The Centers for Disease Control (CDC) published data on the body dimensions of pediatric patients in 2000. This included data on the body weight of girls aged from 0 to 36 months
Equations derived in JMP
predicted body weight in kilograms =
= (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 - 11.5 |
3rd |
0 |
-0.018069 |
0.6594238 |
2.4393264 |
|
|
5th |
0 |
-0.018276 |
0.6671183 |
2.57433 |
|
|
10th |
0 |
-0.018824 |
0.683077 |
2.7747732 |
|
|
25th |
0 |
-0.020154 |
0.7173855 |
3.0920498 |
|
|
50th |
0 |
-0.021524 |
0.7600854 |
3.436106 |
|
|
75th |
0 |
-0.023353 |
0.8137839 |
3.7596433 |
|
|
90th |
0 |
-0.025028 |
0.8684939 |
4.0361155 |
|
|
95th |
0 |
-0.025983 |
0.9029823 |
4.1981365 |
|
|
97th |
0 |
-0.026557 |
0.9262735 |
4.2999122 |
|
11.5 - 23.5 |
3rd |
0 |
-0.006019 |
0.3965435 |
3.9126836 |
|
|
5th |
0 |
-0.006019 |
0.3985215 |
4.0880682 |
|
|
10th |
0 |
-0.005824 |
0.3964835 |
4.3959615 |
|
|
25th |
0 |
-0.005994 |
0.4108891 |
4.7974825 |
|
|
50th |
0 |
-0.006004 |
0.4242058 |
5.3022552 |
|
|
75th |
0 |
-0.005999 |
0.4421079 |
5.801215 |
|
|
90th |
0 |
-0.005799 |
0.4561039 |
6.3038374 |
|
|
95th |
0 |
-0.005689 |
0.466983 |
6.6036451 |
|
|
97th |
0 |
-0.005709 |
0.4786713 |
6.7654983 |
|
23.5 - 36 |
3rd |
0 |
-0.000834 |
0.161568 |
6.5904383 |
|
|
5th |
0 |
0 |
0.1155428 |
7.4514134 |
|
|
10th |
0 |
0 |
0.1209621 |
7.6868843 |
|
|
25th |
0 |
0 |
0.1330761 |
8.0538978 |
|
|
50th |
0 |
0 |
0.1507692 |
8.4423077 |
|
|
75th |
0 |
0 |
0.1735168 |
8.8256921 |
|
|
90th |
0 |
0 |
0.2012511 |
9.1060828 |
|
|
95th |
0 |
0 |
0.2224005 |
9.2202131 |
|
|
97th |
0 |
0 |
0.2358182 |
9.3346364 |
