Figure 3From: PCA-based bootstrap confidence interval tests for gene-disease association involving multiple SNPsReal data analyses by PCA-BCIT with strategy 3 and confidence level 0.95. The horizontal axis denotes studies and vertical axis mean(PC1), the statistic used to calculate confidence intervals for cases and controls. PCA-BCIT s with strategy 3 were significant at confidence level 0.95.Back to article page