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- Title
Day Napping and Short Night Sleeping Are Associated With Higher Risk of Diabetes in Older Adults.
- Authors
Qun Xu; Song, Yiqing; Hollenbeck, Albert; Blair, Aaron; Schatzkin, Arthur; Chen, Honglei
- Abstract
OBJECTIVE -- To examine whether day napping or short night sleeping is associated with higher risk of diabetes. RESEARCH DESIGN AND METHODS -- This was a prospective study of hours of day napping and night sleeping assessed in 1996-1997 in relation to diabetes diagnosed between 2000 and 2006 (n = 10,143) among 174,542 participants in the National Institutes of Health (NIH)-AARP Diet and Health Study. Odds ratios (ORs) and 95% CI were derived from multivariate logistic regression models. RESULTS-- Longer day napping was associated with a higher risk of diabetes. After adjustment for potential confounders, ORs were 1.23 (95% CI 1.18-1.29) for those reporting < 1 h and 1.55 (95% CI 1.45-1.66) for those reporting ≥ 1 h of napping compared with individuals who did not nap (P[sub trena] < 0.0001). For night sleeping, with 7-8 h as the referent, the OR was 1.46 (95% CI 1.31-1.63) for <5 h, 1.11 (1.06-1.16) for 5-6 h, and 1.11 (0.99-1.24) for ≥ 9 h. In both analyses, additional adjustment for BMI only modestly attenuated the associations. Further analysis showed a statistically significant interaction between hours of napping and sleeping on diabetes (P[sub interaction] < 0.0001). Among participants with no napping, only short night sleeping was associated with higher occurrence of diabetes, whereas among those with ≥ 1 h of napping, both long and short sleeping was associated with higher risk. CONCLUSIONS -- Day napping and short night sleeping are associated with higher risk of diabetes. The association between sleep duration and diabetes may be modified by napping habit.
- Publication
Diabetes Care, 2010, Vol 33, Issue 1, p78
- ISSN
0149-5992
- Publication type
Academic Journal
- DOI
10.2337/dc09-1143