Table 1.
Distribution of hemodialysis patients according to clinical-demographic characteristics, segregated according to the diagnosis of restless legs syndrome (RLS)¢ (N = 241).
| Characteristics | Population | With RLS | Without RLS | p ∂ |
|---|---|---|---|---|
| 100% (241) | 17.4% (42) | 82.6 (199) | - | |
| Age (average), years | 48.9 ± 15.7 | 48.1 ± 13.7 | 49.1 ± 16.1 | 0.71 |
| Male, % | 58.5 | 50.0 | 60.3 | 0.22 |
| Arterial hypertension, % | 83.1 | 78.6 | 84.0 | 0.40 |
| Diabetes mellitus, % | 26.6 | 19.0 | 28.1 | 0.22 |
| Cardiopathy, % | 23.2 | 30.9 | 21.6 | 0.19 |
| Peripheral vasculopathy, % | 14.9 | 19.0 | 14.1 | 0.41 |
| Having a partner, % | 56.4 | 69.0 | 53.8 | 0.07 |
| Years of study, <4, % | 51.0 | 52.4 | 50.7 | 0.84 |
| Regular occupation, % | 8.3 | 9.5 | 8.0 | 0.75 |
| Time on dialysis, >1 year, % | 80.1 | 80.9 | 79.9 | 0.87 |
| Hemoglobin (g/dL)ø | 10.8 | 10.7 | 10.9 | 0.70 |
| Parathormone (pg/mL)ø | 580.7 | 621.6 | 496.1 | 0.78 |
| Phosphorus (mq/dL)ø | 4.8 | 4.9 | 4.7 | 0.13 |
| Albumin (g/dL)ø | 3.8 | 3.8 | 3.8 | 0.54 |
| Ferritin (ng/mL)ø | 670.3 | 671.3 | 625.5 | 0.94 |
¢Based on the criteria developed by the International Study Group on Restless Legs Syndrome (18). øMedian of values obtained from blood samples. Significance calculated from mean values. ∂Significance level p < 0.05.