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Table 3 Reasons for using sample size re-estimation methodology

From: A systematic review of the “promising zone” design

Reason

Number

Uncertainty in treatment estimates

n = 9

Simplicity/convenience

n = 4

Efficiency

n = 3

Ensure power is maintained

n = 6

Unspecified

n = 3

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Trials

ISSN: 1745-6215