.0
43.4
44.7
46.0
47.4
0: 9
9
39.8
41.2
42.5
43.8
45.2
46.5
47.8
0:10
10
40.2
41.5
42.9
44.2
45.6
46.9
48.3
0:11
11
40.5
41.9
43.2
44.6
45.9
47.3
48.6
1: 0
12
40.8
42.2
43.5
44.9
46.3
47.6
49.0
1: 1
13
41.1
42.4
43.8
45.2
46.5
47.9
49.3
1: 2
14
41.3
42.7
44.1
45.4
46.8
48.2
49.5
1: 3
15
41.5
42.9
44.3
45.7
47.0
48.4
49.8
1: 4
16
41.7
43.1
44.5
45.9
47.2
48.6
50.0
1: 5
17
41.9
43.3
44.7
46.1
47.4
48.8
50.2
1: 6
18
42.1
43.5
44.9
46.2
47.6
49.0
50.4
1: 7
19
42.3
43.6
45.0
46.4
47.8
49.2
50.6
1: 8
20
42.4
43.8
45.2
46.6
48.0
49.4
50.7
1: 9
21
42.6
44.0
45.3
46.7
48.1
49.5
50.9
1:10
22
42.7
44.1
45.5
46.9
48.3
49.7
51.1
1:11
23
42.9
44.3
45.6
47.0
48.4
49.8
51.2
2: 0
24
43.0
44.4
45.8
47.2
48.6
50.0
51.4
2: 1
25
43.1
44.5
45.9
47.3
48.7
50.1
51.5
2: 2
26
43.3
44.7
46.1
47.5
48.9
50.3
51.7
2: 3
27
43.4
44.8
46.2
47.6
49.0
50.4
51.8
2: 4
28
43.5
44.9
46.3
47.7
49.1
50.5
51.9
2: 5
29
43.6
45.0
46.4
47.8
49.2
50.6
52.0
Head circumference-for-age GIRLS Birth to 5 years (z-scores) Year: Month
Months
-3 SD
-2 SD
-1 SD
Median
1 SD
2 SD
3 SD
2: 6
30
43.7
45.1
46.5
47.9
49.3
50.7
52.2
2: 7
31
43.8
45.2
46.6
48.0
49.4
50.9
52.3
2: 8
32
43.9
45.3
46.7
48.1
49.6
51.0
52.4
2: 9
33
44.0
45.4
46.8
48.2
49.7
51.1
52.5
2:10
34
44.1
45.5
46.9
48.3
49.7
51.2
52.6
2:11
35
44.2
45.6
47.0
48.4
49.8
51.2
52.7
3: 0
36
44.3
45.7
47.1
48.5
49.9
51.3
52.7
3: 1
37
44.4
45.8
47.2
48.6
50.0
51.4
52.8
3: 2
38
44.4
45.8
47.3
48.7
50.1
51.5
52.9
3: 3
39
44.5
45.9
47.3
48.7
50.2
51.6
53.0
3: 4
40
44.6
46.0
47.4
48.8
50.2
51.7
53.1
3: 5
41
44.6
46.1
47.5
48.9
50.3
51.7
53.1
3: 6
42
44.7
46.1
47.5
49.0
50.4
51.8
53.2
3: 7
43
44.8
46.2
47.6
49.0
50.4
51.9
53.3
3: 8
44
44.8
46.3
47.7
49.1
50.5
51.9
53.3
3: 9
45
44.9
46.3
47.7
49.2
50.6
52.0
53.4
3:10
46
45.0
46.4
47.8
49.2
50.6
52.1
53.5
3:11
47
45.0
46.4
47.9
49.3
50.7
52.1
53.5
4: 0
48
45.1
46.5
47.9
49.3
50.8
52.2
53.6
4: 1
49
45.1
46.5
48.0
49.4
50.8
52.2
53.6
4: 2
50
45.2
46.6
48.0
49.4
50.9
52.3
53.7
4: 3
51
45.2
46.7
48.1
49.5
50.9
52.3
53.8
4: 4
52
45.3
46.7
48.1
49.5
51.0
52.4
53.8
4: 5
53
45.3
46.8
48.2
49.6
51.0
52.4
53.9
4: 6
54
45.4
46.8
48.2
49.6
51.1
52.5
53.9
4: 7
55
45.4
46.9
48.3
49.7
51.1
52.5
54.0
4: 8
56
45.5
46.9
48.3
49.7
51.2
52.6
54.0
4: 9
57
45.5
46.9
48.4
49.8
51.2
52.6
54.1
4:10
58
45.6
47.0
48.4
49.8
51.3
52.7
54.1
4:11
59
45.6
47.0
48.5
49.9
51.3
52.7
54.1
5: 0
60
45.7
47.1
48.5
49.9
51.3
52.8
54.2
WHO Child Growth Standards