Background: Social trust, assessed by the trustworthiness of one another in a community, is known to have beneficial effects on health outcomes. However, the impact of social trust on metabolic syndrome (MetS) is unclear. Methods: The study subjects were extracted from the Korean National Health Insurance Service, and social trust was obtained from the Korean Community Health Survey (KCHS). Previously healthy participants were followed up from 1 January 2010 to 31 December 2011, and again from 1 January 2012 to 31 December 2013 for waist circumference, blood pressure, fasting blood glucose, triglycerides and high-density lipoprotein cholesterol (HDL-C). Multivariate logistic regression was used to calculate the adjusted odds ratios (aORs) with 95% confidence intervals (CIs) for newly developed MetS according to social trust quintiles. Stratified analyses were performed to determine the relationship between lifestyle behaviors and social trust. Results: Compared to the participants within the first quintile of social trust, those in the remaining quintiles had lower risks of developing MetS. The aOR with the 95% CI was 0.88 (0.79–0.98) in the 5th quintile group of social trust. Among the diagnostic criteria for MetS, waist circumference and HDL-C were statistically significant with aORs of 0.91 (0.84–0.99) and 0.88 (0.80–0.95) in the 5th quintile group. The stratified analyses showed protective effects of positive lifestyle behaviors. The aORs with 95% CIs were 0.85 (0.74–0.99) in never smokers, 0.82 (0.70–0.95) in non-drinkers and 0.87 (0.76–1.00) in the physically active in the highest level of social trust. Conclusions: Higher social trust was associated with a lower incidence of MetS. Therefore, building community with psychosocial support may be helpful in improving public health.

中文翻译：

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先前健康人群中社会信任与代谢综合征之间的关联-韩国的纵向队列研究。

背景：通过社区中彼此的信任度来评估社会信任，对健康结果具有有益的影响。但是，社会信任对代谢综合征（MetS）的影响尚不清楚。方法：研究对象选自韩国国民健康保险局，社会信任来自韩国社区健康调查（KCHS）。从2010年1月1日至2011年12月31日，以及从2012年1月1日至2013年12月31日，对先前健康的参与者进行随访，检查其腰围，血压，空腹血糖，甘油三酸酯和高密度脂蛋白胆固醇（HDL-C）。多元logistic回归用于根据社会信任度的五分位数计算新开发的MetS的校正比值比（aOR）和95％的置信区间（CI）。进行了分层分析，以确定生活方式行为和社会信任之间的关系。结果：与社会信任的前五分之一参与者相比，其余五分之一的参与者罹患MetS的风险更低。在第五个五分之一的社会信任人群中，具有95％CI的aOR为0.88（0.79–0.98）。在MetS的诊断标准中，第五个五分位数组的腰围和HDL-C具有统计学意义，aOR为0.91（0.84-0.99）和0.88（0.80-0.95）。分层分析显示了积极的生活方式行为的保护作用。在从未吸烟者中，具有95％CI的aOR为0.85（0.74–0.99），在非饮酒者中为0.82（0.70–0.95），在从事最高社会信任的体育锻炼者中为0.87（0.76–1.00）。结论：较高的社会信任度与较低的MetS发生率相关。因此，在社会心理支持下建立社区可能有助于改善公共卫生。