The Centers for Disease Control (CDC) published data on the body dimensions of pediatric patients in 2000. This included data on the body length of girls aged from 0 to 36 months.
Equations derived in JMP
predicted body length in cm =
= (A * ((age in months)^3)) + (B * ((age in months)^2)) + (C * (age in months)) + D
NOTE: The tables should be validated prior to clinical use.
|
interval in months |
percentile |
((age)^3) |
((age)^2) |
(age) |
constant |
|---|---|---|---|---|---|
|
0 - 10.5 |
3rd |
0.0137438 |
-0.335089 |
4.028529 |
45.428884 |
|
|
5th |
0.0137334 |
-0.335679 |
4.0551186 |
45.908116 |
|
|
10th |
0.0137422 |
-0.336801 |
4.0942572 |
46.656986 |
|
|
25th |
0.0136568 |
-0.33612 |
4.1360729 |
47.970331 |
|
|
50th |
0.0133257 |
-0.329576 |
4.1347924 |
49.540091 |
|
|
75th |
0.0127218 |
-0.316482 |
4.0807691 |
51.229422 |
|
|
90th |
0.0117999 |
-0.296903 |
3.9779319 |
52.863905 |
|
|
95th |
0.0111098 |
-0.281894 |
3.8909998 |
53.897212 |
|
|
97th |
0.0105759 |
-0.270364 |
3.8223381 |
54.595145 |
|
10.5 - 23.5 |
3rd |
0 |
-0.015076 |
1.4516896 |
53.023089 |
|
|
5th |
0 |
-0.015213 |
1.4669093 |
53.561997 |
|
|
10th |
0 |
-0.015467 |
1.4914396 |
54.381839 |
|
|
25th |
0 |
-0.015872 |
1.533261 |
55.717425 |
|
|
50th |
0 |
-0.016003 |
1.570511 |
57.243295 |
|
|
75th |
0 |
-0.016058 |
1.6073242 |
58.729957 |
|
|
90th |
0 |
-0.016195 |
1.644544 |
60.011293 |
|
|
95th |
0 |
-0.016229 |
1.6656236 |
60.779136 |
|
|
97th |
0 |
-0.016174 |
1.6770522 |
61.287364 |
|
23.5 - 36 |
3rd |
0 |
-0.011277 |
1.3623846 |
53.019303 |
|
|
5th |
0 |
-0.011552 |
1.3851758 |
53.456569 |
|
|
10th |
0 |
-0.012205 |
1.4341923 |
53.924617 |
|
|
25th |
0 |
-0.013132 |
1.509978 |
54.748448 |
|
|
50th |
0 |
-0.014004 |
1.5866648 |
55.758474 |
|
|
75th |
0 |
-0.014828 |
1.664467 |
56.702416 |
|
|
90th |
0 |
-0.015508 |
1.7337253 |
57.529811 |
|
|
95th |
0 |
-0.015865 |
1.773044 |
58.048911 |
|
|
97th |
0 |
-0.016195 |
1.8049341 |
58.284983 |
ICD-10: ,
