• Jakub Ruszkowski, Zbigniew Heleniak, Ewa Król, Agnieszka Tarasewicz, Jacek M Witkowski, and Alicja Dębska-Ślizień.
• Department of Pathophysiology, Faculty of Medicine, Medical University of Gdansk, Gdańsk, Poland; Department of Nephrology, Transplantology and Internal Medicine, Faculty of Medicine, Medical University of Gdansk, Gdańsk, Poland. jakub.ruszkowski@gumed.edu.pl
• Pol. Arch. Med. Wewn. 2021 Jun 29; 131 (6): 512-519.

AbstractINTRODUCTION Sleep disturbances, similarly to constipation‑related symptoms, are common problems in patients with chronic kidney disease (CKD) and are associated with worse health-related quality of life. OBJECTIVES The aim of the study was to investigate sleep problems in conservatively treated patients with CKD and to assess association between sleep quality and constipation in that population. PATIENTS AND METHODS In this cross‑sectional study, 100 conservatively treated outpatients with CKD filled questionnaires addressing sleep quality (The Medical Outcomes Study 12‑item Sleep Scale-Revised [MOS‑Sleep‑R]) and constipation‑related symptoms (PAC‑SYM, Rome III criteria). RESULTS The T scores of none of the assessed sleep domains differed across the estimated glomerular filtration rate terciles (all P >0.05). The scores from the PAC-SYM abdominal and stool subscales correlated with all assessed sleep quality domains. In both univariable and multivariable regression models adjusted for key clinical data, functional constipation, less than 7 bowel movements a week, abdominal discomfort, and pain as well as too small bowel movements were independently associated with increased prevalence ratio of decreased sleep quality. CONCLUSIONS In patients with nondialysis CKD, sleep disorders might have common etiological factors with constipation-related symptoms.

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