ERIC: Case Controlled Studies Flashcards Preview

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Flashcards in ERIC: Case Controlled Studies Deck (12)
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Case control study

study used to determine if an association between an exposure and a specific heath outcome


Base sampling also called

case base sampling


Base sampling def

This sampling involves using controls selected from the source population such that every person has the same chance of being included as a control.


Cumulative density sampling also called

Survivor sampling


Cumulative density sampling def

When controls are sampled from those people who
remained free of the health outcome at the end of follow- up


incidence density sampling also called

risk set sampling


incidence density sampling def

when controls are selected from the at-risk source population at the same time as cases occur (controls must be eligible to become a case if the health outcome develops in the control at a later time during the period of observation)


Case control study are most effective for

rare diseases


antecedent: consequence bias

when you conclude that a second thing is caused by a first thing because the first thing came before the second thing


survivor bias

concentrating on the people or things that made it past some selection process and overlooking those that did not, typically because of their lack of visibility.


recall bias

when participants (relying on memory to give self-report misrepresent what events/experiences

is a systematic error caused by differences in the accuracy or completeness of the recollections retrieved ("recalled") by study participants regarding events or experiences from the past.


selection bias

the selection of individuals, groups or data for analysis in such a way that proper randomization is not achieved