- GMFCS I-III, MACS I-II, House 7–8, Zancolli 1, no thumb-in-palm, no bimanual ability and “green” values for range of motion were used as reference categories. Statistically significant (p < 0.05) Hazard ratios (HR) of 1.1–2 indicating an increased risk of 10–100 % are marked with yellow, HRs of >2 (more than doubled risk) are marked with red and HRs <1 (meaning a reduced risk is indicated with green)