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现金转移是否会增加营养摄入量?肯尼亚无条件现金转移的实验证据。

Do cash transfers increase nutritional intakes? Experimental evidence from an unconditional cash transfer in Kenya.

机构信息

Department of Economics and Related Studies, University of York, York YO10 5DD, UK.

出版信息

Health Policy Plan. 2020 Aug 1;35(7):784-798. doi: 10.1093/heapol/czaa030.

Abstract

Malnutrition due to persistent food insecurity has been a serious public health issue in Kenya. An unconditional cash transfer programme, the Hunger Safety Net Programme (HSNP), was launched in 2009 in northern Kenya to reduce extreme poverty and to mitigate food insecurity. This study investigates the impact of the HSNP, on expenditure on food, types of food consumed and nutritional intake. Focusing on nutritional intake as well as spending and consumption is important because an unconditional cash transfer, which does not specify how the transferred money must be used, does not guarantee nutritional intake improvement. Converting food consumption data to caloric intake and nutrient content using food consumption databases, we calculate the intake of five macro-nutrients, seven vitamins and seven minerals and then estimate the impacts on nutritional intake 12 and 24 months after treatment exposure. This study finds the increased total expenditure on food items. Specifically, the beneficiary households increased their expenditure on milk and milk products and that on sugar after 12 months and expenditure on roots and tubers after 24 months. For consumption amounts, however, the HSNP did not show significant increases in all food categories except sugar. On the other hand, the HSNP improved the nutritional intakes of some macro- and micro-nutrients. The results show that beneficiary households substantially increased their intake of fat by 25.2% after 24 months and their intake of vitamin B12 by 36.6% and calcium by 34.9% after 12 months. The result does not yield sufficiently strong evidence that poorer households significantly enjoy greater improvements than other households.

摘要

由于持续的粮食不安全,营养不良一直是肯尼亚严重的公共卫生问题。2009 年,肯尼亚北部启动了一项无条件现金转移计划——饥饿安全网计划(HSNP),以减少极端贫困和缓解粮食不安全。本研究调查了 HSNP 对食品支出、消费的食品类型和营养摄入的影响。关注营养摄入以及支出和消费非常重要,因为无条件的现金转移并没有具体说明转移的资金必须如何使用,因此不能保证营养摄入的改善。本研究使用食品消费数据库将食品消费数据转换为热量摄入和营养成分,计算了五种宏量营养素、七种维生素和七种矿物质的摄入量,然后估计了治疗暴露后 12 个月和 24 个月对营养摄入的影响。本研究发现食品支出总额增加。具体来说,受益家庭在 12 个月后增加了对牛奶和奶制品以及糖的支出,在 24 个月后增加了对根茎类蔬菜的支出。然而,就消费数量而言,除了糖之外,HSNP 并没有在所有食品类别中显示出显著的增长。另一方面,HSNP 改善了一些宏量和微量营养素的营养摄入。结果表明,受益家庭在 24 个月后脂肪摄入量显著增加了 25.2%,在 12 个月后维生素 B12 摄入量增加了 36.6%,钙摄入量增加了 34.9%。结果并没有充分证明贫困家庭比其他家庭显著受益更多。

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