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  2. Rate ratio - Wikipedia

    en.wikipedia.org/wiki/Rate_ratio

    In epidemiology, a rate ratio, sometimes called an incidence density ratio or incidence rate ratio, is a relative difference measure used to compare the incidence rates of events occurring at any given point in time. It is defined as:

  3. Incidence (epidemiology) - Wikipedia

    en.wikipedia.org/wiki/Incidence_(epidemiology)

    In contrast, a disease that has a short duration may have a low prevalence and a high incidence. When the incidence is approximately constant for the duration of the disease, prevalence is approximately the product of disease incidence and average disease duration, so prevalence = incidence × duration. The importance of this equation is in the ...

  4. Prevalence - Wikipedia

    en.wikipedia.org/wiki/Prevalence

    The relationship between incidence (rate), point prevalence (ratio) and period prevalence (ratio) is easily explained via an analogy with photography. Point prevalence is akin to a flashlit photograph: what is happening at this instant frozen in time.

  5. Hazard ratio - Wikipedia

    en.wikipedia.org/wiki/Hazard_ratio

    The hazard ratio would be 2, indicating a higher hazard of death from the treatment. To illustrate how hazard ratio is linked to projected risk: in a population where the incidence of a disease is 10% by age 65 (eg: Dementia [1] [2]), a hazard ratio of 4.42 [3] (eg: Aripiprazole medication) results in an expected incidence of 37.3% by age 65. [4]

  6. Epidemiology of diabetes - Wikipedia

    en.wikipedia.org/wiki/Epidemiology_of_diabetes

    Diabetes rates at county levels 2004 - 2009. Diabetes rates in the United States, 1994-2010. Diabetes rates in the United States, like across North America and around the world, have been increasing substantially.The diagnosis of diabetes has quadrupled in the last 30 years in America, increasing from 5.5 million in 1980 to 21.1 million in 2010 ...

  7. Infection rate - Wikipedia

    en.wikipedia.org/wiki/Infection_rate

    Calculating the infection rate is used to analyze trends for the purpose of infection and disease control. [1] An online infection rate calculator has been developed by the Centers for Disease Control and Prevention that allows the determination of the streptococcal A infection rate in a population. [2]

  8. Risk difference - Wikipedia

    en.wikipedia.org/wiki/Risk_difference

    It is computed as , where is the incidence in the exposed group, and is the incidence in the unexposed group. If the risk of an outcome is increased by the exposure, the term absolute risk increase (ARI) is used, and computed as I e − I u {\displaystyle I_{e}-I_{u}} .

  9. Diabetes management software - Wikipedia

    en.wikipedia.org/wiki/Diabetes_management_software

    Type 2 diabetes makes up about 85-90% of all cases. Increases in the overall diabetes prevalence rates largely reflect an increase in risk factors for type 2, notably greater longevity and being overweight. Diabetes mellitus occurs throughout the world, but is more common is type 2 diabetes in the more developed countries.