Table 1.
Baseline demographics and clinical parameters
| RLS | JH Controls | NIA Controls | P value (RLS vs. Controls) | |
|---|---|---|---|---|
| Number of participants | 20 | 18 | 10 | – |
| International Restless Legs Scale (RLS severity) | 24.7 ±6.9 | – | – | – |
| Age (years) | 58 ± 2.1 | 57 ± 2.1 | 60 ± 2.3 | .534 |
| Sex | 13F/7M | 12F/6M | 5F/5M | .768 |
| Serum ferritin (ng/mL) | 43.2 ± 6 | 38.9 ± 6 | 63.8 ± 18 | .396 |
| Serum iron (μg/dL) | 87.3 ± 7.5 | 95.6 ± 7.5 | – | .439 |
| Total Iron Binding Capacity (TIBC) (μg/dL) | 43.2 ± 6 | 38.9 ± 6 | – | .543 |
| % saturation | 87.3±2.3 | 95.6 ± 2.3 | – | .444 |
| Hemoglobin (g/dL) | 13.6 ± .24 | 13.5 ± .24 | – | .618 |
| RDW (d/dL) | 13.39 ± .13 | 13.4 ± .13 | – | .814 |
| MCHC (g/dL) | 33.6 ± .19 | 33.8 ± .19 | – | .316 |
Variables except for sex are presented as mean ± standard deviation. P values for differences were calculated using unpaired t-test for continuous variables and Fisher’s exact test for sex (M = males; F = females).