EHS 260 Lecture 16: Nature of Evidence part 3
7 May 2016
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Document Summary
Important to report rates, not just cases: number of injuries in a fitness facility. 50 injuries: need to take the denominator into account. If the facility has 50 clients (rate = x %) If the facility has 100 clients (rate = x %) If the facility has 1,000 clients (rate = x %) If the facility has 2,000 clients (rate = x %) Typically the incidence and prevalence rates are less than 1. Therefore, to make the number meaningful, they are expressed as some power of 10. If the rate is calculated to be . 005 (deaths/year) 5 deaths per 1,000 individuals in the population per year. If . 09 people/year are diagnosed with a disease. Formula for prevalence rate number of people with the health-related outcome at a specified time. P = ___________________________________________________________________ number of people in the population at risk at the specified time. How many people have a particular disease or engage in a behavior at a certain time.
