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英文文献：Promoting consumption of traditional African vegetables and its effect on food and nutrition security in Tanzania-促进非洲传统蔬菜消费及其对坦桑尼亚食品和营养安全的影响
英文文献作者：Ochieng, Justus,Afari-Sefa, Victor,Karanja, Daniel,Rajendran, Srinivasulu,Silvest, Samali,Kessy, Radegunda
英文文献摘要：
Traditional African vegetables have recently received considerable attention for their contribution to food and nutrition security and opportunities for enhancing smallholder livelihoods. Promoting the production and consumption of traditional vegetables is expected to enhance household nutrition among urban and rural households. The Good Seed Initiative (GSI) program promoted production and consumption of nutrient-dense traditional African vegetables in Arusha region in Tanzania to reduce malnutrition through diet diversification. This study estimated the impact of the program on households, women of childbearing age, and children’s dietary diversity. The study used cross-sectional data from 258 program participants and 242 non-participants households and applied matching techniques to control for problems associated with unobserved heterogeneity, which could otherwise bias the outcome estimates. We compared our findings with the inverse probability of treatment weighting to correct for selection bias. We found that households participating in traditional vegetable promotion program had significantly higher dietary diversity of children under five and women in reproductive age. We found no significant impact of promotion program on households’ dietary diversity. The policy implication is that scaling up promotional activities to encourage consumers to grow and eat traditional vegetables would be an important element in initiatives to increase dietary diversity, particularly for children under five and women of childbearing age in Tanzania.
非洲传统蔬菜最近受到了相当大的关注，因为它们对粮食和营养安全的贡献以及提高小农生计的机会。促进传统蔬菜的生产和消费有望提高城市和农村家庭的营养水平。良好种子倡议(GSI)计划在坦桑尼亚阿鲁沙地区促进营养丰富的传统非洲蔬菜的生产和消费，以通过饮食多样化减少营养不良。这项研究估计了该计划对家庭、育龄妇女和儿童饮食多样性的影响。这项研究使用了来自258个项目参与者和242个非参与者家庭的横断面数据，并应用匹配技术来控制与未观察到的异质性相关的问题，否则可能导致结果估计偏倚。我们将我们的发现与处理加权的逆概率进行比较，以纠正选择偏差。我们发现，参与传统蔬菜推广计划的家庭中，五岁以下儿童和育龄妇女的膳食多样性显著更高。我们发现推广计划对家庭膳食多样性没有显著影响。这项政策的含义是，扩大鼓励消费者种植和食用传统蔬菜的促销活动，将是增加坦桑尼亚五岁以下儿童和育龄妇女饮食多样性举措的一个重要因素。
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