Stats Flashcards by Max Landsborough | Brainscape

Q

Outcome measure for a CCT (case controlled)?

A

Odds ratio

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Q

How to calculate variance?

A

Square the SD

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Q

Specificity

A

TN/(TN+FP)

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Q

Sensitivity

A

TP/(TP+FN)

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Q

PPV

A

TP/(TP+FP)

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Q

NPV

A

TN/(TN+FN)

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Q

Likelihood ratio +

A

Sens/1-Spec

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Q

LR-

A

1-Sens/Spec

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Q

Power calculation

A

1 - the probability of a type II error

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Q

Absolute risk reduction

A

Control rate-experimental rate

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Q

Relative risk

A

Experimental rate/control rate

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Q

Standard error

A

Standard deviation/Square root of number of patients

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