Open AccessAssociations of sleep duration and prediabetes prevalence in a middle‐aged and elderly Chinese population with regard to age and hypertension: The China Health and Retirement Longitudinal Study baseline survey
Author(s) -
Yan Mingming,
Fu Zhen,
Qin Tingting,
Wu Nanjin,
Lv Yalan,
Wei Qinyun,
Jiang Hongwei,
Yin Ping
Publication year - 2018
Publication title -
journal of diabetes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.949
H-Index - 43
eISSN - 1753-0407
pISSN - 1753-0393
DOI - 10.1111/1753-0407.12662
Subject(s) - prediabetes , medicine , diabetes mellitus , confounding , poisson regression , longitudinal study , demography , national health and nutrition examination survey , gerontology , population , type 2 diabetes , endocrinology , environmental health , pathology , sociology
Background The aim of the present study was to examine the age‐specific associations between self‐reported sleep duration and prevalent prediabetes in middle‐aged and elderly Chinese with or without hypertension. Methods In all, 2985 Chinese adults aged ≥45 years from the China Health and Retirement Longitudinal Study (CHARLS) baseline survey were selected for analysis. Sleep duration was assessed by structured questionnaires and then categorized into three groups (≤6, 6–8, and >8 h). The prevalence of prediabetes was defined using fasting plasma glucose (100–125 mg/dL) and/or HbA1c (5.7%–6.4%) in conjunction with no previous diabetes diagnosis and no antidiabetic medication. Relationships between self‐reported sleep duration and prevalent prediabetes were examined according to age (45–60 years, middle‐aged; ≥60 years, elderly) and hypertension groups using Poisson regression models to estimate prevalence ratios (PRs) and 95% confidence intervals (CI). Results Compared with the reference group of 6–8 h sleep/night, short sleep (≤6 h/night) was associated with an increased risk of prediabetes in the whole sample (PR 1.09, 95% CI 1.01–1.17) after adjusting for confounders. This association was more pronounced in elderly participants without hypertension (PR 1.27, 95% CI 1.07–1.51). Conclusion This study suggests that participants with a short sleep period are at a moderately increased risk of prediabetes, particularly in elderly subjects without hypertension. Aging and hypertension may be important in the relationship between short sleep and impaired glucose metabolism.