Relationship between dialysis adequacy and sleep quality in haemodialysis patients

Aim and objectives. The aim of this study is to examine the relationship between dialysis adequacy and sleep quality in haemodialysis patients. Background. Sleep problems are common in haemodialysis patients. Dialysis adequacy is one of the factors associated with sleep quality. Studies evaluating the association between dialysis adequacy and sleep quality in haemodialysis patients present different results. Design. Descriptive and cross-sectional study. Methods. This study was performed with a total of 119 patients who had applied to dialysis centres for haemodialysis treatment between January and March 2014. The data collection form consists of socio-demographic and medical characteristics as well as laboratory parameters. A modified Post-Sleep Inventory was used to examine sleep quality in the research. Results. There were no statistically significant relationship between sleep quality and dialysis adequacy (p > 0.05). When the Post-Sleep Inventory scores were evaluated according to sleep quality, 63.0% of patients had poor sleep quality, and 37.0% had good sleep quality. Sleep quality was worse in unemployed patients (X-2 = 4.852; p = 0.025) and patients who smoked heavily (Z = 2.289; p = 0.022). Conclusions. In this study, there is no statistically significant relationship between dialysis adequacy and sleep quality. However, it was found that the majority of haemodialysis patients had poor sleep quality. Relevance to clinical practice. Even if the dialysis adequacy of patients is at the recommended level, their sleep qualities may be poor. Therefore, evaluations of the sleep quality of haemodialysis patients during the clinical practice must be taken into consideration.