Table 4.
Sleep disorders measured on self-report questionnaires.
| Patients | Controls | p | Effect size | |||
|---|---|---|---|---|---|---|
| Mean | (SD) | Mean | (SD) | |||
| RBDSQ | 6.85 | (2.00) | 2.25 | (2.00) | .000* | 2.3 |
| DDNSI | 18.45 | (8.09) | 0.35 | (1.57) | .000* | 3.75 |
| |
n |
(%) |
n |
(%) |
|
|
| Weekly nightmares | 15 | (75) | 1 | (16) | .000* | |
| Severe intensity of nightmares | 14 | (70) | 0 | (0) | .000* | |
Note: RBDSQ, REM Sleep Behaviour Disorder Screening Questionnaire; DDNSI, Disturbing Dream and Nightmare Severity Index: participants experiencing nightmares or disturbing dreams weekly or monthly.
*Significant group difference, p < .05.