Department of Health Disparities Research, University of Texas MD Anderson Cancer Center, Houston, TX.
Department of Health Disparities Research, University of Texas MD Anderson Cancer Center, Houston, TX.
Sleep Health. 2019 Apr;5(2):193-200. doi: 10.1016/j.sleh.2018.12.005. Epub 2019 Jan 17.
To examine the role of health behaviors (eg, physical activity, sedentary behaviors, and diet) in the relationship between sleep (ie, duration and quality) and BMI among African American adults.
A cross-sectional self-report questionnaire included questions related to health and health-related behaviors.
This study was based on data from the CHURCH study, which aimed to address cancer health disparities among church-going African Americans in Houston, TX.
African American adults were recruited from three large community churches. The sample included a total of 1837 participants (75.2% female; mean age 48.2 ± 13.7y; mean BMI 32.0 ± 7.5 kg/m).
Linear regression models and path analyses controlling for demographic characteristics and depression estimated the associations between sleep and BMI as well as the mediating roles of health behaviors.
The average self-reported sleep duration was 6.2 ± 1.5 h/night with 61%, 35.8%, and 1.6% reporting short (≤6 h/night), normal (7-9 h/night), and long sleep (≥10 h/night), respectively. Short sleep was related to greater BMI (b = 1.37, SE = 0.38, P = .01), and the relationship was mediated by sedentary behaviors (est. = 0.08, SE = 0.04, 95% CI: 0.02, 0.17).
Short sleep and poor quality sleep was related to poor diet and physical activity-related health behaviors, and BMI. The link between sleep and obesity is, in part, due to energy imbalance from increased sedentary behavior.
探讨健康行为（如体力活动、久坐行为和饮食）在非裔美国成年人睡眠（即睡眠时间和质量）与 BMI 之间关系中的作用。
横断面自我报告问卷调查包括与健康和健康相关行为相关的问题。
本研究基于 CHURCH 研究的数据，该研究旨在解决德克萨斯州休斯顿教堂参加的非裔美国人的癌症健康差异。
从三所大型社区教堂招募非裔美国成年人。该样本共包括 1837 名参与者（75.2%为女性；平均年龄 48.2±13.7 岁；平均 BMI 32.0±7.5kg/m²）。
线性回归模型和路径分析控制了人口统计学特征和抑郁，估计了睡眠与 BMI 之间的关联以及健康行为的中介作用。
平均自我报告的睡眠时间为 6.2±1.5 小时/夜，分别有 61%、35.8%和 1.6%的人报告短（≤6 小时/夜）、正常（7-9 小时/夜）和长（≥10 小时/夜）睡眠。短睡眠与更大的 BMI 相关（b=1.37，SE=0.38，P=0.01），且该关系通过久坐行为进行中介（est.=0.08，SE=0.04，95%CI：0.02，0.17）。
短睡眠和睡眠质量差与不良饮食和与体力活动相关的健康行为以及 BMI 有关。睡眠与肥胖之间的联系部分归因于久坐行为增加导致的能量失衡。
