Levels of Evidence Flashcards by Naomi Nava | Brainscape

Q

Level 1

A

SR of number of RCT

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Q

Level 2

A

individual RCT

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Q

Lvl 3

A

nonrandomized controlled cohort study

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Q

lvl 4

A

Case control

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Q

Case series

A

lvl 4

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Q

historically controlled studies

A

lvl 4

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Q

Mechanism based reasoning

A

5

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