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 boys 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 |
0.0195311 |
-0.463848 |
4.9578047 |
45.419836 |
|
|
5th |
0.018962 |
-0.451489 |
4.8868335 |
46.033716 |
|
|
10th |
0.0181232 |
-0.433698 |
4.7878855 |
46.983423 |
|
|
25th |
0.0169819 |
-0.409201 |
4.6555181 |
48.562829 |
|
|
50th |
0.0160998 |
-0.390212 |
4.5620862 |
50.310378 |
|
|
75th |
0.0155484 |
-0.379001 |
4.5239133 |
52.048317 |
|
|
90th |
0.015499 |
-0.378025 |
4.5462168 |
53.611575 |
|
|
95th |
0.0155483 |
-0.380085 |
4.5833587 |
54.542 |
|
|
97th |
0.0156635 |
-0.383297 |
4.6196172 |
55.145206 |
|
10.5 - 23.5 |
3rd |
0 |
-0.016593 |
1.4496923 |
55.411082 |
|
|
5th |
0 |
-0.016538 |
1.4658462 |
55.812552 |
|
|
10th |
0 |
-0.01649 |
1.4898819 |
56.466412 |
|
|
25th |
0 |
-0.016387 |
1.5258736 |
57.658105 |
|
|
50th |
0 |
-0.016484 |
1.5667912 |
59.084 |
|
|
75th |
0 |
-0.016717 |
1.6051703 |
60.650693 |
|
|
90th |
0 |
-0.017019 |
1.6354451 |
62.213983 |
|
|
95th |
0 |
-0.017157 |
1.6492143 |
63.236122 |
|
|
97th |
0 |
-0.017397 |
1.6619148 |
63.889304 |
|
23.5 - 36 |
3rd |
0 |
-0.0051 |
0.9863297 |
59.984904 |
|
|
5th |
0 |
-0.005453 |
1.006978 |
60.505814 |
|
|
10th |
0 |
-0.005941 |
1.0392473 |
61.272392 |
|
|
25th |
0 |
-0.006655 |
1.0905 |
62.572131 |
|
|
50th |
0 |
-0.007713 |
1.1707527 |
63.603659 |
|
|
75th |
0 |
-0.008709 |
1.255033 |
64.510584 |
|
|
90th |
0 |
-0.009732 |
1.3456429 |
65.044933 |
|
|
95th |
0 |
-0.010343 |
1.4032637 |
65.281377 |
|
|
97th |
0 |
-0.010749 |
1.442456 |
65.399033 |
ICD-10: ,
