Epi 4-6 Flashcards

1
Q

induction period

A

time between exposure and development of disease

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2
Q

latent period

A

time between disease development and detection

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3
Q

emperical latent period

A

= induction period + latent period.

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4
Q

threats to validity

A

association is niet altijd causation

Altijd overwegen dat er andere verklaringen zijn

Interne validiteit: selecito, informatie bias, confounding

Externe validiteit

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5
Q

selectie bias in cohort oz

A

systematic error related to subject selection or partcipation

1: selection of participation of exposed and unexposed related to disease outcome
2: loss to follow up.

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6
Q

Information bias

A

Sys error door hoe data is verzamelt.

misclassificatie exposure (bv rapporteren van exposure niet accuraat, gelijk voor controle als exposure groep (non differential)

misclassificatie outcome
(bv strengere monitoring voor ziekte in E+)
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7
Q

strengh cohort oz

A

meerdere effecten van 1 exposure

temporele relatie.

direct meten incidence of exposed en unexposed.

Goed voor zelfdzame exposure.

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8
Q

limit cohort oz

A

inefficient for evaluation of rare disease

DUUR!

afha nkelijk van kwaliteit EHR

Validteit zeer in het gedrang door FU.

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9
Q

key features CC oz

A

selectie obv D status
cases zelfde als in cohort oz

CONTROLS ARE SAMPLE OF SOURCE POPULATION (geeft estimatie van exposure distribution .

OR kan direct berekend worden.

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