Power analysis to detect treatment effects in longitudinal clinical trials for Alzheimer's disease.

Alzheimers Dement (N Y) · 2017 · PMC5590710 · PMID 28890916

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may not be significantno p-value reported

The sample sizes calculated under Ξ JC ( w ) are always smaller than the ones calculated under Ξ C ( w ) for fixed weights, although the reduction may not be significant; for example, there is a 3% reduction in sample sizes when Ξ JC ( w ) is used with w = w J C ∗ .

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