Association between nighttime sleep duration, midday naps, and glycemic levels in Japanese patients with type 2 diabetes.

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
Read More Add to Saved list
  • 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:
      Glycated Hemoglobin*; Circadian Rhythm/*physiology ; Diabetes Mellitus, Type 2/*physiopathology ; Sleep/*physiology; Adult ; Diabetes Mellitus, Type 2/blood ; Female ; Humans ; Japan ; Male ; Middle Aged ; Self Report ; Sleep Wake Disorders ; Surveys and Questionnaires ; Time Factors
    • 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