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University of Southern California

Health Statistics   Tags: census, mortality, quantitative, statistics, stats, students  

Statistical information relating to health and disease.
Last Updated: Nov 21, 2014 URL: http://norris.usc.libguides.com/healthstatistics Print Guide RSS Updates

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Statistical Definitions

Incidence: the number of newly diagnosed cases during a specific time period.

Life Expectancy: the average number of years of remaining life from a particular age based on the probabilities of death in each age group in one particular year.

Lifetime Risk: the probability of developing or dying of a specific disease.

Morbidity: the proportion of patients with a particular disease during a given year per given unit of population.

Mortality: all deaths reported in a given population during a specific time period. A measure of the incidence of death.

Prevalence: the number of new and pre-existing cases alive on a certain date. The proportion of persons with a particular disease or condition at a point in time.

Reporting Bias: an assessment bias that occurs when individuals in one group are more likely to report past events than individuals in another group.  Reporting bias is especially likely to occur when one group is under disproportionate pressure to report confidential information.

Sensitivity and Specificity: measures for assessing the results of diagnostic and screening tests. Sensitivity represents the proportion of truly diseased persons in a screened population who are identified as being diseased by the test. It is a measure of the probability of correctly diagnosing a condition. Specificity is the proportion of truly nondiseased persons who are so identified by the screening test. It is a measure of the probability of correctly identifying a nondiseased person.

Survival: the proportion of patients alive at some point subsequent to the diagnosis of their specific disease.

Vital Statistics: used for general articles concerning statistics of births, deaths, marriages, etc.

 

 

 

Mapping Software

  • Social Explorer
    Allows users to visually display demographic data in the U.S. from 1790-present at a variety of geographic levels, createreports, maps and animations that can be downloaded.
  • SimplyMap
    Mapping application enables users to quickly create thematic maps and reports/tables using extensive demographic, social, business and marketing data.
  • Google Fusion Tables
    Use Fusion Tables (in Google Drive) to create maps from tables of data. Make your own tables or use existing data tables.
  • PolicyMap
    Create maps using economic, health, and social data.
  • ArcGIS by Esri
    ArcGIS is available for use on computers in Leavey Library (on the University Park Campus).
  • ArcGIS and Esri software for students from Spatial Sciences Institute
    USC students are also eligible for selected versions of Esri software. Contact the Spatial Sciences Institute for details.

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