ASEAN Institute for Health Development, Mahidol University, Salaya, Phutthamonthon, Nakhonpathom 73170, Thailand.
Deputy Vice Chancellor Research and Innovation Office, North West University, Potchefstroom 2531, South Africa.
Int J Environ Res Public Health. 2019 Apr 19;16(8):1413. doi: 10.3390/ijerph16081413.
The study aimed to investigate the association between sedentary behavior and depression among rural South Africans. Data were analyzed from the cross-sectional baseline survey of the "Health and Aging in Africa: A Longitudinal Study of an INDEPTH community in South Africa (HAALSI)". Participants responded to various measures, including sociodemographic information, health status, anthropometric measures, and sedentary behavior. The sample included 4782 persons (40 years and above). Overall, participants engaged in <4 h (55.9%), 4-<8 h (34.1%), 8-<11 h (6.4%), or 11 or more h a day (3.5%) of sedentary behavior, and 17.0% screened positive for depression. In multivariable logistic regression, which was adjusted for sociodemographic variables (Model 1) (Odds Ratio, or OR: 2.45, Confidence Interval, or CI: 1.74, 3.46) and adjusted for sociodemographic and health variables, including physical activity (Model 2) (OR: 3.00, CI: 2.00, 4.51), high sedentary time (≥11 h) was independently associated with depression. In combined analysis, compared to persons with low or moderate sedentary behavior (<8 h) and moderate or high physical activity, persons with high sedentary behavior (≥8 h) and low physical activity were more likely to have depression in Model 1 (OR: 1.60, CI: 1.65, 3.13) and Model 2 (OR: 1.60, CI: 1.05, 2.44). Findings support that sedentary behavior and combined sedentary behavior and low physical activity may be a modifiable target factor for strategies to reduce depression symptoms in this rural population in South Africa.
本研究旨在探讨南非农村居民久坐行为与抑郁之间的关联。数据来自“非洲健康与老龄化：南非一个 INDEPTH 社区的纵向研究（HAALSI）”的横断面基线调查。参与者回答了各种措施，包括社会人口统计学信息、健康状况、人体测量指标和久坐行为。样本包括 4782 人（40 岁及以上）。总体而言，参与者每天有<4 小时（55.9%）、4-<8 小时（34.1%）、8-<11 小时（6.4%）或 11 小时或更长时间（3.5%）的久坐行为，17.0%的人筛查出患有抑郁症。在多变量逻辑回归中，根据社会人口统计学变量进行调整（模型 1）（优势比，或 OR：2.45，置信区间，或 CI：1.74，3.46）和根据社会人口统计学和健康变量进行调整，包括身体活动（模型 2）（OR：3.00，CI：2.00，4.51），高久坐时间（≥11 小时）与抑郁独立相关。在综合分析中，与低或中度久坐行为（<8 小时）和中或高度身体活动的人相比，高久坐行为（≥8 小时）和低身体活动的人在模型 1（OR：1.60，CI：1.65，3.13）和模型 2（OR：1.60，CI：1.05，2.44）中更有可能患有抑郁症。研究结果支持久坐行为和久坐行为与低身体活动相结合可能是减少南非农村人口抑郁症状的可改变目标因素。
