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Association between nighttime sleep duration, midday naps, and glycemic levels in Japanese patients with type 2 diabetes.
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- Author(s): Makino S;Makino S; Hirose S; Hirose S; Kakutani M; Kakutani M; Fujiwara M; Fujiwara M; Nishiyama M; Nishiyama M; Terada Y; Terada Y; Ninomiya H; Ninomiya H
- Source:
Sleep medicine [Sleep Med] 2018 Apr; Vol. 44, pp. 4-11. Date of Electronic Publication: 2017 Nov 21.- Publication Type:
Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 100898759 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-5506 (Electronic) Linking ISSN: 13899457 NLM ISO Abbreviation: Sleep Med Subsets: MEDLINE
- Publication Information: Original Publication: Amsterdam ; New York : Elsevier Science, c2000-
- Subject Terms:
- Abstract: Objectives: To clarify the relationship between nighttime sleep duration, midday naps, and glycemic control in Japanese patients diagnosed with type 2 diabetes (n = 355) or impaired glucose tolerance (n = 43).
Methods: A total of 398 patients completed a self-administered questionnaire on sleep duration/quality and were divided into five groups according to their self-reported nighttime sleep duration: <5 h, 5-6 h, 6-7 h, 7-8 h, and >8 h. Each group was further divided into two subgroups each according to the presence or absence of midday naps. Poor glycemic control was defined as HbA1c ≥ 7.0%.
Results: Short nighttime sleep (<5 h), poor sleep induction, daytime sleepiness, and low sleep satisfaction were associated with high HbA1c levels. HbA1c was higher in the short nighttime sleep/no nap group than in non-nappers with different nighttime sleep duration, whereas the short nighttime sleep/nap group showed similar HbA1c levels to the other nap subgroups. In multivariate logistic regression models, after adjusting for a number of potential confounders, short (<5 h) nighttime sleep without nap was significantly associated with poor glycemic control compared with 6-7 h nighttime sleep without nap (OR [95% CI]: 7.14 [2.20-23.20]). However, taking naps reduced this risk for poor glycemic control in short sleepers. Other risk factors for poor glycemic control were low sleep satisfaction (1.73 [1.10-2.70]) and poor sleep induction (1.69 [1.14-2.50]).
Conclusions: Poor sleep quality and quantity could aggravate glycemic control in type 2 diabetes. Midday naps could mitigate the deleterious effects of short nighttime sleep on glycemic control.
Clinical Trials Registration: UMIN 000017887.
(Copyright © 2017 Elsevier B.V. All rights reserved.) - Contributed Indexing: Keywords: Glycemic control; Midday naps; Nighttime sleep duration; Type 2 diabetes
- Molecular Sequence: UMIN-CTR UMIN000017887
- Accession Number: 0 (Glycated Hemoglobin A)
- Publication Date: Date Created: 20180314 Date Completed: 20190926 Latest Revision: 20221207
- Publication Date: 20231215
- Accession Number: 10.1016/j.sleep.2017.11.1124
- Accession Number: 29530368
- Source:
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