Table 5.
Comparison of number of events in low, medium and high risk groups for various low and high-dimensional models using Laplacian penalization for pediatric trauma data. MST stands for mean observed survival time in days.
| Model Type | Risk Group | # Subjects | Low-dim
|
High-dim
|
||
|---|---|---|---|---|---|---|
| # Events | MST | # Events | MST | |||
| Exponential | Low | 18,860 | 10 | 2.00 | 10 | 3.00 |
| Medium | 18,860 | 40 | 3.95 | 28 | 7.75 | |
| High | 19,433 | 775 | 3.67 | 787 | 3.52 | |
| Weibull | Low | 18,860 | 10 | 2.00 | 10 | 3.00 |
| Medium | 18,860 | 37 | 3.32 | 20 | 9.80 | |
| High | 19,433 | 778 | 3.70 | 795 | 3.51 | |
| Log-Logistic | Low | 18,860 | 10 | 2.00 | 4 | 4.50 |
| Medium | 18,860 | 32 | 4.13 | 23 | 3.65 | |
| High | 19,433 | 783 | 3.66 | 798 | 3.66 | |
| Log-Normal | Low | 18,860 | 10 | 2.00 | 12 | 3.00 |
| Medium | 18,860 | 32 | 4.10 | 25 | 2.96 | |
| High | 19,433 | 783 | 3.67 | 788 | 3.69 | |