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The reliability of the Czech version of the Richards-Campbell Sleep Questionnaire

Background: Sleep disorders are very frequent among all intensive care unit patients, and disturbed sleep quality has clear and straightforward negative consequences for patients’ recovery and level of distress. To promote sleep, nurses must have instruments for observing and evaluating patients’ sleep. Objective: The objective of the research was to determine the internal consistency of the Richards–Campbell Sleep Questionnaire (RCSQ) and to compare the selected relationships between the variables (gender, age, type of admission) in the Czech clinical environment of the intensive care unit. Design: Cross-sectional study. Methods: The RCSQ has been translated according to the translation and cultural adaptation manual. The quality of sleep was assessed using the Czech version of the RCSQ. The sample consisted of 105 patients hospitalised in an interdisciplinary intensive care unit. The quality of sleep was measured using a visual analogue scale (0–100). Results: The internal consistency (Cronbach’s α) of the Czech version of the RCSQ is 0.89. The average RCSQ score in the sample was 53.2 (SD 20.1). Return to sleep was the lowest rated item at 51 (SD 24.2), while sleep quality was the highest rated item at 55.6 (SD 26.4). There was no statistically significant relationship (p < 0.05) between sleep quality and selected variables: age (F = 0.1; p = 0.736), gender (F = 0; p = 0.929), type of admission (F = 1.8; p = 0.183). Conclusions: The study demonstrates that the Czech version of the RCSQ is rated as a reliable tool and can be used to subjectively assess sleep quality in critically ill patients. The association between sleep quality and selected variables has not been statistically proven and its perception is very individual.