Charlton Karen E, Rose Donald
Nutrition and Dietetics Unit, Department of Medicine, University of Cape Town, South Africa.
Public Health Nutr. 2002 Jun;5(3):383-9. doi: 10.1079/phn2001320.
Household food insecurity is a major determinant of undernutrition, yet there is little information on its prevalence in the South African population. This paper assesses household food insecurity in South Africa using a quantitative and objective measure, known as food poverty, and provides prevalence estimates by geographic area and socio-economic condition.
Secondary data analysis combining two sources: Statistics South Africa's household-based 1995 Income and Expenditure Survey; and the University of Port Elizabeth's Household Subsistence Level series, a nationally-conducted, market-based survey.
South Africa.
A nationally representative sample of the entire country - stratified by race, province, and urban and non-urban areas - consisting of 28 704 households.
A household is defined to be in food poverty when monthly food spending is less than the cost of a nutritionally adequate very low-cost diet. The prevalence of food poverty in South Africa in 1995 was 43%. Food poverty rates were highest among households headed by Africans, followed by coloureds, Indians and whites. Higher food poverty rates were found with decreasing income, increasing household size, and among households in rural areas or those headed by females.
The widespread nature of household food insecurity in South Africa is documented here. Prevalence rates by geographic and socio-economic breakdown provide the means for targeting of nutritional interventions and for monitoring progress in this field. The corroboration of these findings with both internal validation measures and external sources suggests that food poverty is a useful, objective measure of household food insecurity.
家庭粮食不安全是营养不良的主要决定因素,但关于其在南非人口中的流行情况的信息却很少。本文使用一种称为粮食贫困的定量客观指标评估南非的家庭粮食不安全状况,并按地理区域和社会经济状况提供流行率估计值。
二次数据分析,结合两个来源:南非统计局基于家庭的1995年收入和支出调查;以及伊丽莎白港大学的家庭维持生计水平系列,这是一项全国性的基于市场的调查。
南非。
全国具有代表性的样本——按种族、省份以及城市和非城市地区分层——由28704户家庭组成。
当月食品支出低于营养充足的极低成本饮食的成本时,家庭被定义为处于粮食贫困状态。1995年南非粮食贫困的流行率为43%。以非洲人为主的家庭中粮食贫困率最高,其次是有色人种、印度人和白人。随着收入减少、家庭规模增加以及农村地区或女性当家的家庭中粮食贫困率更高。
本文记录了南非家庭粮食不安全的普遍情况。按地理和社会经济分类的流行率为营养干预的目标设定和该领域进展的监测提供了手段。这些发现通过内部验证措施和外部来源得到证实,表明粮食贫困是衡量家庭粮食不安全的一个有用的客观指标。