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Graphs

The page following the maps bears a set of four graphs showing various aspects of mortality for a particular cancer:

  1. Secular mortality trend. This graph is based on WHO-furnished mortality data (see "Material" above), available in the west for most cancers for the period 1952-1995; data for a few cancer sites are available starting from 1961 at best, but for many cancers not until 1980 or 1983. The mortality rates are age-standardized to the "world population" as described in the section on "Methods of Representation." The graphs are plotted on a linear scale.


  2. The second graph shows the mortality trend for 1995 as a function of age for the cancer in question. These figures are based on age-specific mortality rates in several 5-year age ranges: 0-4 years, 5-9 years, and so on up to 80-84 years and 85 years or older. Again, a linear scale is used.


  3. The third graph shows the secular mortality trend for males in two age ranges: 35-64 years and 65 years or older. This will show whether different trends are operative in the middle-aged and older segments of the population. These graphs are plotted on a semilogarithmic scale.


  4. The fourth graph is analogous to graph 3 showing the secular mortality trend for females in the two age ranges.

last update: 22/05/2007 back to top