Statistics are important for quantifying the scope of a problem and its impact.
PubMed/MEDLINE has a subheading for statistics & numerical data used with non-disease headings for the expression of numerical values that describe particular sets or groups of data.statistics. For statistics on diseases use the subheading epidemiology.
This page includes lists of suggested sources for finding specific types of statistics and data. The University of Maryland provides an excellent guide to finding international statistics.
