Table 2. Physical performance, depression, daytime sleepiness and sleep quality data.
| Variables | Patients Pool Data | Non RLS | RLS | P values |
| Physical Performance Tests | ||||
| STS- 5 (sec) | 10.1±2.8 | 10.4±3.3 | 9.7±1.9 | 0.330 |
| STS-60 (rep) | 27.8±8.4 | 28.8±8.9 | 26.6±7.6 | 0.339 |
| Normal Walk (sec) | 5.9±1.4 | 5.9±1.5 | 5.8±1.2 | 0.572 |
| Fast Walk (sec) | 4.1±1.0 | 4.1±1.1 | 4.1±0.9 | 0.687 |
| NSRI test (sec) | 84.3±36.8 | 85.6±41.4 | 82.7±30.5 | 0.503 |
| Questionnaires | ||||
| Sleep Diary | 7.2±4.8 | 5.7±4.3 | 9.2±4.7 | 0.005 |
| Epworth Sleepiness Scale | 6.1±4.1 | 5.3±3.7 | 7.1±4.4 | 0.060 |
| Zung Depression Scale | 41.0±9.6 | 38.2±8.3 | 44.4±10.1 | 0.011 |
All data are mean ± SD. P values are adjusted for yrs in dialysis. Abbreviations: STS-5, sit-to- stand test 5-repetitions; STS-60, sit-to- stand test 60 seconds; NSRI, North Staffordshire royal infirmary test.