Saleh Donna, Janssen Ian
Department of Public Health Sciences, Queen's University, Kingston, ON, Canada.
BMC Public Health. 2014 Jun 30;14:666. doi: 10.1186/1471-2458-14-666.
The study objectives were to examine whether: 1) sedentary time is associated with sleep duration, 2) sedentary time predicts the metabolic syndrome (MetS) independent of sleep duration and vice versa, and 3) sedentary time and sleep duration have an interactive effect on the MetS.
This cross-sectional study is based on the 2003-2006 National Health and Nutrition Examination Survey. A sample of 1371 adults (aged ≥20 years) were studied. Average daily sedentary time and sleep duration were determined via 7-day accelerometry. Screen time was determined via questionnaire. The MetS was determined using standard criteria. Analysis of variance was used to examine relationships among sedentary time and screen time with sleep duration. Logistic regression was used to examine associations between sedentary time, screen time, and sleep duration with the MetS after controlling for several confounders.
Sedentary time and screen time did not vary across sleep duration quartiles. Participants in the highest quartile of sedentary time were more likely to have the MetS than participants in the lowest quartile (odds ratio = 1.60, 95% CI:1.05-2.45). The odds of the MetS was higher in participants in the highest screen time tertile as compared to the lowest tertile (odds ratio = 1.67, 95% confidence interval:1.13-2.48). Sleep duration was not independently related to the MetS. There were no significant sedentary time X sleep duration interactions on the MetS.
Highly sedentary individuals and individuals with a high screen time are more likely to have the MetS.
本研究的目的是检验以下内容：1）久坐时间是否与睡眠时间相关；2）久坐时间能否独立于睡眠时间预测代谢综合征（MetS），反之亦然；3）久坐时间和睡眠时间对代谢综合征是否有交互作用。
这项横断面研究基于2003 - 2006年美国国家健康和营养检查调查。对1371名成年人（年龄≥20岁）进行了研究。通过7天的加速度计测量确定平均每日久坐时间和睡眠时间。通过问卷调查确定屏幕使用时间。使用标准标准确定代谢综合征。采用方差分析来检验久坐时间和屏幕使用时间与睡眠时间之间的关系。在控制了几个混杂因素后，使用逻辑回归来检验久坐时间、屏幕使用时间和睡眠时间与代谢综合征之间的关联。
久坐时间和屏幕使用时间在睡眠时间四分位数之间没有差异。久坐时间处于最高四分位数的参与者比处于最低四分位数的参与者更有可能患代谢综合征（优势比 = 1.60，95%置信区间：1.05 - 2.45）。与最低三分位数相比，屏幕使用时间处于最高三分位数的参与者患代谢综合征的几率更高（优势比 = 1.67，95%置信区间：1.13 - 2.48）。睡眠时间与代谢综合征没有独立关联。在代谢综合征方面，久坐时间与睡眠时间没有显著的交互作用。
久坐时间长的个体和屏幕使用时间长的个体更有可能患代谢综合征。
