| AIC | Akaike Information Criterion (AIC) |
| CI | Confidence Interval |
| CP | Cerebral Palsy |
| CPUP | Cerebral Palsy Surveillance Follow-Up Program |
| GMFCS | Gross Motor Function Classification System |
| GMFM-66 | Gross Motor Function Measure 66 |
| PEDI | Pediatric Evaluation of Disability Inventory |
| SD | Standard Deviation |