Hanson Karla L, Kolodinsky Jane, Wang Weiwei, Morgan Emily H, Pitts Stephanie B Jilcott, Ammerman Alice S, Sitaker Marilyn, Seguin Rebecca A
Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA.
Department of Community Development and Applied Economics, University of Vermont, Burlington, VT 05405, USA.
Nutrients. 2017 Jul 8;9(7):726. doi: 10.3390/nu9070726.
This paper examines fruit and vegetable intake (FVI) in low-income households that participated in a cost-offset (CO), or 50% subsidized, community-supported agriculture (CSA) program. CSA customers paid farms upfront for a share of the harvest, and received produce weekly throughout the growing season. A cohort of adults and children 2-12 y in a summer CO-CSA were surveyed online twice: August 2015 ( = 41) and February 2016 ( = 23). FVI was measured by the National Cancer Institute's (NCI) Fruit and Vegetable Screener (FVS) and an inventory of locally grown fruits and vegetables. FVI relative to United States (US) recommendations and averages, and across seasons, were tested with non-parametric tests and paired -tests ( < 0.05). Both adults and children in the CO-CSA had higher FVI than the US averages, and more often met recommendations for vegetables. Some summer fruits and vegetables were more often eaten when locally in-season. The CO-CSA model warrants further examination as an avenue for improving vegetable consumption among adults and children in low-income households. However, causality between CO-CSA participation and FVI cannot be inferred, as CO-CSA participants may be positive deviants with respect to FVI. A multi-state randomized controlled trial is currently underway to evaluate impacts of CO-CSAs on FVI and related outcomes.
本文研究了参与成本抵消(CO)或50%补贴的社区支持农业(CSA)项目的低收入家庭的果蔬摄入量(FVI)。CSA客户预先向农场支付收获份额的费用,并在整个生长季节每周收到农产品。对夏季参与CO-CSA项目的一组2至12岁的成年人和儿童进行了两次在线调查:2015年8月(n = 41)和2016年2月(n = 23)。FVI通过美国国立癌症研究所(NCI)的果蔬筛选器(FVS)以及当地种植的果蔬清单来衡量。使用非参数检验和配对t检验(p < 0.05)对相对于美国建议摄入量和平均摄入量以及不同季节的FVI进行了测试。CO-CSA项目中的成年人和儿童的FVI均高于美国平均水平,并且更常达到蔬菜的建议摄入量。一些夏季水果和蔬菜在当地上市季节时更常被食用。CO-CSA模式作为改善低收入家庭成年人和儿童蔬菜消费的途径值得进一步研究。然而,由于CO-CSA参与者在FVI方面可能是正向偏差者,因此无法推断参与CO-CSA项目与FVI之间的因果关系。目前正在进行一项多州随机对照试验,以评估CO-CSA项目对FVI及相关结果的影响。