Sleep duration and chronic kidney disease: analysis of the national health interview survey.
BACKGROUND
Patients with chronic kidney disease (CKD) have a high prevalence of sleep disorders. The association between sleep duration and self-reported CKD was examined in a population of Americans who participated in a national survey over a 3-year period.


METHODS
A cross-sectional study using survey data from the National Health Interview Survey (NHIS) from the year 2004-2006 was carried out. A retrospective examination of data from a community-based survey of 128,486 noninstitutionalized US civilian residents over the age of 18 years was conducted. Self-reported CKD was defined as having 'weak or failing kidneys'. The sleep duration was defined by a self-reported estimate of habitual sleep duration.


RESULTS
The prevalence of participants self-reporting kidney disease was higher in those with short (≤6 h per night) and long (≥8 h per night) sleep durations when compared to those sleeping 7 h per night. Self-reported information about sleep, demographic information, and information on comorbidities were assessed using standardized validated questionnaires which reported no kidney disease. A multivariate logistic regression analysis showed increased odds of self-reported kidney disease in study participants with both short and long sleep durations compared to healthy sleepers (sleeping >7-8 h per night). Observational data do not permit examination of causality, although possible confounders in observations of interest can be adjusted.


CONCLUSIONS
Among Americans surveyed in the NHIS (2004-2006), those with short or long sleep duration had higher odds of reporting that they had CKD.
Center for Healthful Behavior Change, NYU School of Medicine, New York, N.Y., ; Department of Obstetrics and Gynecology, Lutheran Medical Center, Brooklyn, N.Y., USA.
Idoko
I
Salifu
Department of Medicine, SUNY Downstate Medical Center, Brooklyn, N.Y., USA.
Fasika
F
Tedla
Department of Medicine, SUNY Downstate Medical Center, Brooklyn, N.Y., USA.
Abhishek
A
Pandey
Department of Medicine, SUNY Downstate Medical Center, Brooklyn, N.Y., USA.
Isabelle
I
Ayoub
Department of Medicine, SUNY Downstate Medical Center, Brooklyn, N.Y., USA.
Clinton
C
Brown
Department of Endocrinology, SUNY Downstate Medical Center, Brooklyn, N.Y., USA.
Samy I
SI
McFarlane
Center for Healthful Behavior Change, NYU School of Medicine, New York, N.Y..
Girardin
G
Jean-Louis
Chronic kidney disease; Race/ethnicity; Sleep duration