Multivariate linear regression analysis of factors of comorbidity index in participants with faster Timed Up and Go performance
| Variables | Coefficient (β) | SE | P value |
| Age (years) | 0.067 | 0.021 | 0.004 |
| Mini-Mental State Examination score | −0.072 | 0.031 | 0.021 |
| Duration of hospitalisation (days) | 0.055 | 0.027 | 0.045 |
| Timed Up and Go test time (s) | 0.220 | 0.051 | 0.001 |
| Frailty index | 0.680 | 0.190 | 0.003 |