Seasonality, household food security, and nutritional status in Dinajpur, Bangladesh
Seasonality, household food security, and nutritional status in Dinajpur, Bangladesh
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DOI：
10.1177/156482650802900308
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发表时间：
2008-09-01
影响因子：
1.9
通讯作者：
Egan, Rebecca
中科院分区：
文献类型：
--
作者：
Hillbruner, Chris;Egan, Rebecca
背景。季节性对粮食安全和营养状况的影响已被广泛接受。然而，研究通常集中在农村家庭，并没有探讨季节性影响的具体机制。 目的。调查季节性在确定低收入城市家庭粮食安全和营养状况方面的作用，并找出季节性产生影响的具体途径。方法。使用了来自 CARE/IFPRI 的二次面板数据。 2002 年至 2003 年，从孟加拉国迪纳杰布尔低收入地区约 600 个家庭收集了三轮数据，两次在季风季节，一次在旱季。家庭层面的调查收集了有关收入和支出、就业、城市农业、健康和资产的数据。身高和体重测量是针对 6 至 72 个月大的儿童进行的。然后使用配对 t 检验和逻辑固定效应模型来探索季节性的作用。结果。与旱季相比，季风季节粮食不安全、浪费和生长不足的发生率均显着升高。饮食多样性和天气造成的失业被认为是季节影响家庭粮食安全的具体途径。然而，假设导致营养状况季节性下降的机制（例如儿童疾病）并未被发现具有重要意义。结论。季节对迪纳杰布尔的粮食安全和营养状况产生了重大影响，季风季节期间家庭的状况持续恶化。应实施促进粮食市场发展、支持饥饿季节就业和防止营养状况季节性下降的举措。
Background. The influence of seasonality on food security and nutritional status is widely accepted. However, research has typically focused on rural households and has not explored the specific mechanisms underlying seasonal effects.Objective. To investigate the role of seasonality in determining the food security and nutritional status of low-income urban households and to isolate specific pathways through which seasonality has its impact.Methods. Secondary panel data from CARE/IFPRI were utilized. Three rounds of data were collected from approximately 600 households in low-income areas of Dinajpur, Bangladesh, from 2002 through 2003, twice during the monsoon season and once in the dry season. Household-level surveys collected data on income and expenditure, employment, urban agriculture, health, and assets. Height and weight measurements were taken from children between the ages of 6 and 72 months. Paired t-tests and logistic fixed-effects modeling were then used to explore the role of seasonality.Results. The prevalence rates of food insecurity, wasting, and inadequate growth were all significantly higher during the monsoon season as compared with the dry season. Dietary diversity and lost work due to the weather were identified as specific pathways through which season affected household food security. However, mechanisms hypothesized to contribute to seasonal declines in nutritional status, such as child illness, were not-found to be significant.Conclusions. Season had a significant effect on both food security and nutritional status in Dinajpur, with households consistently worse off during the monsoon season. Initiatives to promote food market development, support employment during the hunger season, and prevent seasonal declines in nutritional status should be implemented.