Readers not making a formal study of epidemiology will often see the names of epidemiological methods quoted without reference to their actual definition.

A number of concepts recur with particular frequency:

• Hazard ratio
• Odds ratio
• Relative risk

External links

• The Centre for Evidence Based Medicine (http://www.cebm.net/toolbox.asp) at Oxford maintains an on-line "Toolbox" of evidence based medicine methods.
• Epimonitor (http://www.epimonitor.net/index.htm) has a comprehensive list of links to associations, agencies, bulletins, etc.
• Epidemiology for the Uninitiated (http://bmj.bmjjournals.com/epidem/epid.html) On line text, with easy explanations.
• North Carolina Center for Public Health Preparedness Training (http://www.sph.unc.edu/nccphp/training/) On line training classes for epidemiology and related topics.