Table 3 Community-based prevalence studies of RBD
From: REM sleep behavior disorder was associated with Parkinson’s disease: a community-based study
References | Year | Country | Subjects | Diagnostic methods | Prevalence of RBD | 95 % CI |
|---|---|---|---|---|---|---|
Chiu et al [10] | 2000 | Hong Kong | A representative sample of 1034 elderly, aged 70 years or above | Screening question, and those who had positive response underwent sleep studies | 0.38 % | 0.01 % to 0.76 % |
Ohayon et al [9] | 1994–2000 | Finland, Germany, Italy, Portugal, Spain and the United Kingdom | A random stratified sample of 19,961 participants from the general population, 15 years and older | telephone interview | 1.7 % | 1.5 % to 1.8 % |
Kang et al [11] | 2010 | Korea | Among 696 random sampling subjects aged 60 years or older, 348 subjects underwent vPSG | vPSG | 2.01 % | 0.54 % to 3.49 % |
Mahlknecht et al [17] | 2015 | Caucasian population (Bruneck Study Cohort) | 456 participants without Parkinson’s disease 456 participants without Parkinson’s disease 456 participants without Parkinson’s disease, 456 participants without PD aged 60 years or older | RBDSQ RBD-I | 4.6 % 7.7 % | 3.0 % to 7.0 % 5.6 %–10.5 % |
Our study | 2013 | China | A door-to-door survey including 31202 residents | RBD1Q-C | 4.9 % | 4.6 % to 5.1 % |