HSCI 130 Lecture Notes - Lecture 10: Cumulative Incidence, Temporality, Case Fatality Rate
16 Jun 2016
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Document Summary
Incidence rate: measures the rate of development of a disease within a population. Sometimes called incidence density or force of morbidity/mortality. Ir are true rates meaning they can go up or down. The denominator is the amt of time people were at risk of getting disease. Helps to research on causes, prevention and treatment. *know difference between cumulative incidence, incidence rate and prevalence. Cause: event, condition or characteristic that affects the likelihood of being exposed to the disease. Sufficient causes: factor(s) that will inevitably cause disease. Component causes: factor that contributes to causing disease but not on its own. Necessary causes: any agent that is required for development of a disease. Looking for a factor that is associated with all cases (not part of hill criteria) Biological plausibility: what is the likely biological mechanism. Consistency: is it found across a range of cases/studies. Show all components that are sufficient causes in a given disease.
