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 2 to 20 years.
Equations derived in JMP
predicted 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 |
|---|---|---|---|---|---|
|
24 – 150.5 |
3rd |
0.0000049 |
-0.000602 |
0.1450475 |
6.6978052 |
|
|
5th |
0.0000048 |
-0.000515 |
0.1416888 |
6.9749275 |
|
|
10th |
0.0000045 |
-0.000375 |
0.1367047 |
7.406359 |
|
|
25th |
0.0000041 |
-0.000101 |
0.127097 |
8.2089734 |
|
|
50th |
0.0000034 |
0.0002558 |
0.1170257 |
9.1516402 |
|
|
75th |
0.0000027 |
0.0006922 |
0.1079236 |
10.143028 |
|
|
90th |
0.0000019 |
0.0011448 |
0.104946 |
10.978314 |
|
|
95th |
0.0000014 |
0.0014666 |
0.1064117 |
11.414167 |
|
|
97th |
0.0000011 |
0.0016729 |
0.1114694 |
11.611299 |
|
150.5 – 198.5 |
3rd |
0 |
-0.00178 |
0.8530264 |
-56.44661 |
|
|
5th |
0 |
-0.001873 |
0.8835634 |
-57.75919 |
|
|
10th |
0 |
-0.002047 |
0.9416722 |
-60.57716 |
|
|
25th |
0 |
-0.00237 |
1.0504747 |
-65.75317 |
|
|
50th |
0 |
-0.002835 |
1.2109776 |
-74.06679 |
|
|
75th |
0 |
-0.003404 |
1.4159274 |
-85.20665 |
|
|
90th |
0 |
-0.004013 |
1.6545041 |
-99.32988 |
|
|
95th |
0 |
-0.004321 |
1.7999835 |
-108.2632 |
|
|
97th |
0 |
-0.004382 |
1.8633653 |
-111.8993 |
|
198.5 - 240 |
3rd |
0 |
-0.001256 |
0.6070355 |
-28.28991 |
|
|
5th |
0 |
-0.001133 |
0.5564049 |
-21.99527 |
|
|
10th |
0 |
-0.00094 |
0.4775954 |
-12.06983 |
|
|
25th |
0 |
-0.000585 |
0.3322054 |
6.4564967 |
|
|
50th |
0 |
-0.000173 |
0.1643004 |
28.803447 |
|
|
75th |
-0.000024 |
0.0160418 |
-3.445571 |
302.41743 |
|
|
90th |
-0.000026 |
0.0172677 |
-3.700444 |
328.98488 |
|
|
95th |
-0.000017 |
0.0108371 |
-2.190645 |
219.8463 |
|
|
97th |
0 |
-0.001131 |
0.5845993 |
13.914944 |
