sowm_2015__int__africa_full_report_low_res
sowm_2015__int__africa_full_report_low_res
sowm_2015__int__africa_full_report_low_res
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settlements. By comparison, Northern Africa<br />
has the <strong>low</strong>est prevalence of slums (13 percent<br />
in 2012). In Asia, the proportion of the urban<br />
population living in slums varies from 25 percent<br />
in Western Asia to 35 percent in Southern<br />
Asia. In Latin America and the Caribbean, slum<br />
prevalence is 24 percent. 22<br />
Most developing countries have a large share<br />
of their urban population living in slums, and<br />
the countries with larger percentages in slums<br />
tend to have higher urban child mortality rates.<br />
There are 11 countries where more than twothirds<br />
of all urban <strong>res</strong>idents are estimated to live<br />
in slums. These are: Central African Republic<br />
(96 percent), Chad (89 percent), Niger (82 percent),<br />
Mozambique (81 percent), Ethiopia (76<br />
percent), Madagascar (76 percent), Somalia (74<br />
percent), Benin (70 percent), Haiti (70 percent),<br />
Malawi (69 percent) and Liberia (68 percent).<br />
Seven of these 11 countries (all but Benin,<br />
Madagascar, Ethiopia and Niger) are also among<br />
the top 10 countries with the highest rates of<br />
urban under-5 mortality. 23<br />
Urbanization and Health<br />
Urbanization can have a positive or a negative<br />
impact on health. Infrastructure improvements<br />
such as better access to health services, education,<br />
sanitation and safe water supply that often<br />
accompany urbanization can improve health.<br />
But if urbanization is unplanned and rapid, it<br />
is prone to producing informal settlements<br />
with insufficient housing, poor sanitary conditions<br />
and crowding, all of which can accelerate<br />
the spread of diseases and lead to a worsening<br />
health status. The <strong>res</strong>earch suggests urban population<br />
growth in developing countries has done<br />
and may continue to do both. 24<br />
In general, nations that have high life<br />
expectancies and <strong>low</strong> mortality rates are highly<br />
urbanized. These are countries where city<br />
governments invest in sound policies. The<br />
improvements over the last 50+ years in mortality<br />
and morbidity rates in highly urbanized<br />
countries like Japan, Sweden, the Netherlands<br />
and Singapore are testimony to the potentially<br />
health-promoting featu<strong>res</strong> of modern cities. 25<br />
But rapid and disorganized urbanization can<br />
also lead to higher rates of under-5 mortality.<br />
This is especially true in <strong>low</strong>- and middleincome<br />
countries when rapid urbanization is<br />
combined with poor economic performance,<br />
poor governance, failure of national and urban<br />
housing policies, and institutional and legal failure.<br />
For example, recent <strong>res</strong>earch from Nigeria<br />
found that the urban child mortality rate<br />
increased with urban population growth. The<br />
increase in deaths was linked to more people<br />
living in slum-like conditions. 26<br />
14 Monrovia, Liberia