Division of Chronic Disease and Injury Prevention, Los Angeles County Department of Public Health, Los Angeles, California.
Department of Epidemiology, University of California, Los Angeles, Fielding School of Public Health, Los Angeles, California.
Prev Chronic Dis. 2017 Nov 22;14:E120. doi: 10.5888/pcd14.170117.
In 2010, the Los Angeles County Department of Public Health launched a local sodium-reduction initiative to address the rising prevalence of high blood pressure (hypertension) and related cardiovascular conditions in the population. To inform this effort, we evaluated self-reported knowledge and health behaviors related to sodium intake among Los Angeles County residents.
We administered 3 cross-sectional Internet panel surveys on knowledge about dietary sodium to a sample of Los Angeles County adults, at intervals from December 2014 through August 2016. Multinomial and logistic regression models were constructed to describe associations between sodium knowledge and self-reported health behaviors.
A total of 7,067 panel subjects clicked into the online survey, and 2,862 completed the survey (adjusted response rate = 40.5%). Only 102 respondents (3.6%) were able to accurately report the recommended milligrams of sodium that an average adult should consume daily (1,500 mg to 2300 mg). Knowing about daily sodium intake recommendations was associated with increased odds of using Nutrition Facts labels to make food purchase decisions (adjusted odds ratio [AOR], 3.48; 95% confidence interval [CI], 1.59-7.60) and with decreased odds of taking measures to prevent hypertension (AOR, 0.38; 95% CI, 0.19-0.74).
Los Angeles County residents had a limited knowledge of recommended daily sodium intake. Efforts to increase understanding of these recommendations may encourage wider engagement in healthy behaviors. Health agencies should integrate sodium reduction messages in their diet and nutrition educational efforts.
2010 年，洛杉矶县公共卫生部发起了一项地方减钠倡议，以解决该人群中高血压（hypertension）患病率上升和相关心血管疾病问题。为了为这一努力提供信息，我们评估了洛杉矶县居民与钠摄入量相关的自我报告知识和健康行为。
我们在 2014 年 12 月至 2016 年 8 月期间，对洛杉矶县成年人样本进行了 3 次关于饮食钠知识的横断面互联网小组调查。构建了多项和逻辑回归模型，以描述钠知识与自我报告健康行为之间的关联。
共有 7067 名小组参与者点击进入在线调查，2862 人完成了调查（调整后的响应率=40.5%）。只有 102 名受访者（3.6%）能够准确报告推荐的每日成年人应摄入的钠毫克数（1500mg 至 2300mg）。了解每日钠摄入量建议与增加使用营养成分标签做出食品购买决策的几率相关（调整后的优势比 [AOR]，3.48；95%置信区间 [CI]，1.59-7.60），并与降低采取措施预防高血压的几率相关（AOR，0.38；95%CI，0.19-0.74）。
洛杉矶县居民对推荐的每日钠摄入量的了解有限。增加对这些建议的理解的努力可能会鼓励更广泛地参与健康行为。卫生机构应在其饮食和营养教育工作中整合减钠信息。
