A multi-level intervention in subsidized housing sites to increase fruit and vegetable access and intake: Rationale, design and methods of the 'Live Well, Viva Bien' cluster randomized trial.
A multi-level intervention in subsidized housing sites to increase fruit and vegetable access and intake: Rationale, design and methods of the 'Live Well, Viva Bien' cluster randomized trial.
复制标题
DOI：
10.1186/s12889-016-3141-7
复制
发表时间：
2016-06-28
影响因子：
4.5
通讯作者：
Principato L
中科院分区：
文献类型：
--
作者：
Gans KM;Gorham G;Risica PM;Dulin-Keita A;Dionne L;Gao T;Peters S;Principato L
摄入足够的水果和蔬菜（F&V）对预防疾病很重要。然而，大多数美国人，特别是低收入和少数民族，吃得不够。这些差异部分归因于低收入社区的食品环境，在那里，居民往往难以获得负担得起的健康食品，而容易获得廉价的不健康食品。通过移动的市场在服务不足的社区增加获得负担得起的健康食品的机会，是改善饮食行为和减少F&V摄入量差异的一项有前途的全年战略。然而，迄今为止，还没有随机对照试验研究其有效性。“活得好，活得好”（LWVB）随机对照试验的目的是评估多组分移动的市场干预在增加补贴住房综合体居民的F&V摄入量方面的有效性。一个住宅区作为干预组的试点，其余14个人口统计学匹配的站点随机分为干预组或对照组。干预组接受为期12个月的双月折扣、移动的新鲜食品和V市场以及营养教育干预（两次食品和V运动、通讯、DVD和烹饪示范）。对照组接受体力活动和减压干预。结果指标包括F&V摄入量（由两名经过验证的F&V筛查人员在基线、6个月和12个月时测量）沿着潜在的心理社会中介变量。在整个研究过程中还进行了广泛的定量和定性工艺评价。以增加获得负担得起的健康食品的方式改变社区食品环境是改善低收入，种族和少数民族群体饮食行为的一项有前途的战略，这些群体患肥胖症和其他与食物有关的慢性病的风险增加。折扣，移动的F&V市场解决了吃更多F&V的所有主要障碍（高成本，低质量，有限的访问和有限的时间购物和烹饪），并提供了一个全年的解决方案，以有限的获得健康食品在低收入社区。LWVB是第一个评估移动的市场在增加F&V摄入量方面的有效性的随机对照试验。如果证明在增加F&V消费方面有效，LWVB可以广泛传播到难以获得新鲜F& V的社区。Clinicatrials.gov注册号：NCT 02669472首次收到：2016年1月19日。本文的在线版本（doi：10.1186/s12889-016-3141-7）包含补充材料，可供授权用户使用。
Adequate fruit and vegetable (F&V) intake is important for disease prevention. Yet, most Americans, especially low-income and racial/ethnic minorities, do not eat adequate amounts. These disparities are partly attributable to food environments in low-income neighborhoods where residents often have limited access to affordable, healthful food and easy access to inexpensive, unhealthful foods. Increasing access to affordable healthful food in underserved neighborhoods through mobile markets is a promising, year-round strategy for improving dietary behaviors and reducing F&V intake disparities. However, to date, there have been no randomized controlled trials studying their effectiveness. The objective of the ‘Live Well, Viva Bien’ (LWVB) cluster randomized controlled trial is to evaluate the efficacy of a multicomponent mobile market intervention at increasing F&V intake among residents of subsidized housing complexes. One housing complex served as a pilot site for the intervention group and the remaining 14 demographically-matched sites were randomized into either the intervention or control group. The intervention group received bimonthly, discount, mobile, fresh F&V markets in conjunction with a nutrition education intervention (two F&V campaigns, newsletters, DVDs and cooking demonstrations) for 12 months. The control group received physical activity and stress reduction interventions. Outcome measures include F&V intake (measured by two validated F&V screeners at baseline, six-month and twelve-months) along with potential psychosocial mediating variables. Extensive quantitative and qualitative process evaluation was also conducted throughout the study. Modifying neighborhood food environments in ways that increase access to affordable, healthful food is a promising strategy for improving dietary behaviors among low-income, racial and ethnic minority groups at increased risk for obesity and other food-related chronic diseases. Discount, mobile F&V markets address all the major barriers to eating more F&V (high cost, poor quality, limited access and limited time to shop and cook) and provide a year-round solution to limited access to healthful food in low-income neighborhoods. LWVB is the first randomized controlled trial evaluating the effectiveness of mobile markets at increasing F&V intake. If proven efficacious at increasing F&V consumption, LWVB could be disseminated widely to neighborhoods that have low access to fresh F&V. Clinicatrials.gov registration number: NCT02669472 First Received: January 19, 2016. The online version of this article (doi:10.1186/s12889-016-3141-7) contains supplementary material, which is available to authorized users.