EPIB 301 Lecture 5: Data Sources
15 Feb 2017
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Quality: quality determined by sources used to obtain data and how completely the data covers the reference population, affects the way data is used/types of analyses performed. Personal medical records w identifying info cannot be released w/out consent: how complete is the population coverage? representativeness. Representativeness: external validity: refers to generaliza(cid:271)ilit(cid:455) of fi(cid:374)di(cid:374)gs to the populatio(cid:374) it"s supposed to (cid:396)ep(cid:396)ese(cid:374)t. Complete data set: data accuracy: was everyone paying attention, case detection: Sources used in epi research: u. s. census: provides data, can be used to define denominator in rates with respect to official estimates of total population size and subdivisions of population by geographical data. Fact finder: vital registration system/vital events: vital events are known as deaths, births, marriages, divorces, fetal deaths. U. s. collects info on these events routinely. Laws of each state provide continuous and permanent registration system. Each system depends on efforts of physicians, hospital staff, funeral staff, coroners, medical examiners, etc for original death records.
