Figure 4.20 shows the number of deaths among persons ages 25–34 years for the six most common causes, plus all other causes grouped together, in the United States in 2003. This makes it difficult to compare causes of death for the 2 groups without reading the labels. An area map, also called a choropleth map, can be used to show rates of disease or other health conditions in different areas by using different shades or colors (Figure 4.35). Selected notifiable disease reports, United States, comparison of provisional 4-week totals ending December 11, 2004, with historical data.

Statistical tools such as linear regression can be applied to such data to quantify the correlation between variables in a scatter diagram.
If a study's horizontal line does not cross the vertical line, that study's result is statistically significant. The wedges should be labeled and arranged from largest to smallest, proceeding clockwise, although the “other” or “unknown” may be last. EpiMap is an application of Epi Info for creating maps and overlaying survey data, and is available for download.

Even when a spot map shows a large number of dots in the same area, the risk of acquiring disease may not be particularly high if that area is densely populated.

Risk assessment
Community emergency preparedness plan


  1. 20.11.2014 at 19:17:34

    Maybe with an inner lining of these and it's.

    Author: VERSACE
  2. 20.11.2014 at 23:56:12

    Will see for a Extended time been found to have traces of radioactive.

    Author: ZLOY_PAREN