Variable Risk Rate CI (95%) P value Age ≥ 60 years 3.02 1.0-5.0 0.003 Thoracic neurological level 2.13 1.27-22 0.030 Limited motion range in  Lower Limbs 2.52 1.43-5.5 0.010

Table 4: Multivariate Analysis of the total gait disability time for 206 patients with HAM/TSP.