PUBH2008 Lecture 3: MEASURES OF DISEASE FREQUENCY AND MEASURES OF ASSOCIATION
Document Summary
Life expectancy is not exactly precise because we expect life expectancy to increase over. Time period or point in time when data were collected. People who are susceptible to a given disease. Correct estimate of people under study -> size. Important when you want to see how quickly a disease is occurring. There are two fundamental measures of a disease. Proportion of the population with disease during a specified period of time. A proportion ranges between 0 and 1, 0% to 100% when expressed as a percentage. Estimate of the probability that a person within the population will have the disease. Assess occurrences of a disease in a community. Assists in planning for health and social needs. Cumulative incidence: measures the proportion of people who develop the disease during the specifies time period. A proportion -> ranges between 0 and 1, or 0% to 100% when expressed as a percentage.
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