7. Validesa i Errors Flashcards

1
Q

En quins estudis epidemiologics son mes freq els biaixos?

A

Casos i controls

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2
Q

Com reduim l’error aleatori? I el sistematic?

A

Aleatori augmentant la N, sistematic depen del error

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3
Q
El factor de confusio
A) pot ser diferencial o no diferencial
B) pot ser un pas intermig entre Exposicio i malaltia
C) modifica RR
D) és un FR associat a exposicio
A

D) FR associat a exposicio

Modifica OR

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4
Q

Quin error modifica la validesa i quins la fiabilitat?

A

Validesa - error sitematic

Fiabilitat- error aleatori

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5
Q

Com podem controlar els factors de confusio?

A

MAREA

Multivariant, aleatoritzacio, restriccio, estratificacio, aparellament

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