Fotso Jean-Christophe
African Population & Health Research Center, PO Box 10787, 00100 GPO, Nairobi, Kenya.
Int J Equity Health. 2006 Jul 11;5:9. doi: 10.1186/1475-9276-5-9.
To document and compare the magnitude of inequities in child malnutrition across urban and rural areas, and to investigate the extent to which within-urban disparities in child malnutrition are accounted for by the characteristics of communities, households and individuals.
The most recent data sets available from the Demographic and Health Surveys (DHS) of 15 countries in sub-Saharan Africa (SSA) are used. The selection criteria were set to ensure that the number of countries, their geographical spread across Western/Central and Eastern/Southern Africa, and their socioeconomic diversities, constitute a good yardstick for the region and allow us to draw some generalizations. A household wealth index is constructed in each country and area (urban, rural), and the odds ratio between its uppermost and lowermost category, derived from multilevel logistic models, is used as a measure of socioeconomic inequalities. Control variables include mother's and father's education, community socioeconomic status (SES) designed to represent the broad socio-economic ecology of the neighborhoods in which families live, and relevant mother- and child-level covariates.
Across countries in SSA, though socioeconomic inequalities in stunting do exist in both urban and rural areas, they are significantly larger in urban areas. Intra-urban differences in child malnutrition are larger than overall urban-rural differentials in child malnutrition, and there seem to be no visible relationships between within-urban inequities in child health on the one hand, and urban population growth, urban malnutrition, or overall rural-urban differentials in malnutrition, on the other. Finally, maternal and father's education, community SES and other measurable covariates at the mother and child levels only explain a slight part of the within-urban differences in child malnutrition.
The urban advantage in health masks enormous disparities between the poor and the non-poor in urban areas of SSA. Specific policies geared at preferentially improving the health and nutrition of the urban poor should be implemented, so that while targeting the best attainable average level of health, reducing gaps between population groups is also on target. To successfully monitor the gaps between urban poor and non-poor, existing data collection programs such as the DHS and other nationally representative surveys should be re-designed to capture the changing patterns of the spatial distribution of population.
记录并比较城乡地区儿童营养不良方面不平等的程度,并调查社区、家庭和个人特征在多大程度上解释了城市内部儿童营养不良的差异。
使用撒哈拉以南非洲(SSA)15个国家人口与健康调查(DHS)中可得的最新数据集。设定选择标准以确保国家数量、其在西部/中部和东部/南部非洲的地理分布以及它们的社会经济多样性,能成为该地区的一个良好衡量标准,并使我们能够得出一些一般性结论。在每个国家和地区(城市、农村)构建家庭财富指数,从多层次逻辑模型得出的最高和最低类别之间的比值比,被用作社会经济不平等的一种衡量指标。控制变量包括母亲和父亲的教育程度、旨在代表家庭所在社区广泛社会经济生态的社区社会经济地位(SES),以及相关的母亲和儿童层面的协变量。
在撒哈拉以南非洲各国,虽然城乡地区发育迟缓方面的社会经济不平等确实存在,但城市地区的不平等程度要大得多。城市内部儿童营养不良的差异大于儿童营养不良的总体城乡差异,而且一方面城市内部儿童健康不平等与另一方面城市人口增长、城市营养不良或营养不良方面的总体城乡差异之间,似乎没有明显关系。最后,母亲和父亲的教育程度、社区SES以及母婴层面的其他可测量协变量,仅解释了城市内部儿童营养不良差异的一小部分。
健康方面的城市优势掩盖了撒哈拉以南非洲城市地区贫富之间的巨大差异。应实施专门优先改善城市贫困人口健康和营养状况的具体政策,以便在实现可达到的最佳平均健康水平的同时,缩小不同人群之间的差距。为成功监测城市贫困与非贫困人群之间的差距,应重新设计诸如人口与健康调查及其他全国代表性调查等现有数据收集项目,以捕捉人口空间分布的变化模式。