Table 3.
Descriptive statistical indices and Spearman’s correlation coefficients of age, EDSS, BMI, sleep complaints (ISI), daytime sleepiness (ESS), symptoms of restless legs syndrome (RLS), and sleep-disordered breathing (SDB), depressive symptoms (BDI), fatigue, and self-reported physical activity levels.
| Dimensions | Statistics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age | EDSS | BMI | ISI | ESS | RLS | SDB | BDI | Fatigue | PA Moderate | PA Vigorous | M (SD) | |
| Age (years) | - | 0.23 | 0.18 | 0.14 | 0.20 | −0.09 | 0.27 | 0.09 | −0.16 | −0.06 | 0.27 | 50.25 (9.59) |
| EDSS | - | −0.34 | 0.50 * | 0.54 * | 0.42 | 0.44 | 0.22 | 0.41 | −0.06 | −0.61 * | 5.28 (1.19) | |
| BMI | - | 0.18 | 0.02 | 0.18 | 0.83 ** | 0.35 | 0.08 | 0.26 | −0.10 | 29.59 (5.40) | ||
| ISI | - | 0.69 ** | −0.38 | 0.16 | 0.38 | 0.36 | −0.46 | −0.66 * | 15.12 (6.48) | |||
| ESS | - | −0.27 | 0.05 | 0.71 * | 0.45 | −0.03 | 0.49 | 8.37 (5.19) | ||||
| RLS | - | 0.28 | 0.15 | 0.20 | −0.47 | −0.43 | 15.81 (1.32) | |||||
| SDB | - | 0.37 | 0.02 | 0.13 | −0.14 | 1.81 (0.75) | ||||||
| BDI | 0.53 * | −0.08 | −0.02 | 9.44 (4.89) | ||||||||
| Fatigue | - | −0.30 | 0.09 | 48.63 (16.26) | ||||||||
| PA moderate (min) | - | 0.35 | 328.25 (369.40) | |||||||||
| PA vigorous (min) | - | 105.94 (106.15) | ||||||||||
Notes: EDSS = Expanded Disability Status Scale; BMI = Body Mass Index; BDI = Beck Depression Inventory Fast Screen; ISI = Insomnia Severity Index; ESS = Epworth Sleepiness Scale; RLS = Restless Legs Syndrome; SDB = Sleep-disordered breathing; PA = physical activity. * = p < 0.05 ** = p < 0.01.