GMFCS | Total Stress Index by PSI/SF | p-value | |||
Low/Standard | High | ||||
<94 | ≥94 | ||||
N | % | N | % | ||
Mild impairment | 10 | 62.5 | 6 | 37.5 | 0.157 |
Moderate impairment | 8 | 57.1 | 6 | 42.9 | 0.45 |
Severe impairment | 40 | 64.5 | 22 | 35.5 | 0.001 |