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 boys 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 |
-0.0273 |
0.8190984 |
2.4148115 |
|
|
5th |
0 |
-0.026974 |
0.819888 |
2.5760209 |
|
|
10th |
0 |
-0.026659 |
0.8250683 |
2.8172209 |
|
|
25th |
0 |
-0.026659 |
0.8450683 |
3.1972209 |
|
|
50th |
0 |
-0.027965 |
0.8895695 |
3.5792913 |
|
|
75th |
0 |
-0.030185 |
0.952216 |
3.9374422 |
|
|
90th |
0 |
-0.032754 |
1.0227925 |
4.2340206 |
|
|
95th |
0 |
-0.034544 |
1.071941 |
4.4033157 |
|
|
97th |
0 |
-0.03573 |
1.1049457 |
4.5106787 |
|
11.5 - 23.5 |
3rd |
0 |
-0.005624 |
0.3635564 |
4.8643531 |
|
|
5th |
0 |
-0.005789 |
0.3732268 |
4.9863724 |
|
|
10th |
0 |
-0.005969 |
0.3853447 |
5.2118969 |
|
|
25th |
0 |
-0.006254 |
0.4055844 |
5.6211888 |
|
|
50th |
0 |
-0.006618 |
0.4309291 |
6.105201 |
|
|
75th |
0 |
-0.007018 |
0.4587612 |
6.6307255 |
|
|
90th |
0 |
-0.007078 |
0.4739361 |
7.2466696 |
|
|
95th |
0 |
-0.007183 |
0.4857942 |
7.6227448 |
|
|
97th |
0 |
-0.007363 |
0.4978022 |
7.8425 |
|
23.5 - 36 |
3rd |
0 |
0 |
0.1146921 |
7.630477 |
|
|
5th |
0 |
0 |
0.1162273 |
7.8537606 |
|
|
10th |
0 |
0 |
0.119464 |
8.1889168 |
|
|
25th |
0 |
0 |
0.1268884 |
8.7414521 |
|
|
50th |
0 |
0 |
0.1378465 |
9.3616716 |
|
|
75th |
0 |
0 |
0.1529017 |
9.9619792 |
|
|
90th |
0 |
0.000849 |
0.1200689 |
11.215806 |
|
|
95th |
0 |
0.0013252 |
0.1050913 |
11.906642 |
|
|
97th |
0 |
0.0014304 |
0.1085501 |
12.169731 |
