Additionally, when subgroup analysis was performed according to study design, the prospective studies which exhibited more powerful statistics still showed a statistically significant prognostic value for Ki-67 expression in lymphoma (HR = 1.336, 95% CI: 1.001-1.782; P = 0.049).
The proposed methods are statistically more powerful and computationally more efficient than existing ones.
These data would have enabled us to use free-responses ROC (FROC) analysis to evaluate observers' performance which is a statistically more powerful method (Krupinski, 2010).
The proposed design and inference procedure is shown to be statistically more powerful than existing alternative designs with the same sample sizes.
Pooling sequences from multiple mitochondrial protein-coding genes should result in statistically more powerful estimates of relationships among species that diverged sufficiently recently that most nucleotide substitutions are synonymous.
This experimental design is a more efficient use of resources, providing more data per array and is thus statistically more powerful than a reference design.
In order to further characterise the disease signal in endothelial cells, we investigated alterations in functional categories of genes, a statistically more powerful approach than considering individual gene changes.
Repeated-measures designs, however, are statistically more powerful than independent data sets, which makes the within-subject ANOVA more robust.
Gene set tests can be statistically more powerful than genewise tests as evidence is accumulated from many genes.
