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International Journal of Nephrology
Volume 2017 (2017), Article ID 2473217, 6 pages
Research Article

Sleep Parameters in Short Daily versus Conventional Dialysis: An Actigraphic Study

1Universidade de Brasília (UnB), Brasília, DF, Brazil
2Centro Brasiliense de Nefrologia, Brasília, DF, Brazil

Correspondence should be addressed to Einstein Francisco Camargos; moc.liamg@cfnietsnie

Received 1 May 2017; Accepted 17 July 2017; Published 17 August 2017

Academic Editor: Jochen Reiser

Copyright © 2017 Ludimila D’Avila e Silva Allemand et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Previous studies have observed worse sleep quality in patients undergoing conventional dialysis as compared to daily dialysis. Our aim was to compare the sleep parameters of patients undergoing daily or conventional dialysis using an objective measure (actigraphy). This cross-sectional study was performed in three dialysis centers, including a convenience sample (nonprobability sampling) of 73 patients (36 patients on daily hemodialysis and 37 patients on conventional hemodialysis). The following parameters were evaluated: nocturnal total sleep time (NTST), expressed in minutes; wake time after sleep onset (WASO), expressed in minutes; number of nighttime awakenings; daytime total sleep time (DTST), expressed in minutes; number of daytime naps; and nighttime percentage of sleep (% sleep). The Mini-Mental State Examination and the Beck Depression Inventory were also administered. The mean age was 53.4  ±  17.0 years. After adjustment of confounding factors using multiple linear regression analysis, no difference in actigraphy parameters was detected between the groups: NTST (), WASO (), % sleep (), awakenings (), naps (), and DTST (). Different from previous studies employing qualitative analysis, the present assessment did not observe an influence of hemodialysis modality on objective sleep parameters in chronic renal patients.