Abusabha Rayane, Namjoshi Dipti, Klein Amy
Nutrition Science Department, The Sage Colleges, 327 Ackerman Hall, Troy, NY 12180, USA.
J Am Diet Assoc. 2011 Oct;111(10):1549-55. doi: 10.1016/j.jada.2011.07.003.
High cost and limited access to food have been associated with lower intake of fruits and vegetables in limited-income individuals. The Veggie Mobile is a van that carries fresh produce and travels in low-income neighborhoods, selling fruits and vegetables at a fraction of regular supermarket prices. The purpose of this study was to determine whether participation in the Veggie Mobile increases fruit and vegetable intake in a group of seniors. The intervention, buying fruits and vegetables from the Veggie Mobile, was implemented between April and October 2008 in two senior housing sites that had not previously received Veggie Mobile services. Participants were asked about fruit and vegetable intake using a modified six-item questionnaire based on the Behavioral Risk Factor Surveillance System at preintervention and again at 3 to 5 months. The post-survey also included questions about perceived benefits and barriers to using the Veggie Mobile. The two cross-sections of seniors were matched using date of birth. Wilcoxon signed rank test and paired samples t tests examined change in pre- and post-intervention variables. Seventy-nine older adults completed the baseline survey and 63 completed the post-survey. Of these, 43 participants completed both surveys (70% white [n=30], mean age 69 ± 9 years). Mean intake of fruits and vegetables after using the Veggie Mobile increased by 0.37 servings/day. Vegetable intake alone increased from 1.98 ± 1.71 servings/day to 2.58 ± 1.4 servings/day (P=0.027), half of which was potatoes. Change in fruit intake was not significant (P=0.358). At post-intervention, seniors visited the supermarket less often (P=0.001) and spent an average of $14.92 less during their last visit. The majority of participants who completed the post-survey (62 of 63) indicated being satisfied with the program. The Veggie Mobile provides an example of a simple community intervention that has potential to lead to positive behavior change among low-income seniors.
高食品成本和获取食物受限与低收入人群水果和蔬菜摄入量较低有关。“蔬菜流动车”是一辆装载新鲜农产品的货车,行驶于低收入社区,以普通超市价格的一小部分出售水果和蔬菜。本研究的目的是确定参与“蔬菜流动车”项目是否会增加一组老年人的水果和蔬菜摄入量。干预措施是从“蔬菜流动车”购买水果和蔬菜,于2008年4月至10月在两个此前未接受过“蔬菜流动车”服务的老年住房场所实施。在干预前和3至5个月后,使用基于行为风险因素监测系统的改良六项问卷询问参与者的水果和蔬菜摄入量。调查后还包括关于使用“蔬菜流动车”的感知益处和障碍的问题。这两组老年人根据出生日期进行匹配。采用Wilcoxon符号秩检验和配对样本t检验来检验干预前后变量的变化。79名老年人完成了基线调查,63人完成了调查后评估。其中,43名参与者完成了两项调查(70%为白人[n = 30],平均年龄69±9岁)。使用“蔬菜流动车”后,水果和蔬菜的平均摄入量增加了0.37份/天。仅蔬菜摄入量就从1.98±1.71份/天增加到2.58±1.4份/天(P = 0.027),其中一半是土豆。水果摄入量的变化不显著(P = 0.358)。干预后,老年人去超市的频率降低(P = 0.001),上次去超市时平均花费减少了14.92美元。完成调查后评估的大多数参与者(63人中的62人)表示对该项目满意。“蔬菜流动车”提供了一个简单的社区干预示例,有可能导致低收入老年人的积极行为改变。