Quantification of Urbanization in Relation to Chronic Diseases in Developing Countries: A Systematic Review
- 929 Downloads
During and beyond the twentieth century, urbanization has represented a major demographic shift particularly in the developed world. The rapid urbanization experienced in the developing world brings increased mortality from lifestyle diseases such as cancer and cardiovascular disease. We set out to understand how urbanization has been measured in studies which examined chronic disease as an outcome. Following a pilot search of PUBMED, a full search strategy was developed to identify papers reporting the effect of urbanization in relation to chronic disease in the developing world. Full searches were conducted in MEDLINE, EMBASE, CINAHL, and GLOBAL HEALTH. Of the 868 titles identified in the initial search, nine studies met the final inclusion criteria. Five of these studies used demographic measures (such as population density) at an area level to measure urbanization. Four studies used more complicated summary measures of individual and area level data (such as distance from a city, occupation, home and land ownership) to define urbanization. The papers reviewed were limited by using simple area level summary measures (e.g., urban rural dichotomy) or having to rely on preexisting data at the individual level. Further work is needed to develop a measure of urbanization that treats urbanization as a process and which is sensitive enough to track changes in “urbanicity” and subsequent emergence of chronic disease risk factors and mortality.
KeywordsUrbanization Chronic disease Systematic review Developing countries
- 1.Ezzati M, Vander Hoorn S, Lawes CMM, et al. Urbanisation and health. Clin. Med. 2005;5:137–141.Google Scholar
- 5.World Health Organization. The World Health Report 2007: Global Public Health Security in the 21st Century—A Safer Future. Geneva: World Health Organization; 2007.Google Scholar
- 9.Mendez MA, Popkin BM. Globalization, urbanization and nutritional change in the developing world. Electron J Agric Dev Econ. 2004;1:220–241.Google Scholar
- 10.Mohan V, Mathur P, Deepa R, et al. Urban rural differences in prevalence of self-reported diabetes in India—The WHO-ICMR Indian NCD risk factor surveillance. Diabetes Res Clin Pract. 2008;In Press.Google Scholar
- 12.World Bank. World Bank list of developing countries. Available at: http://web.worldbank.org/WBSITE/EXTERNAL/DATASTATISTICS/0,,contentMDK:20421402~pagePK:64133150~piPK:64133175~theSitePK:239419,00.html. Accessed on: April 1, 2007.