Although there is increasing evidence that sleep disorders are common in individuals with chronic kidney disease (CKD), its link with CKD progression is unknown.
Researchers from University of Illinois at Chicago examined the sleep patterns of 432 adults with CKD.
Participants wore a wrist monitor for five to seven days to measure sleep duration and quality and their health was followed for a median of five years.
Participants slept an average of 6.5 hours per night, and during follow-up, 70 individuals developed kidney failure and 48 individuals died.
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There was also a significant association between sleep quality and kidney failure risk: each one per cent increase in sleep fragmentation was linked with a four per cent increase in the risk of developing kidney failure.
Also, patients who experienced daytime sleepiness were 10 per cent more likely to die during follow-up than those who were not sleepy during the day.
"Short sleep and fragmented sleep are significant, yet unappreciated risk factors for CKD progression," said Ana C Ricardo, from University of Illinois at Chicago.
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