Sonja Mensch

84 Chapter 4 Table 3. Characteristics of the study population N = 60 % Gender Male Female 31 29 52 48 Age in years 1-6 6-12 12-18 20 28 12 33 47 20 Cognitive development level in months 0-6 6-12 12-18 >18 Not scored 27 12 5 2 14 45 20 8 3 23 GMFCS* 1 level IV V Not scored 22 31 7 37 52 11 Diagnosis Cerebral Palsy Spastic CP Ataxic CP Dyskinetic CP Syndromes/ gene mutations Acquired brain injury Metabolic disease Unknown 25 21 1 3 18 1 2 14 42 84 4 12 30 1.7 3 23 Comorbidity Epilepsy PEG* 2 tube Scoliosis Visual impairment Respiratory problem Other* 3 Secondary problem/ contractures 39 22 24 44 17 17 29 65 37 40 73 28 28 48 Devices* 4 Wheelchair Standing device Walking aid (Semi) Orthopaedic shoes Orthotics Lying device 57 42 24 24 32 16 95 70 40 40 53 27 * 1 GMFCS: Gross Motor Function Classification System (Palisano et al., 1997) * 2 PEG tube: percutaneous endoscopic gastrostomy tube * 3 Other: additionally noted comorbid conditions such as heart disease, hearing disorders, diabetes mellitus, gastro- oesophageal reflux disease * 4 Device: Assistive devices and aids for personal mobility (World Health Organization, 2008) Test-retest reliability During the interval of three months, six children were lost to follow-up: one died, two were severely ill, two had been transferred to other day-care centers and one moved home. In addition, four children were lost to follow-up for test-retest analyses due