Table 1. Characteristics of the COR-Study participants at baseline.
| Baseline questionnaire(Q1) | all | women | men |
| Sex, n (%) | 2751 (100) | 1967 (71.5) | 783 (28.5) |
| Mean age (range), years | 65.9 (27–96) | 65.5 (29–96) | 66.9 (27–94) |
| RLS history | |||
| Duration of RLS symptoms, years mean | 22.1 | 22.7 | 20.7 |
| Time since diagnosis, years mean | 8.3 | 8.3 | 8.5 |
| RLS diagnosed by a neurologist,% | 60.1 | 59.7 | 61.1 |
| RLS treated by a neurologist,% | 71.0 | 71.4 | 70.0 |
| Medication | |||
| RLS medication use,% | 93.8 | 93.9 | 93.7 |
| Other medication use,% | 85.6 | 87.7 | 80.1 |
| No medication at all,% | 1.4 | 1.3 | 1.8 |
| Smoking habits | |||
| Current smokers,% | 9.6 | 10.0 | 8.6 |
| Former smokers,% | 30.3 | 24.1 | 45.9 |
| Alcohol consumption | |||
| Non drinker,% | 35.5 | 39.5 | 32.2 |
| Mean intake among drinkers, g/day | 16.3 | 13.0 | 22.3 |
| Body mass index ≥30 kg/ma,%1 | 18.8 | 19.9 | 16.3 |
| Comorbidities | |||
| History of hypertensionb,% | 46.8 | 46.4 | 47.7 |
| History of depressionb,% | 29.6 | 31.8 | 24.0 |
| History of cancerb,% | 12.5 | 12.1 | 13.5 |
| History of diabetesb,% | 11.0 | 10.1 | 13.0 |
| History of myocardial infarctionb,% | 5.1 | 3.3 | 9.4 |
| History of strokeb,% | 3.4 | 3.2 | 3.0 |
| Additional of comorbidities to RLSb | 2.6 | 2.6 | 2.4 |
| 1 additional comorbidityb,% | 18.3 | 17.6 | 19.8 |
| 2 additional comorbiditiesb,% | 24.3 | 24.9 | 22.7 |
| ≥5 additional comorbiditiesb,% | 14.2 | 14.8 | 12.8 |
a
based on self-reported weight and height.
b
self-reported physician diagnosis.