Independent variables | Hazard Ratio | 95% confidence intervals | P-value |
---|---|---|---|
Expanded Disability Status Scale (EDSS) score (each step) | 1.18 | 1.02–1.37 | 0.024 |
Relapses (each unit) | 1.61 | 1.10–2.35 | 0.014 |
Inserted variables that did not contribute to fit the model were as follows: sex, age, time since first symptom, multiple sclerosis severity score (MSSS), presence of gadolinium–enhancing lesions at brain MRI scan. |