The most commonly used data standards
| Category | Standard | Reference | Frequency of studies (%) |
| Classification | ICD-10 | 27 28 36–38 40 43 44 46 50 54 57 58 61 | 14 (35.89) |
| Diagnostic classification systems | ICF | 1 23 27 28 36–38 40 43 44 46 50 57 59 61 | 15 (38.46) |
| ICF-CY | 1 12 27 28 36–38 40 43 46 49 54 58 | 13 (33.33) | |
| MACS | 1 12 23 27 28 38 40 43 46 49 50 54 57 59 | 14 (35.89) | |
| GMFCS | 1 23 27 28 36–40 43 49 50 57–59 61 | 16 (41.02) |
GMFCS, Gross Motor Function Classification System; ICF, International Classification of Functioning, Disability, and Health.