Table 5.
Characteristics of Patients with MS and RLS and Control Subjects with RLS
| A. Continuous variables | MS/RLS+ | CS/RLS+ | Student t-test | P ≤ |
|---|---|---|---|---|
| Mean ± SD | Mean ± SD | t value | ||
| Age at visit, y | 45.6 ± 10.60 | 46.0 ± 10.12 | −0.18 | NS |
| Age at RLS onset, y | 39.0 ± 11.02 | 37.6 ± 12.32 | 0.61 | NS |
| Duration of RLS symptoms, min | 38.8 ± 40.86 | 35.4 ± 40.67 | 0.41 | NS |
| IRLSRS, score | 17.5 ± 5.70 | 14.0 ± 4.71 | 2.97 | 0.003 |
| Sleep latency, min | 24.7 ± 30.75 | 17.4 ± 18.88 | 1.18 | NS |
| Total sleep time, min | 394.5 ± 86.61 | 342.5 ± 80.71 | 2.94 | 0.004 |
| B. Frequencies, % | MS/RLS+ | CS/RLS+ | χ2 | P ≤ |
|---|---|---|---|---|
| RLS family history | 13.8 | 22.2 | 2.17 | NS |
| Use of medication for sleep | 22.6 | 14.1 | 2.69 | NS |
MS refers to multiple sclerosis; RLS, restless legs syndrome; CS, control subjects; IRLSSG, International RLS Study Group.