Brooks Carolyn J, Barrett Jessica, Daly James, Lee Rebekka, Blanding Nineequa, McHugh Anne, Williams David, Gortmaker Steven
Carolyn J. Brooks, Jessica Barrett, James Daly, Rebekka Lee, David Williams, and Steven Gortmaker are with the Harvard T. H. Chan School of Public Health, Boston, MA. Nineequa Blanding and Anne McHugh are with the Boston Public Health Commission, Boston.
Am J Public Health. 2017 Dec;107(12):1951-1957. doi: 10.2105/AJPH.2017.304070. Epub 2017 Oct 19.
To evaluate a community-level sodium-reduction intervention in Boston, Massachusetts. Reducing sodium in the food offerings of community settings may help reduce hypertension disparities.
We examined changes in the proportion of prepackaged foods with greater than 200 milligrams of sodium in 7 hospitals, 8 YMCAs, 4 community health centers, and 2 organizations serving homeless populations. Research assistants documented prepackaged items in cafeterias, kiosks, and vending machines before and after the intervention (2013-2015). We assessed intervention change via linear mixed models accounting for repeated observations.
There were 161 access points at baseline (4347 facings) and 171 (4996 facings) at follow-up. The percentage of prepackaged products with greater than 200 milligrams of sodium decreased from 29.0% at baseline to 21.5% at follow-up (P = .003). Changes were driven by improvements in hospital cafeterias and kiosks (P = .003). The percentage of products with greater than 200 milligrams of sodium in YMCA vending decreased 58% (from 27.2% to 11.5%; P = .017); other organizations had nonsignificant declines.
We found modest reductions in the percentage of higher-sodium prepackaged products across community institutions. Community-level interventions may increase availability of lower-sodium products in the food supply.
评估马萨诸塞州波士顿市一项社区层面的钠减量干预措施。减少社区场所食品供应中的钠含量可能有助于缩小高血压差异。
我们调查了7家医院、8家基督教青年会、4家社区健康中心以及2家为无家可归者服务的机构中，钠含量超过200毫克的预包装食品比例的变化。研究助理记录了干预前后（2013 - 2015年）自助餐厅、售货亭和自动售货机中的预包装食品。我们通过考虑重复观测值的线性混合模型评估干预变化。
基线时有161个供应点（4347个陈列面），随访时有171个（4996个陈列面）。钠含量超过200毫克的预包装产品百分比从基线时的29.0%降至随访时的21.5%（P = 0.003）。变化是由医院自助餐厅和售货亭的改善推动的（P = 0.003）。基督教青年会自动售货机中钠含量超过200毫克的产品百分比下降了58%（从27.2%降至11.5%；P = 0.017）；其他机构的下降不显著。
我们发现社区机构中高钠预包装产品的百分比有适度下降。社区层面的干预措施可能会增加食品供应中低钠产品的可获得性。
