The prevalence of REM sleep behaviour disorder (RBD) in patients with Parkinson's disease (PD)
| Study | Number participants with PD | Mean disease duration in years (SD) | Method of RBD diagnosis | Percentage of patents with concomitant RBD (95% CI) |
|---|---|---|---|---|
| Our study | 475 | 1.5 (1) | Questionnaire | 47.2 (42.7 to 51.9) |
| De Cock, 200722 | 100 | 7 (4) | PSG | 41.0 (31.4 to 50.6) |
| Postuma, 200828 | 36 | 7.7 (6.2) | PSG | 58.3 (42.2 to 74.4) |
| Vibha, 201123 | 134 | 5.5 (4.1) | Questionnaire | 19.4 (12.7 to 26.4) |
| Gjerstad, 200825 | 231 | 9.0 (5.6) | Questionnaire | 14.7 (10.1 to 19.3) |
| Scaglione, 200527 | 195 | 8.1 (5.1) | Questionnaire | 32.8 (26.2 to 39.4) |
| Lavault, 20108 | 61 | 6.9 (4.7) | Questionnaire | 63.4 (51.3 to 75.5) |
| Lee, 201029 | 447 | 6.1 (4.6) | Questionnaire | 36.7 (32.2 to 41.7) |
| Pacchetti, 200530 | 289 | 8.4 (5.4) | Questionnaire | 26.6 (21.5 to 31.7) |
| Yoritaka, 200931 | 150 | 6.4 (4.6) | Questionnaire | 54.0 (46.0 to 62.0) |
| Chahine, 201314 | 75 | 4.0 (4.0) | PSG | 41.3 (30.2 to 52.4) |
| Bugalho, 201032 | 75 | 2.8 (1.4) | Questionnaire | 54.6 (43.3 to 65.9) |
| Poryazova, 201333 | 417 | 11 (7) | Questionnaire | 41.2 (36.5 to 45.9) |
PSG, polysomnography.