Table 2.

Comparison of mean squared prediction errors between previous models and the current proposed modela

AB
Age GroupCurrent ModelMellits-CheekP valuebAge GroupCurrent Model0.7-0.6 ModelP valueb
a These data demonstrate the comparison of mean squared prediction errors between previous models (A, the models of Mellits and Cheek; B, the 0.7-0.6 × body weight models) and the current proposed model. For the comparison with the Mellits and Cheek models, only common data points were used; for the comparison with the 0.7–0.6 model, all data available to generate the current proposed model were used.
b Likelihood ratio P value versus current model.
0 to 3 mo (n = 26)0.0440.220.00010 to 3 mo (n = 71)0.030.070.0005
3 mo to 13 yr (n = 116)2.011.140.00283 mo to 13 yr (n = 167)1.541.740.4300
>13 yr (n = 94)7.897.400.7545>13 yr (n = 99)7.9312.960.0158
Overall (n = 236)4.113.510.2270Overall (n = 337)3.044.620.0001