Epidemiological methods

Texts and literature in epidemiology often make use of jargon related to epidemiological methods without reference to their actual definition.

A number of basic concepts recur with particular frequency:
* Hazard ratio, also known as the Incidence Rate Ratio
* Odds ratio
* Risk ratio
* Relative risk, a generic term for Rate Ratio, Risk Ratio, and sometimes the Odds Ratio.

Measures

# Measures of occurrence
## Incidence measures
### Incidence rate, where cases included are defined using a case definition
### Hazard rate
### Cumulative incidence
## Prevalence measures
### Point prevalence
### Period prevalence
# Measures of association
## Relative measures
### Risk ratio
### Rate ratio
### Odds ratio
### Hazard ratio
## Absolute measures
### Risk/rate/incidence difference
### Attributable risk
#### Attributable risk in exposed
#### Percent attributable risk
#### Levin’s attributable risk
# Other measures
## Virulence and Infectivity
## Mortality rate and Morbidity
## Case fatality
## Sensitivity (tests) and Specificity (tests)

ee also

* Study design
* Epidemiology
* OpenEpi
* Epi_Info

External links

* [http://www.Epidemiologic.org/ Epidemiologic.org] Epidemiologic Inquiry online weblog for epidemiology researchers
* [http://www.epidemiologic.org/forum/ Epidemiology Forum] A discussion and forum community for epi analysis support and fostering questions, debates, and collaborations in epidemiology
* [http://www.cebm.net/toolbox.asp The Centre for Evidence Based Medicine] at Oxford maintains an on-line "Toolbox" of evidence based medicine methods.
* [http://www.epimonitor.net/index.htm Epimonitor] has a comprehensive list of links to associations, agencies, bulletins, etc.
* [http://bmj.bmjjournals.com/epidem/epid.html Epidemiology for the Uninitiated] On line text, with easy explanations.
* [http://www.sph.unc.edu/nccphp/training/ North Carolina Center for Public Health Preparedness Training] On line training classes for epidemiology and related topics.


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